AdderLink IP
User Guide
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Introduction
Four simultaneous remote users
Thank you for choosing the AdderLink IP
from Adder Technology. This intelligent
product delivers straightforward setup,
secure operation and the ability to fully
control one or more computers from
almost anywhere.
AdderLink IP can support four remote
users at any one time. All of these may be
connected via the IP network port or one
may be linked via the modem/ISDN channel.
Local user
The console port allows
control of the system(s) by
a keyboard, video monitor
and mouse connected
directly to the AdderLink IP.
Remote control via a network
connection is nothing new and
Modem/ISDN port
This port offers a
Modem or ISDN
Modem or ISDN
connection option that
can be used alongside,
or instead of, the IP
network link. It also
offers a backup route
should the network fail.
software-only solutions to facilitate this
are commonplace. However, they all
present two major drawbacks: a) Special
software must be used on all of the
computers involved, especially the host,
and b) if that host ceases to operate, the
remote user is powerless to intervene.
IP network/
Internet
AdderLink IP is different and requires
only the remote system(s) to run a small
utility. The host system can run its usual
operating system completely unchanged
and needs only to be connected (via its
keyboard, video and mouse ports) to the
compact AdderLink IP box.
LOC REM VNC 100 LNK PWR
IP network/Internet
The IP port allows direct
connection to an Ethernet-based
local network and from there
onto the wider Internet, as
required.
Main KVM connection
Power switch
Alternatively, the robust
AdderLink IP security system will
allow direct connection to the
outside world.
It is this external connection to the
AdderLink IP that keeps the remote user
in control. Even in the midst of a system
crash, the remote user can still view the
host’s condition as if sitting next to it.
Additionally, when the power switch
option is employed, a host system can be
remotely rebooted, no matter how badly
it has locked-up.
OR
Optional power control
AdderLink IP provides the
opportunity to attach one
or more power switches.
These control the supply
to the host system(s) and
allow the remote user to
hard reset any system that
has suffered a failure.
KVM switch
One host or many
AdderLink IP really starts to excel when
it is hooked to a suitable KVM switch.
Then its robust, secure and adaptable
operation is available across a multitude
of systems.
On its own, the AdderLink IP provides remote
access to one host computer system. However,
when linked to a suitable KVM switch, the
remote user(s) can easily control a multitude of
systems.
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AdderView IP features - front and rear
Considering its capabilities, the AdderView IP is supplied within a remarkably
compact casing. Measuring just 198mm x 120mm x 43mm, it occupies just half
of a single (1U) rack space and provides most of its connectors at the rear face.
The smart front face features the IP network port and the operation indicators.
Created through partnership
The AdderLink IP is the result of a creative
partnership between two companies that are
leaders in their respective markets:
Power control port
Optionally use this port
to control one or more
power switches. These
allow the remote user to
take full control of the
host system(s).
Modem port
Adder Technology Limited are renowned
worldwide for their professional KVM
switching hardware.
Optionally use this port to
attach either a standard
modem or an ISDN adapter.
This feature provides an
alternative, direct-dial, remote
link into the AdderLink IP.
IP network port
This intelligent Ethernet
port can automatically
sense whether it is
attached to a 10Mb or
100Mb network.
Power input
Connect
the supplied
power
RealVNC are creators of remote control
software for a wide variety of computer
systems. Speed, simplicity and security
are their particular strengths.
adapter here.
COM2
POWER
CONTROL
COM1
MODEM
INDOOR USE ONLY
5V
LOC REM VNC 100 LNK PWR
1
ON
2
2A
Indicators
Configuration
switches
Used for flash
upgrades and
total reset
functions. They
are not required
under normal
circumstances.
KVM console
Computer/KVM Switch
These six indicators clearly show the key aspects of operation:
• LOC Keyboard or mouse data is being received from the local console.
• REM Keyboard or mouse data is being received from a remote viewer.
• VNC Indicates that a remote viewer is connected and active.
• 100 Indicates the Ethernet network speed (10/100Mbs).
• LNK Network link and activity indication.
Connect a keyboard, video
monitor and a mouse to these
three connectors. These allow
you to perform the initial
configuration of the AdderLink
IP. Additionally, you can use these
to locally control the connected
computer(s).
Link these connectors to the
keyboard, video and mouse ports of
the device to be remotely controlled,
either a single computer or a KVM
switch. The USB port on the right
is for future expansion and is not
currently used.
• PWR Power indicator.
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What’s in the box
What you may additionally need
Double unit rack brackets
Includes twelve screws
Part number: RMK-ALIP-DUAL
AdderLink IP
LO
RE
VN
100
LNK
PWR
Single unit rack brackets
Includes four screws
Part number: RMK-ALIP
CD-ROM
KVM cables
One set per connected computer
Part number: VKVM-xM
(where x is the cable length in
metres: 1, 2, 5 or 10)
Power supply
and country-
specific power
lead
Four Self-adhesive
rubber feet
CCUSB converter
Required to connect with computers
that use a USB port to connect their
keyboard and mouse
Part number: CCUSB-xM
(where x is the cable length in metres:
2, 5 or 10)
KVM cable set
CCSUN converter
Required to connect Sun computers
that use a mini-DIN port to connect
their keyboard and mouse
Part number: CCSUN-xM
(where x is the cable length in metres:
2, 5 or 10)
Slave power switches for connection to AdderView IP
PS/2 to AT-style keyboard converter
or master power switch (part number: EPS-S8)
(part number: VSA3)
Master power switch for connection to AdderView IP or
PS/2 to 9-pin serial mouse converter
standalone Ethernet operation (part number: EPS-M8)
(part number: VSA1)
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Installation
Mounting
AdderLink IP offers three main mounting methods:
• Supplied four self-adhesive rubber feet
• Optional single unit rack brackets
• Optional double unit rack brackets
Single unit rack brackets
These two brackets (plus four screws), extend the
size of the AdderLink IP so that it fills the full
width of a 1U rack slot.
5V
COM2
POWER
1
CONTRO
2.5A
ON
2
L
INDOOR
USE
ONL
Y
KVM
CONSOLE
COM1
MODEM
COMPUTER
/
KVM
SWITCH
5V
COM2
POWE
1
CONTROL
2.5A
O
2
N
R
INDOOR
USE
ONL
Y
KVM
CONSOLE
COM1
MODEM
COMPUTER
Double unit rack brackets
/
KVM
SWITCH
This kit comprises four brackets (plus twelve
screws) and allows two AdderLink IP
units to be connected side by side
and fitted into a 1U rack slot.
5V
COM2
POWE
CONTROL
R
1
COM1
2.5A
ON
2
MODEM
INDOOR
USE
ONL
Y
KVM
CONSOLE
5V
COM1
COM2
MODE
M
POWER
1
CONTRO
2.5A
ON
2
COMPUTER
L
/
KVM
INDOOR
SWITCH
USE
ON
L
Y
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Host computer or KVM switch
Connections
The AdderView IP can either connect directly to a single host computer or to
range of hosts via one or more KVM switches.
Installation of the AdderLink IP involves a number of basic
connections to some or all of the following items:
To connect a host computer or KVM switch
1 Ensure that power is disconnected from the AdderLink IP and the computer
or KVM switch to be connected.
• Host computer or KVM switch
ð
(Note: If it is not possible to switch off devices prior to connection, then
a ‘Hot plug’ procedure is available – see the Hot plugging and mouse
restoration section for more details).
2 Connect the plugs at one end of a KVM cable set to the keyboard, video
and mouse sockets of the computer or KVM switch (for mouse plug
Monitor (video)
Keyboard
Blue
Purple
Mouse
or
Mid green
3 Connect the plugs at the other end of the KVM cable set to the corresponding
sockets, collectively labelled as ‘COMPUTER/KVM SWITCH’, at the rear of the
AdderLink IP.
INDOOR
USE
ONL
Y
KVM
CONSOLE
COM1
MODE
M
COMPUTER
/
KVM
SWITCH
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Local keyboard, video monitor and mouse
IP network port
A locally connected keyboard, video monitor and mouse are required during the
initial configuration. These are also useful during normal use to allow quick local
control of any connected host computers.
The AdderLink IP provides an autosensing Ethernet IP port that can operate at
10 or 100Mbps, according to the network speed. The AdderLink IP is designed
to reside quite easily at any part of your network:
• It can be placed within the local network, behind any firewall/router
connections to the Internet, or
To connect a local keyboard, video monitor and mouse
1 Position a suitable keyboard, video monitor and mouse in the vicinity of the
AdderLink IP such that their cables will easily reach.
• It can be placed externally to the local network, on a separate sub-network
or with an open Internet connection.
2 Connect the keyboard, video monitor and mouse plugs to the sockets,
collectively labelled as ‘KVM CONSOLE’, at the rear of the AdderLink IP.
Wherever in the network the AdderLink IP is situated, you will need to
determine certain configuration issues such as address allocation and/or firewall
the Configuration chapter for more details.
IMPORTANT: When the AdderLink IP is accessible from the public Internet or dial
5V
To connect the IP network port
COM2
POWER
1
CONTROL
ON
2
1 Depending upon where in the network the AdderLink IP is being connected,
run a category 5e or 6 cable from the appropriate hub or router to the
AdderLink IP.
2A
INDOOR
USE
2 Connect the plug of the category 5e or 6 cable into the IP port on the front
panel of the AdderLink IP.
ONL
Y
KVM
CONSOLE
LO
RE
VN
From mouse
From keyboard
100
LNK
PWR
From video monitor
3 Configure the network settings as appropriate to the position of the
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Modem/ISDN port
Power supply connection
The AdderLink IP provides a serial port specifically for you to connect either a
modem or ISDN terminal adapter. This can be used as a primary, secondary or
backup access port for remote systems, as best suits your overall configuration.
The AdderLink IP is supplied with a single power supply and an appropriate
country-specific IEC power lead. There is no on/off switch so operation begins as
soon as the power supply is connected.
IMPORTANT: When the AdderLink IP is accessible from the public Internet or dial
To connect the power supply
1 Connect the low voltage output connector from the power supply unit to
the power socket on the rear panel of the AdderLink IP.
To connect a modem or ISDN port
1 If possible, disconnect power from the AdderLink IP and the modem or ISDN
adapter.
2 Connect a suitable serial modem (non-crossover) cable to the serial port on
the modem/ISDN adapter.
3 Connect the other end of the serial cable to the port labelled COM1 at the
rear of the AdderLink IP.
5V
COM2
USE
ONL
POWER
1
CONTROL
ON
2
2A
Y
KVM
CONSOLE
INDOO
KVM
COM1
CONSOLE
MODE
M
COMPUTER
/
KVM
SWITCH
2 Connect the IEC connector of the supplied country-specific power lead to
the socket of the power supply.
3 Connect the power lead to a nearby main supply socket.
Note: The default serial port speed is 115200K and a standard Hayes-compatible
auto-answer string is sent during startup. The default startup string is
‘ATZHS0=1’. Both the serial port speed and startup string settings can easily be
more details. The other serial settings are fixed at: No parity, 8 bit word and 1
stop bit.
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To connect and address the switch boxes
Note: The AdderLink IP can be powered on during this procedure, however, the
switch boxes should be switched off.
Power control port
The AdderLink IP provides a serial port for connection to one or more optional
power control units. This allows you to control the mains power being supplied
to the connected host(s) so that an authorised remote user can, if necessary,
perform a complete cold reboot on a failed host system.
1 Mount up to four switch boxes in positions where they are close to the
computers that they will control and not too distant from the AdderLink IP
(preferably within 2.5 metres).
The control connector of the first power switch is connected, via serial cable,
to the rear panel of the AdderLink IP. Any additional power switches are then
connected via a ‘daisy-chain’ arrangement to the first power switch. Each power
switch box is then given a unique address and access to each power port (8
ports on each power switch box) is gained using a combination of the switch
box address and the port number.
7 for specification). Connect the RJ9 plug to the socket marked ‘IN’ on the
first switch box. Connect the other end to the socket marked ‘COM2’ on
the AdderLink IP.
‘Daisy-chain’
control
connections
Power
switch
boxes
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5V
COM2
POWER
1
CONTROL
2.5A
ON
2
IN
Box 1
Box 2
Box 3
Box 4
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
8
OUT
IN
KVM
CONSOLE
IN
OUT
Power to computer
Box 2, port 6 - address: 26
3 For each of the remaining switch boxes (if used), use a serial cable with RJ9
end to the socket marked ‘OUT’ of the previous box and the other end to
the socket marked ‘IN’ of the next box.
IN
OUT
4 Set the addressing switches on each switch
Box Switch 1 Switch 2
IN
box using the two micro switches marked
1
2
3
4
Off
On
Off
On
Off
Off
On
On
‘Slct’ on the front panel. The box connected
directly to the AdderLink IP is Box 1 and so
on, down the daisy-chain line to Box 4 at
the end.
The power ports are connected to the power inputs of each computer and the
power switch box(es) are then connected to a mains power supply.
IMPORTANT: Power switching devices have a maximum current rating. It is
essential to ensure that the total current drawn by the equipment connected
to the power switching device does not exceed the current rating of the power
switching device. You must also ensure that the current drawn from any mains
socket does not exceed the current rating of the mains socket.
5 Connect IEC to IEC power leads between
each port and the power input socket
of each computer that requires power
switching. Carefully note to which power
Off = switch upwards
On = switch downwards
Switch 1 is on the left side
ports, on which boxes, each computer is connected. If server systems have
multiple power inputs, then each input must be connected via separate
ports, which can be on the same, or different boxes.
Setting up, configuring and using power switching requires three main steps:
• Connect and address the switch boxes
ð
6 Connect each box to a suitable mains power input.
Now proceed to the configuration stage covered in the Power switching
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Configuration
Initial configuration
The initial configuration occurs as two distinct parts:
Part 2 – Remote configuration
Part 1 – Local configuration
This part of the configuration takes place using a remote connection
(network or dial-up modem/ISDN). It allows fine tuning of the part 1
configuration items plus the creation of multiple user accounts and
This part of the configuration takes place using the locally
connected keyboard and video monitor. It allows you to set up
key basic details, network essentials, modem/ISDN parameters
and security key creation.
Part 1 – Local configuration
When you switch on the AdderLink IP unit for the first time it will
take you (using the locally connected keyboard and video monitor)
through a set up sequence consisting of four main screens:
AdderLink IP Unit Config
AdderLink IP Modem Config
AdderLink IP Network Config
MAC Address 00:0F:58:00:00:04
Hardware
Firmware
Rev
Version 1.4
1
AdderLink IP Secure Keys
Server IP
Client IP
Baud Rate
Init String
192.168.3.1
192.168.3.2
115200
Keybd Layout UK
Admin Passwd
Unit Name
Use DHCP
IP Address
Net Mask
Gateway
No
Random data is required to
generate encryption keys
for secure VNC access
Please move the mouse or
press keys until the bar
becomes full
192.168.42.154
255.255.255.0
ATZHS0=1
Hot Keys
Screensaver
Time
Ctrl+Alt
10 mins
>
VNC Port
HTTP Port
5900
80
>
>
21
15
:
27
Apr
:
31
2004
Initialize Port
Restore Defaults
Date
Encryption
Prefer Off
Save
Save
Save
Requires you to configure the
various key aspects of the IP
network port addressing.
Allows you to optionally alter the
current settings for the serial port that
is used to connect a modem or ISDN
terminal adapter. The IP addresses are
used to emulate a two-port network
connection and are suitable for most
situations.
Allows you to determine a mixture
of basic and fundamental setup
details such as the keyboard layout,
admin password, time and date.
This screen uses your mouse
movements or keyboard inputs
to create random data. This
unpredictable information is then
combined with several other
factors to develop the basis of the
encryption keys that are used to
establish secure remote links.
Problems?
Controlling the local configuration menus
The local menus use only the keyboard. Use the
keyboard arrow keys to move the green highlight
indicator to the required position. Then, either type the
required information or use the left and right arrows to
change multiple choice items, as appropriate.
continued
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To perform the initial local configuration
1 Edit the Unit config screen. The key elements here are:
3 If necessary, edit the Modem config screen.
AdderLink IP Unit Config
Admin password
AdderLink IP Modem Config
Enter a password of at least
six characters that has a mix
of letters and numerals. The
background colour provides
an indication of password
suitability and is initially red
to indicate that the password
is not sufficient. When a
password with reasonable
strength has been entered it
changes to blue.
The default items here are
perfectly adequate for the
majority of modem and ISDN
terminal adapter installations.
Hardware
Firmware
Keybd Layout UK
Admin Passwd
Unit Name
Hot Keys
Screensaver
Time
Rev 1
Version 1.4
Server IP
Client IP
Baud Rate
Init String
192.168.3.1
192.168.3.2
115200
The Server IP and Client IP
addresses are used to form
an isolated two-device PPP
network connection via the
dial up link. Their settings are
not related to any other ‘real’
network settings within the
AdderLink IP.
ATZHS0=1
Ctrl+Alt
10 mins
21 : 27 : 31
15
Initialize Port
Restore Defaults
Date
Encryption
Apr
2004
Prefer Off
Time and Date
Save
Set these correctly as all entries
in the activity log are time
stamped using them.
Save
When all items are correct, select the Save option to display the next screen.
4 Move the mouse and enter changing key sequences within this screen.
Encryption
Arrange this setting according
to your security requirements.
a description of the issues and
the settings.
When all items are correct, select the Save option to display the next screen.
AdderLink IP Secure Keys
Random data is required to
generate encryption keys
for secure VNC access
Please move the mouse or
press keys until the bar
becomes full
2 Edit the Network config screen. The key elements here are:
Use DHCP/IP address/Net
Mask/Gateway
You need to either set the
DHCP option to ‘Yes’ or
AdderLink IP Network Config
MAC Address 00:0F:58:00:00:04
manually enter a valid IP
Use DHCP
IP Address
Net Mask
Gateway
No
address, Net mask and
issues for more details.
192.168.42.154
255.255.255.0
VNC and HTTP ports
With every mouse move and keypress, the single dash will move across the
screen (unless the same key is pressed repeatedly). Periodically, a new star
character will be added to the bar as the random data is accepted as part
of the new encryption key. When the bar is full, the final encryption keys
for your AdderLink IP will be created – this process takes roughly 30 to 40
seconds.
VNC Port
HTTP Port
5900
80
These should remain set to
5900 and 80, respectively,
unless they clash with an
existing setup within the
network. See Networking
issues for more details.
Save
continued
When all items are correct, select the Save option to display the next screen.
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5 Once the secure keys have been calculated the AdderLink IP will restart and
present a standard logon screen.
Encryption settings
The AdderLink IP offers a great deal of flexibility in its configuration and this
extends equally to its encryption settings. Due to the variety and of situations in
which it might be used and the range of viewer applications that need to view
it, a number of settings are available that might not make perfect sense at first
glance. However, these settings should allow you to configure the AdderLink IP
and the viewers to operate as required.
AdderLink IP Logon
At this stage the username will
Factors to consider when setting these options might be:
• Do all of the connections and operations require encryption?
• Will some users be using older VNC viewer versions?
be ‘admin’ and the password
will be whatever you entered
in the first setup screen.
Username:
Password:
AdderLink IP encryption settings
The AdderLink IP configuration page offers three encryption settings:
• Always on - This setting will force all viewers to use encryption. Note:
This setting will preclude any VNC viewer versions that do not support
encryption.
Once the username and password have been accepted, the screen should
now show the host computer screen (or, if none is connected, a blank image).
• Prefer off - This setting does not enforce encryption unless a viewer
specifically requests it. If a viewer has its ‘Let server choose’ setting, then an
un-encrypted link will be set up.
6 To view the options menu: Press
(if the standard hotkeys were altered, use the new hotkeys plus C)
• Prefer on - This setting generally enforces encryption unless an earlier
viewer version is unable to support it, in which case the link will be un-
encrypted. If a viewer has its ‘Let server choose’ setting, then the link will be
encrypted.
Logoff
Select to close your current
session and display the
screensaver.
AdderLink IP Control
Restore mouse functions
Select to revive a mouse
that has ceased to function
correctly. See Hot plugging
details.
Logoff
Restore Mouse Functions
Configuration
Viewer encryption settings
The web browser viewers and VNC viewers (of level 4.0b5S or higher) offer four
encryption settings:
• Always on - This setting will ensure that the link is encrypted, regardless of
Access Mode Shared
the AdderLink IP encryption setting.
Configuration
Host
Email server
Select to gain access to the
Unit, Network and Modem
configuration screens. Within
here you can also reset the
AdderLink IP to its initial state.
• Let server choose - This setting will follow the configuration of the
AdderLink IP. If the AdderLink IP has ‘Always on’ or ‘Prefer on’ set, then the
link will be encrypted. If the ‘Prefer off’ setting is selected at the AdderLink
IP, then the link will not be encrypted.
Return To Host
Access mode
Host
• Prefer off - This setting will configure an un-encrypted link if the AdderLink
Allows you to choose between Indicates the currently selected
IP will allow it, otherwise it will be encrypted.
Shared mode (where all other
logged on users can see your
operations) and Private mode
(where the screens of all other
users are blanked).
host computer and allows you
to select others. This item will
be blank unless host details
have been set within the
• Prefer on - If the AdderLink IP allows it, this setting will configure an
encrypted link, otherwise it will be un-encrypted.
Return to host
Quits the menu and returns to
the host screen.
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Hot plugging and mouse restoration
It is strongly recommended that you switch off a host computer before
attempting to connect it to the AdderLink IP. However, if this is not possible
then you need to ‘hot plug’ the computer while it is still running. There
is not normally a danger of damage to the computer, however, when
mouse communications are interrupted, often they fail to re-initialise
when reconnected. The AdderLink IP provides a feature to reinstate mouse
communications once the necessary connections have been made.
To restore mouse operation when hot plugging:
1 Using a KVM cable set, carefully make the keyboard, monitor and mouse
connections between the host computer and the ports collectively labelled
COMPUTER/KVM SWITCH on the AdderLink IP.
2 Using a keyboard and monitor directly connected to the AdderLink IP, log on
and then press
to view the options menu. More about hotkeys
3 Select the ‘Restore mouse functions’ option to display:
There are two main types of data formats used by current PC mice, these are
the older ‘PS/2’ format and the more recent ‘IntelliMouse®’ format introduced
by Microsoft. These use slightly different data arrangements and it is important
to know which type was being used before you hot-plugged the computer to
the AdderLink IP. The previous setting depends both on the type of mouse and
the type of driver, as various combinations of PS/2 and IntelliMouse are possible.
Using the incorrect restore function may produce unpredictable results and
require the computer to be re-booted.
AdderLink IP Restore Mouse
Restore PS/2 Mouse
Restore IntelliMouse
Back
Which restore setting do I use?
The general rule is that unless both the mouse and the driver are both
IntelliMouse compatible then you need to restore the mouse as ‘PS/2’. An
IntelliMouse can operate in either mode, whereas a PS/2 mouse cannot.
Recognising an IntelliMouse-style mouse
4 Select one of the following options:
The IntelliMouse format was introduced to support, among other features, the
scroll wheel function. If the mouse has a scroll wheel, then it is likely to support
the IntelliMouse format. If it is a Microsoft-branded mouse, then it will usually
state that it is an IntelliMouse on its underside label.
• Restore Standard Mouse – if PS/2 mode is required, or
• Restore IntelliMouse – if IntelliMouse mode is required.
5 Select the ‘Return to host’ option.
6 Move the mouse a short distance and check for appropriate on-screen
cursor movement. If the mouse cursor darts erratically around the screen,
then cease moving the mouse. This is an indication that the chosen restore
function is incorrect. Try again using the other restore function.
Recognising an IntelliMouse driver
Before hot plugging to the AdderLink IP (or afterwards using only keyboard
control), access the Windows Control Panel of the computer and select either
the Mouse option (on Windows NT, 2000 and XP) or the System option (on
Windows 95, 98, ME). Look for the name of the driver, which will usually
include the words PS/2 or IntelliMouse.
Note: The restore functions predict the likely mouse resolution settings but
may not restore the exact speed or sensitivity settings that were originally
set.
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Resetting the configuration
The AdderLink IP asks for an unknown admin password
This may occur if the AdderLink IP has been previously configured. If the existing
admin password cannot be discovered, then your only recourse is to perform a
factory reset.
The AdderLink IP does not display the configuration sequence
If the AdderLink IP has been previously configured it may not automatically
display the first of the setup screens. In this case you have two options, either:
To invoke a configuration reset by switch
• Reset the configuration:
1 Remove power from the AdderLink IP unit.
To invoke a configuration reset by main menu
1 Using the locally connected keyboard and screen, log on as the admin user.
2 At the rear of the AdderLink IP, adjacent to the power input socket, click
mini switch 1 to its ON (down) position.
2 Select the ‘Configuration’ option.
3 Re-apply power to the AdderLink IP. On the locally connected monitor you
should see a Maintenance menu:
AdderLink IP Configuration
AdderLink IP Maintenance
Unit Configuration
Network Configuration
Modem Configuration
To upgrade unit, visit:
Configure Network
Reset Configuration
Reset Configuration
Back
Put option switch 1 up to
return to normal operation.
3 Highlight the ‘Reset configuration’ option and press
.
A warning screen will be displayed, select the RESET option and press
.
4 Select the ‘Reset configuration’ option.
A warning screen will be displayed. Select the RESET option and press
.
AdderLink IP Reset Config
AdderLink IP Reset Config
WARNING: Continuing will cause
your existing configuration to
be erased.
WARNING: Continuing will cause
your existing configuration to
be erased.
The unit will then reset and
require re-configuring before
it can be used.
The unit will then reset and
require re-configuring before
it can be used.
DO YOU WISH TO CONTINUE?
DO YOU WISH TO CONTINUE?
RESET
Cancel
RESET
Cancel
5 Remove power, return the mini switch 1 to its OFF position and then re-
apply power. The locally connected monitor should display the first screen of
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Part 2 – Remote configuration
To perform the remote configuration
The second part of the configuration requires you to log into the AdderLink
IP from a system via either a network connection or a dial-up connection (via
modem or ISDN). In either case there are two types of access applications that
you can use:
1 Use either the VNC viewer or a standard web browser to make remote
more details.
2 If the username entry is not blanked out, enter ‘admin’. Then enter the
password that was set during the local configuration stage (if no password
• The VNC viewer – a small application supplied on the CD-ROM or
downloadable from the Adder and RealVNC websites or even downloadable
from the AdderLink IP itself.
was set, then just press
). Once logged in, the AdderLink IP will show the
video output from the host system (if one is connected), or otherwise a ‘No
Signal’ message.
or
• A standard browser that supports Java – As soon as a web browser makes
contact, the AdderLink IP downloads a Java application to it. This allows a
viewer window to be opened and operation to commence just as it would
with the VNC viewer application.
3 Click the Configure button in the top right hand corner of the window to
display the configuration menu
ò
Allows you to create and manage up to sixteen separate user
accounts, each with separate access permissions.
Allows you to alter both basic and fundamental
settings within the AdderLink IP.
Here you can alter any of the existing network settings plus
you can take advantage of the IP access control feature that
lets you to specifically include or exclude certain addresses or
networks.
Lets you setup or alter the details concerning
the modem and power control serial ports.
Allows you to configure user access, hot key switching and
power control codes for up to 32 host systems that may be
connected to the AdderLink IP via KVM switch units.
Shaded items signify
options that are not
available at the local
configuration stage.
Provides various details about the user
activity on the AdderLink IP.
Many of the options within the configuration menu duplicate those
that were set (or are available) in the local configuration. However,
there are numerous other settings that are only available here.
For more information about each menu option, please see Appendix 5
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Placing AdderLink IP behind a firewall
Networking issues
A possible point of contention between the AdderLink IP and a firewall can
occasionally arise over the use of IP ports. Every port through the firewall represents
a potential point of attack from outside and so it is advisable to minimise the
number of open ports. The AdderLink IP usually uses two separate port numbers,
however, these are easily changeable and can even be combined into a single port.
Thanks to its robust security the AdderLink IP offers you great flexibility in how
it integrates into an existing network structure. The AdderLink IP is designed
to reside either on an internal network, behind a firewall/router or alternatively
with its own direct Internet connection.
IMPORTANT: The correct configuration of routers and firewalls requires
advanced networking skills and intimate knowledge of the particular network.
Adder Technology cannot provide specific advice on how to configure your
network devices and strongly recommend that such tasks are carried out by a
qualified professional.
Positioning AdderLink IP in the network
Every network setup is different and great care needs to be taken when
introducing a powerful device such as the AdderLink IP into an existing
configuration. A common cause of potential problems can be in clashes with
firewall configurations. For this reason the AdderLink IP is designed to be
intelligent, flexible and secure. With the minimum of effort the AdderLink IP
can reside either behind the firewall or alongside with its own separate Internet
connection.
Port settings
• Port 80 for users making contact with a web browser, and
• Port 5900 for those using the VNC viewer.
When these port numbers are used, VNC viewers and web browsers will locate
the AdderLink IP correctly using only its network address. The firewall/router
must be informed to transfer traffic, requesting these port numbers, through to
the AdderLink IP.
Internet
Internet
When a web server is also on the local network
Firewall/
router
Port 80 is the standard port used by web (HTTP) servers. If the AdderLink IP is
situated within a local network that also includes a web server or any other device
serving port 80, then the HTTP port number of the AdderLink IP must be changed.
Firewall/
router
When you change the HTTP port to anything other than 80, then each remote
browser user will need to specify the port address as well as the IP address. For
instance, if you set the HTTP port to ‘200’ and the IP address is ‘192.168.47.10’
then browser users will need to enter:
LOC REM VNC 100 LNK PWR
LOC REM VNC 100 LNK PWR
Local
network
connection
KVM link to
host system
(Note the single colon that separates the IP address and the port number).
KVM link to
host system
Local
network
The firewall/router would also need to be informed to transfer all traffic to the
new port number through to the AdderLink IP.
connection
If you need to change the VNC port number
If you change the VNC port to anything other than 5900 (or 80), then
each VNC viewer user will need to specify the port address as well as the IP
address. For instance, if you set the VNC port to ‘11590’ and the IP address is
‘192.168.47.10’ then VNC viewer users will need to enter:
AdderLink IP situated
behind the firewall
AdderLink IP situated
alongside the firewall
192.168.47.10::11500
IMPORTANT: When the AdderLink IP is accessible from the public Internet or dial
(Note the double colons that separate the IP address and port number).
The firewall/router would also need to be informed to transfer all traffic to the
new port number through to the AdderLink IP.
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Addressing
To discover a DHCP-allocated IP address
When the AdderLink IP is situated within the local network, you will need to give
it an appropriate local IP address and IP network mask. This is achieved most
easily using the DHCP server option which will apply these details automatically.
If a DHCP server is not available on the network, then these details need to be
applied manually in accordance with the network administrator.
Once a DHCP server has allocated an IP address, you will need to know it in
order to access the AdderLink IP via a network connection. To discover the
allocated IP address:
‘Use DHCP’ option to ‘Yes’ and select ‘Save’. Once the page is saved, the
AdderLink IP will contact the DHCP server and obtain a new address.
The firewall/router must then be informed to route incoming requests to port
5900 or port 80 (if available) through to the local address being used by the
AdderLink IP.
2 Re-enter the same ‘Network configuration’ screen where the new IP address
and network mask should be displayed.
DNS addressing
As with any other network device, you can arrange for your AdderLink IP to be
accessible using a name, rather than an IP address. This can be achieved in two
main ways:
Remote user with VNC
viewer accesses IP
address: 129.7.1.10 and
automatically uses port
5900.
• For small networks that do not have a DNS (Domain Name System) server,
edit the ‘hosts’ files on the appropriate remote systems. Using the hosts file,
you can manually link the AdderLink IP’s address to the required name.
Internet
• For larger networks, declare the IP address and required name to the DNS
server of your local network.
The actual steps required to achieve either of these options are beyond the
scope of this document.
Firewall/router address:
129.7.1.10
The firewall routes the
request from the VNC viewer
on port 5900 through to the
AdderLink IP at local address
192.168.0.3
AdderLink IP has a local
address and net mask, i.e.
LOC REM VNC 100 LNK PWR
IP address: 192.168.0.3
Net mask: 255.255.255.0
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Placing AdderLink IP alongside the firewall
AdderLink IP is built from the ground-up to be secure. It employs a sophisticated
128bit public/private key system that has been rigorously analysed and found
to be highly secure (a security white paper is available upon request from Adder
Technology Ltd). Therefore, you can position the AdderLink IP alongside the
firewall and control hosts that are also IP connected within the local network.
Security can be further improved by using the following suggestions:
• Use a KVM switch with On-Screen-Display driven security access and an
auto-logout (after inactivity) feature to provide a second level of security. KVM
switches such as the AdderView Matrix or SmartView XPro are recommended.
• Place the AdderLink IP behind a firewall and use port the numbers to route
the VNC network traffic to an internal IP address.
IMPORTANT: If you make the AdderLink IP accessible from the public Internet
or from a modem, care should be taken to ensure that the maximum security
available is activated. You are strongly advised to enable encryption and use
strong password. Security may be further improved by restricting client IP
addresses, using a non-standard port number for access or limiting remote
access to dial up connections only.
• Review the activity log from time to time to check for unauthorized use.
• Lock your server consoles after they have been used.
A security white paper that gives further details is available upon request from
Adder Technology Limited.
Ports
Ensuring sufficient security
In this configuration there should be no constraints on the port numbers
because the AdderLink IP will probably be the only device at that IP address.
Therefore, maintain the HTTP port as 80 and the VNC port as 5900.
The security capabilities offered by the AdderLink IP are only truly effective when
they are correctly used. An open or weak password or unencrypted link can
cause security loopholes and opportunities for potential intruders. For network
links in general and direct Internet connections in particular, you should carefully
consider and implement the following:
Addressing
When the AdderLink IP is situated alongside the firewall, it will require a public
static IP address (i.e. one provided by your Internet service provider).
• Ensure that encryption is enabled.
More addressing information:
• Ensure that you have selected secure passwords with at least 8 characters
and a mixture of upper and lower case and numeric characters.
• Reserve the admin password for administration use only and use a non-
admin user profile for day-to-day access.
• Use the latest Secure VNC viewer (this has more in-built security than is
• Restrict the range of IP addresses that are allowed to access the AdderLink IP
• Add a further level of inherent security by restricting access only via modem
or ISDN dialup.
• Ensure that the computer accessing the AdderLink is clean of viruses and
spyware and has up-to-date firewall and anti-virus software loaded that is
appropriately configured.
• Avoid accessing the AdderLink from public computers.
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Power switching configuration
Power control sequences
Power switch configuration comprises two main steps:
Note: The settings given below are for the EPS-S8 power switch - other power
switches may require different settings. Please refer to your power switch
documentation for details about codes required by other power switches.
• Configure the COM2 serial port to the same speed as used by the power
The structure of each power sequence (OFF and ON) is as follows:
• Configure power ON and OFF strings for each relevant host computer.
For each power port there needs to be a valid ‘Power ON string’ and similarly an
appropriate ‘Power OFF string’. In each case, the strings are a short sequence of
characters that combine a port address and a power on or off value.
Pxy=z\0D
Where:
If a particular computer has more than one power input (and thus requires an
equivalent number of power ports to control them), collections of strings can be
combined to switch all of the required ports together as a group.
x is the switch box number,
y is the power port number,
z is ‘0’ for OFF or ‘1’ for ON, and
\0D represents Enter (or Carriage return).
To configure the power sequences for each host computer
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
Example 1
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Host configuration’ option.
To switch ON port 5 of switch box 2, the code would be as follows:
• Power sequence:
P25=1\0D
4 Click one of the 32 host entry slots to display a Host configuration dialog:
Example 2
To switch OFF port 8 of switch box 3, the code would be as follows:
• Power sequence: P38=0\0D
Operation chapter.
To control two or more ports simultaneously
You can control up to four power ports using a single sequence. You merely
use the same command structure, as shown above, repeated on the same line
for each port. A 1 second delay is automatically inserted by the AdderLink IP
between each port control code.
6 Enter the Power control sequences in the Power On and Power Off fields
ð
7 Click OK to close the dialog and then click the Save button in the main Host
Configuration window to store the details.
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Performing a flash upgrade
AdderLink IP is fully reconfigurable via flash upgrade
To perform a flash upgrade
configuration page to determine the current firmware version of the
AdderLink IP unit.
2 Visit the Adder website, locate the downloads section and select an
AdderLink IP firmware revision that is later than the one currently installed.
Configure network option
MAC address
3 Power down the AdderLink IP unit. At the rear of the unit, adjacent to the
power input socket, click mini switch 1 to its ON (down) position.
Media Access Control address – this is
the unique and unchangeable code that
was hard coded within your AdderLink
IP unit when it was built. It consists of six
2-digit hexadecimal (base 16) numbers
separated by colons. A section of the
MAC address identifies Adder Technology
as the manufacturer, while the remainder
is effectively the unique electronic serial
number of your particular unit.
AdderLink IP Network Config
MAC Address 00:0F:58:00:00:04
4 Re-apply power to the AdderLink IP. On the locally connected monitor you
should see a Maintenance menu:
Use DHCP
IP Address
Net Mask
Gateway
No
192.168.42.154
255.255.255.0
AdderLink IP Maintenance
To upgrade unit, visit:
Use DHCP
OK
When this option is selected, your
AdderLink IP will attempt to locate a
DHCP server on the network. If such a
server is located, it will supply three
things to the AdderLink IP: an IP address,
an IP network mask (also known as a
Subnet mask) and a Gateway address.
Current network
Configure Network
address of the
AdderLink IP
Reset Configuration
Put option switch 1 up to
return to normal operation.
IP address
This is the identity of the AdderLink
IP within a network. It can either
be entered manually or configured
automatically using the DHCP option.
When the DHCP option is enabled, this
entry is greyed out.
The Maintenance menu should display the current network address
of the AdderLink IP.
• If the current network address is incorrect then select
the ‘Configure network’ option to change it:
Net mask
Also often called the ‘subnet-mask’, this
value is used alongside the IP address
to help define a smaller collection (or
subnet) of devices on a network. In
this way a distinction is made between
locally connected devices and ones that
are reachable elsewhere, such as on the
wider Internet.
5 Use the web browser (not the VNC viewer) on the previously used remote
system, connect to the network address shown in the local Maintenance
menu and log on as the admin user.
6 Follow the on screen instructions to upload the firmware file (previously
obtained from the Adder site) to the AdderLink IP.
IMPORTANT: Wait until the upgrade is complete.
Gateway
7 When the upload is complete and confirmed on screen, log off the remote
system and then power down the AdderLink IP.
This is the address of the device that
links the local network (to which the
AdderLink IP is connected) to another
network such as the Internet. Usually
this is a network switch or router and
it will be used whenever a device to be
contacted lies outside the local network.
8 At the rear of the unit, return the mini switch 1 to its OFF position and then
re-apply power.
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Operation
To view the local control menu
1 Press and hold the hotkeys (usually
release all three keys.
Connecting to the AdderLink IP
The AdderLink IP offers you three ways to connect:
• Local connection,
and
), then press
and finally
Note: The
and
keys when pressed in combination are called
...and two types of viewer:
‘hotkeys’ and they signal to the AdderLink IP that you wish to control it,
rather than the host computer. However, if these particular hotkeys clash
with another device or program, then your administrator may change them
to a different combination. If the
then please contact the system administrator for details.
combination fails to work,
• VNC viewer,
• Standard web browser.
Local connection
AdderLink IP Control
The keyboard, video monitor and mouse connected directly to the AdderLink IP
offer password protected access to the host computer(s).
Logoff
Restore Mouse Functions
Configuration
To make a local connection:
1 Using the keyboard connected directly to the AdderLink IP, press any key to
exit the screensaver and display the logon prompt.
Access Mode Shared
Host
Email server
Return To Host
AdderLink IP Logon
The local control menu contains numerous options, the most useful of which
are:
Username:
Password:
• Access mode - Allows you to select a ‘Private’ mode in order to prevent
other logged on users from viewing your actions on the host computer. Use
and
to change between modes.
Note: For the courtesy of other users, this mode should be used sparingly.
The admin user has the ability to overrule the private setting.
• Host - Where more than one host computer is available via the AdderLink
2 Enter your username and password. Providing you have the correct
permissions, the screen will display the currently selected host computer.
IP, this option allows you to easily switch between them. Use
change between host computers.
and
to
• Return to host - Quits the control menu and displays the host computer
screen.
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Local connection (continued)
Remote connections
From a remote system, you connect to the AdderLink IP using a viewer and a
link. There are two types of viewer and two types of link, which can be used in
any combination.
To avoid the ‘hall of mirrors’ effect
IMPORTANT: Never configure a system so that your viewer is viewing itself.
When controlling a host computer using the locally connected keyboard, video
monitor and mouse, it is possible to use the VNC viewer or a browser (if the host
computer is networked) to create a remote link back to itself. This will set up a
‘hall of mirrors’ effect, where the computer is viewing itself into infinity.
While technically possible, the AdderLink IP unit is not designed to withstand
this treatment and could sustain damage.
OR
OR
LOC REM VNC 100 LNK PWR
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Remote connection by VNC viewer
Remote connection by Web browser
The VNC viewer is a compact application that runs on your remote system and
allows you to view and use the AdderLink IP and its host computer(s). VNC
viewer is readily available from a number of different sources:
the AdderLink IP and its host computer(s). As soon as you make contact with the
AdderLink IP it will begin downloading a small Java application to your browser,
which will be used only for the duration of your connection.
• from the AdderLink IP installation CD
To connect using your Web browser
1 Launch your standard Web browser as usual.
2 In the Address section, type the address of the AdderLink IP as follows:
To connect using the VNC viewer
1 Locate and select the VNC viewer icon
ð
where v.w.x.y is the IP network address, for example 192.168.0.3
A connection details dialog will be displayed:
3 Press
. A connection attempt will be made. In the browser window,
select the ‘Connect using built-in Java VNC viewer’ option to download
a small application that will temporarily empower your browser (on slow
connections the application download can take several tens of seconds to
complete). Once complete, a connection details dialog will be displayed:
Enter the AdderLink IP
address here and click OK
If required, select the
encryption mode - MORE [+]
The previously entered AdderLink
IP address will be shown here
Options button
Provides a range of viewer and connection settings - MORE [+]
If required, select the
encryption mode - MORE [+]
2 In the ‘Server:’ entry, type the address of the AdderLink IP as follows:
Options button
Provides a range of viewer and connection settings - MORE [+]
v.w.x.y
where v.w.x.y is the IP network address, for example 192.168.0.3
4 Make any necessary option/encryption changes and click the OK button
to proceed. Depending on the options selected, you may need to confirm
certain items.
3 Click the OK button. Depending on the options selected, you may need to
confirm certain items. A connection attempt will be made and if successful,
an authentication dialog will be displayed:
5 A second connection attempt will be made and if successful, an
authentication dialog will be displayed:
and show the current host computer. Note: If the Username entry is blanked
out then only admin user account is currently defined and only a password is
required.
and show the current host computer. Note: If the Username entry is blanked
out then only admin user account is currently defined and only a password is
required.
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When using the viewer window
Using the viewer window
The viewer window gives you the ability to view and control the AdderLink IP
and its host computer(s). Its operation is almost identical regardless of whether
you used the VNC viewer or your Web browser to display it.
What is the best screen resolution to use?
The best resolution for your computer is one that is larger than the screen of
the host computer that you are viewing. This will allow you to see everything
without scrolling around, as described next.
The menu bar
How do I navigate around a larger screen?
The viewer window presents a menu bar similar to that shown below. Certain
items within the toolbar are displayed depending upon your access permissions
and/or the AdderLink IP configuration.
If the screen that you are viewing has a larger resolution than your viewing
window you will need to scroll around to see all items. The viewer window
allows you to ‘bump scroll’. This means that when your mouse cursor bumps
against the edge of the screen, the screen image will scroll across automatically.
(VNC viewer only)
Click the VNC
icon to view the
viewer window
options
Displays a menu of
options concerning
keyboard, video and for the current host
mouse operation.
Click to access the
power on/off options
Dialogue area
Indicates your username
and the host system that
you are currently viewing.
This area can also display
other messages.
How do I escape from full screen mode?
Press the F8 button. This button is changeable but is most often set to F8.
computer.
Why is the
This happens when a new host screen is viewed (that has not been viewed
before). Click the button to perform an auto calibration for the screen and
button flashing red?
How do I change between host computers?
The best way to change between host computers is to click the ‘Hosts’ button
How do I remove traces of moved items from the screen?
When you move an item or window across the screen, sometimes it can leave
unsightly trails. These are called artifacts and can be particularly prevalent when
the connection speed is low. To remove artifacts, click the ‘Controls’ button and
Ensures that the Determines the
mouse pointer optimum video and
which you move mouse settings for the
and the mouse
pointer on the
host system
Click to display Allows you
This option is only
available to the
admin user and
provides access
to the main
a list of hosts.
Choose an
entry to
connect to
that host
to choose
between
Shared and
Private access
modes.
currently selected host
computer. This button
will flash red when
a new host screen is
encountered. Click this
button when you first
visit a new screen.
How do I make the most of a slow connection?
The VNC viewer is slightly better suited to slower connections than the browser
viewer when entering the AdderLink IP address during log on.
configuration
menus.
are correctly
synchronised.
computer.
Minimise the Threshold setting
suggests. Tweak this setting manually to ensure the best setting.
Fewer colours
improvement and looks a lot worse.
Rate limit mouse events
When selected, this mode greatly reduces the mouse movement data that are
sent to the host computer. When you move the local mouse, the remote cursor
will catch up roughly once per second.
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Mouse pointers
Host selection
Both viewers use a double mouse cursor to help overcome any delays caused by
slow connections. When you move your mouse you will see two mouse cursors,
a local one that responds immediately to your movements and a second, slower
moving, cursor that represents the current mouse position at the host.
The Hosts button on the menu bar provides the quickest and most efficient way
to switch between host computers. This is because the button is close at hand,
but also because the screen calibration details for each host are reused when
this method of switching is used. The alternative is to use KVM switch hotkey
combinations or the KVM switch on screen display.
For the browser viewer, the local
cursor is a typical arrow:
Note: The Hosts button is displayed only when the
switching details for two or more computers have
been declared within the configuration section by the
admin user.
Local cursor
To select a host
1 Click the Hosts button to display a list of computers.
2 Click the required computer name to view and control it.
Remote host cursor
Configure
This option is displayed only when you are logged on as the ‘admin’ user. When
selected it provides access to a wide range of AdderLink IP settings.
For the VNC viewer, the local
cursor is a dot:
Local dot cursor
Remote host cursor
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Access mode - shared/private
Auto calibrate
Up to five users can be simultaneously logged-on (four remote users plus one
local user) and during normal operation, all are able to see the same view of
the currently selected host. If you need to perform a sensitive task that should
not be viewed by other users, you can change the access mode to Private. This
action blanks the viewer window for all other logged on users.
When you visit a host computer for the very first time, your viewer needs to
determine the optimum video and mouse settings for that particular computer.
The button will remind you to click by flashing red when it encounters a
new computer screen. Performing this step is important because it can help
to decrease unnecessary video information being sent across the link, thus
improving overall performance.
Note: For the courtesy of other users, this mode should be used sparingly. The
admin user has the ability to overrule the private setting.
Once this has been done, providing you use the ‘Hosts’ button to switch
between host computers, the video settings for each machine will be re-used.
To change the access mode
Note: When performing an auto calibration, ensure that the screen image
is static (no moving images) and also that there are no on-screen displays
generated by KVM switches (such as host names or menus). This is because they
may confuse the calculation and can result in a lower overall performance level.
For the mouse calibration part, ensure that there are no application windows
located around the upper left corner of the screen. This is because as the mouse
calibration takes place, the cursor may change (to match the application as it
skims across the window) and this may confuse the calculation. Also ensure that
the host system does not have the mouse cursor trails option enabled.
1 Click one of the arrow buttons adjacent to the
Shared/Private indicator.
Power control
When configured (and where you have access rights) this option allows you to
control the mains power input to the currently selected host computer.
Note: This option is generally used to power cycle remote systems that have
failed to respond. Before switching a system off, ensure that all attempts have
first been made to power it down through normal means.
To auto calibrate the screen and mouse
1 Use the Hosts button to select the required computer.
2 Click the
button and then click OK in the subsequent pop-up message.
To switch a system on or off
1 Use the Hosts button to select the required computer.
The screen will appear to freeze for approximately 10 to 60 seconds as
the necessary calculations are made. Operation will return as soon as the
calculations are complete.
2 Click the Power button and then select the Switch on
or Switch off option, as appropriate.
Re-synchronise mouse
If you find that your local mouse pointer and that of the host are not correctly
synchronised, use this feature to re-align their movements. This operation is also
selectable from the Controls menu.
To re-synchronise the mouse
1 Use the Hosts button to select the required computer.
2 Click the
button and then click OK in the subsequent pop-up message.
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Controls
When clicked, this button reveals a menu of
options concerned with keyboard, video and mouse
operation.
Resync mouse
Keyboard control
This option has the same effect as the button on the
menu bar and resynchronises the local and remote
mouse pointers.
This option displays a keyboard control dialog and is useful for sending keyboard
combinations (to the host) that are needed regularly or that are trapped by the
AdderLink IP.
Refresh screen
This option refreshes the whole screen image to remove any artifacts from
moved screen items. This is useful when using very low refresh rates on slow
speed communication links.
Enter the
code here
Click to send
the code
Mouse control
This option displays a mouse control dialog and is useful when the remote
cursor is failing to respond correctly to your mouse movements, even after using
the Resync mouse option.
The mouse control dialog allows you to control the remote mouse cursor using a
selection of buttons that you click with your local mouse.
Click to produce a single
mouse click for the left,
centre or right mouse
buttons
When entering codes:
+ means press and hold down the named key,
– means release the named key.
Click to produce a
It is automatically assumed that all keys specified will be released at the end, so
there is need to specify -Ctrl or -Alt if these keys are to be released together.
continuous mouse click
and hold for the left,
centre or right mouse
buttons
Click to move the remote
mouse cursor up, down,
left or right
Examples:
Click to calibrate the
remote mouse
‘Ctrl + Alt 12’ would be expressed as: +Ctrl+ Alt+1–1+2
+N means press the ‘N’ key
+Scroll means press the Scroll lock key
+Space means press the space key
Click to display the Restore
mouse dialog where you can
reinstate a mouse that has failed
to operate correctly.
choose.
Video settings
see next page
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Video settings
This dialog provides access to all of the key video settings that determine image
quality and link performance.
Setting the Threshold manually
Occasionally it can be useful to manually adjust the Threshold setting, such as
when there is a KVM switch OSD banner that cannot be easily removed from the
display.
Phase
Threshold
The phase setting
adjusts the alignment
of the host video
output and the remote
system video display to
achieve the sharpest
image.
The threshold
is effectively a
noise filter that
differentiates
between valid
video signals and
background noise
or inteference.
This has the
effect of reducing
unnecessary video
signals between the
AdderLink IP and
the remote system,
thus improving
performance.
1 Use the ‘Calibrate all’ function to ensure that all other settings are
optimised.
2 Click the Threshold left arrow button to decrement the setting by one and
observe the Display activity indicator.
3 Repeat step 2 until the Display activity indicator suddenly rises to a much
higher level (i.e. 50%). This will mean that you have reached the noise
boundary. At this point, increment the Threshold value by 2 or 3 points to
achieve an optimum setting.
Horizontal position
Determines the
horizontal position of
the host screen image
within the viewer
window.
Vertical position
Determines the
vertical position
of the host screen
image within the
viewer window.
Colour, brightness &
contrast
Provides an automatic
setting button to
optimise these three
important video
constituents for the
current host and
connection speed.
Calibrate all
Click to
Display activity
Indicates the level
of video activity
currently in
determine the
optimum settings
for all aspects of
video the video
connection from
the host system.
progress.
All settings can be individually subjected to an auto configuration (click the
appropriate ‘Auto’ button) and the most can also be manually adjusted.
Use the ‘Calibrate all’ button to automatically determine the optimum settings
for all items.
Note: Before using the Calibrate all option, ensure that there are no on-screen
display elements generated by any connected KVM switch (such as a host name
label or menu). Due to the differing video rates of these items compared to the
video image from the host itself this can confuse the calibration process into
giving a much higher Threshold rate than is necessary, thus slowing the video
response.
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Connecting via dial up (modem or ISDN) link
If you need to enter a port number
When you use a modem or ISDN link to make the connection, the AdderLink
IP uses standard network protocols to create a private two-device network.
This approach ensures consistency and allows you to use exactly the same VNC
viewer or browser to view the hosts systems. This is achieved using PPP (Point to
Point Protocol) and means that you need to use a dial-up networking method to
initiate the connection. Such software is standard with operating systems such
as Windows, Linux and Mac OS.
Usually, when you make a network connection to the AdderLink IP (either
using the VNC viewer or a Web browser) you simply enter the IP address, i.e.
192.168.0.3. However, if a special configuration is necessary, then you may be
asked to specify a port number as well as the IP address.
To enter a port number in a Web browser
1 Enter the required IP address in the usual Address box,
To initiate a dial up link
1 Using a system that has a modem or ISDN adapter installed, locate the
dial-up networking option on your system. Please refer to your system
documentation for more information.
2 At the end of the IP address, add a single colon and then enter the port
number (in this example, the required port number is 200),
2 Using the dial-up networking option, enter the telephone/ISDN number
where the AdderLink IP can be contacted.
To enter a port number in VNC viewer
1 Enter the required IP address in the usual ‘Server’ box,
3 Initiate the call and when the link is made, continue with either the standard
Note: For the viewer network connection address, you must use the IP
address that the admin user has set as the Server address (or PPP server IP
address) within the Modem configuration screen.
2 At the end of the IP address, add two colons and then enter the port
number (in this example, the required port number is 115900),
Downloading VNC viewer from the AdderLink IP
The AdderLink IP has the ability to distribute its own VNC viewer application.
To download the VNC viewer
1 Open your Web browser.
2 Enter the network address where the AdderLink IP is situated (in the form:
3 In the opening AdderLink IP screen, click the link that offers to download the
secure VNC viewer ‘from the unit’.
4 Save the download file (vncviewer.exe) to your system.
5 Select and run the downloaded file and then connect to the AdderLink IP
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Viewer encryption settings
Supported web browsers
The web browser viewers and VNC viewers (of level 4.0b5S or higher) offer four
encryption options. The resulting actions of certain options depend upon how
the AdderLink IP to which you are connecting is configured:
The following web browsers have been tested and found to work correctly with
AdderLink IP.
Windows
• Internet Explorer 5.50 and above,
• Always on - This setting will ensure that the link is encrypted, regardless of
the AdderLink IP encryption setting.
with Microsoft [Java] Virtual Machine (release 5.50).
with Java 2 Runtime Environment 1.3 or above.
• Let server choose - This setting will follow the configuration of the
AdderLink IP. If the AdderLink IP has a preference to encrypt the link, then it
will be so, otherwise the link will not be encrypted.
Linux
• Prefer off - This setting will configure an un-encrypted link if the AdderLink
• Netscape 4.61 and above,
IP will allow it, otherwise it will be encrypted.
with Java 2 Runtime Environment 1.1 or above.
• Opera,
• Prefer on - If the AdderLink IP allows it, this setting will configure an
encrypted link, otherwise it will be un-encrypted.
with Java 2 Runtime Environment 1.1 or above.
Whenever encryption does take place, the viewer will first need to create the
necessary secure key before the connection process can continue.
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Further information
This chapter contains a variety of information, including the following:
• Getting assistance - see below
Troubleshooting
Remote network users are unable to contact the AdderLink IP
• Check that the correct address is being used by the remote users.
• Troubleshooting - see right
• Appendices
• If the AdderLink IP is situated behind a firewall, check that the relevant ports
network link is a 100Mbps connection, the 100 indicator should also be on.
The remote cursor is not correctly responding to my mouse movements
not have mouse cursor trails enabled and that the top left corner of the
screen is clear of application windows.
When logging on using VNC viewer, I cannot enter a username
admin user has been configured on the AdderLink IP.
• Warranty
Getting assistance
If you are still experiencing problems after checking the list of solutions in the
Troubleshooting section then we provide a number of other solutions:
Check the Support section of our website for the latest solutions and driver
files.
• Email – support@adder.com
• Fax
in the UK:
in the US:
01954 780081
+1 888 275 1117
• Phone
in the UK:
in the US:
01954 780044
+1 888 932 3337
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Appendix 1 - Local configuration menus
This section covers the control menus that are available when you are using the
locally connected keyboard, video monitor and mouse.
To access the local configuration menus
• On the locally connected keyboard, simultaneously press
.
Note: If the standard hotkeys (CTRL + ALT) have been changed, then you
need to use those keys together with C to access the menus.
AdderLink IP Control
Logoff
Restore Mouse Functions
If you are not logged on as the
‘admin’ user then the Configuration
menu will not be available.
Configuration
Access Mode Shared
Host
Email server
Use the Host entry to switch to the
required host computer (when a KVM
switch is used).
Return To Host
Select the ‘Configuration’ option to display:
AdderLink IP Configuration
Unit Configuration
Network Configuration
Modem Configuration
Select the required option:
Reset Configuration
Back
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Unit configuration
This page provides access
to a selection of both basic
and fundamental settings
for the AdderLink IP.
AdderLink IP Unit Config
To get here
1 Use the local keyboard and log on as the ‘admin’ user.
Hardware
Firmware
Rev 1
Version 1.4
2 Press
(hotkeys may be different).
Keybd Layout UK
Admin Passwd
Unit Name
3 Select ‘Configuration’.
4 Select ‘Unit configuration’.
Hot Keys
Screensaver
Time
Ctrl+Alt
10 mins
21 : 27 : 31
Date
15
Apr
2004
Encryption
Prefer Off
Save
Cancel
Screensaver
Keybd layout
Use the left and right arrow keys to select an appropriate period of inactivity on
the local keyboard or mouse before a screensaver is displayed and the user is
logged out. This setting applies to local users only and once the screensaver is
displayed, for security purposes the user is required to log in again. The timeout
period can be selected between 5 minutes and 1 day (24 hours), it cannot be
connections.
Use the arrow buttons to match the keyboard layout expected by the host
system.
Admin password
Enter the password that will be used to gain administrator access to the
AdderLink IP. There can only be one admin user and only that user is given
access to the configuration menus. The admin password background will be
red until a reasonably secure password has been entered, although this is only
advisory as any password or no password may be entered.
Time and date
Use the left and right arrow keys to select the correct time and date. The time
entry uses the 24 hour clock notation. The internal real time clock will continue
to run for roughly one week without power to the AdderLink IP, after that it will
be lost and require resetting. Use the up and down arrow keys to move between
each of the sections within the time and date entries.
Unit name
The name entered here will be displayed on the local menus and the remote
VNC/browser windows.
Hot keys
Use the left and right arrow keys to select an appropriate hot key sequence for
the locally connected keyboard. This sequence is used in combination with other
keypresses to access the on-screen menus and to change between hosts. The
options are: Ctrl+Alt (default), Ctrl+Shift, Alt+Shift, Alt Gr, Left + Right Alt, Left
Ctrl + Alt or Right Ctrl + Alt.
Encryption
Three options are available: Always on, prefer off, prefer on. The one to choose
details. The use of encryption imposes a slight performance overhead of roughly 10%
but is highly secure against third party intrusion.
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Network configuration
This page allows you to
configure the various
aspects of the IP port and its
relationship with the local
network.
To get here
AdderLink IP Network Config
MAC Address 00:0F:58:00:00:04
1 Use the local keyboard and log on as the ‘admin’ user.
2 Press
(hotkeys may be different).
Use DHCP
IP Address
Net Mask
Gateway
No
3 Select ‘Configuration’.
192.168.42.154
255.255.255.0
4 Select ‘Network configuration’.
VNC Port
HTTP Port
5900
80
Clear IP Access Control
Save Cancel
MAC address
Gateway
Media Access Control address – this is the unique and unchangeable code that
was hard coded within your AdderLink IP unit when it was built. It consists of
six 2-digit hexadecimal (base 16) numbers separated by colons. A section of
the MAC address identifies Adder Technology as the manufacturer, while the
remainder is effectively the unique electronic serial number of your particular
unit.
This is the address of the device that links the local network (to which the
AdderLink IP is connected) to another network such as the Internet. Usually
this is a network switch or router and it will be used whenever a device to be
contacted lies outside the local network.
VNC port
This is the logical link through which communications with a remote VNC viewer
a widely recognised port number for use by VNC software. However, in certain
circumstances it may be advantageous to alter this number - see Security issues
with ports for more details.
Use DHCP
DHCP is an acronym for ‘Dynamic Host Configuration Protocol’. Its function is
particularly useful when connecting to medium size or larger networks, such
as the Internet. When this option is selected, your AdderLink IP will attempt to
locate a DHCP server on the network. If such a server is located, it will supply
three things to the AdderLink IP: an IP address, an IP network mask (also known
as a Subnet mask) and a Gateway address. These are not usually granted
permanently, but on a ‘lease’ basis for a fixed amount of time or for as long as
Note: The VNC port and HTTP port can be set to the same port number in order
to simplify router and firewall configuration. If this is done then the AdderLink IP
will “listen” for both types of traffic on the single port.
HTTP port
This is the logical link through which communications with a remote web
browser will be channelled. The default setting of 80 is an established standard
for web (HTTP – HyperText Transfer Protocol) traffic though this can be changed
to suit your local network requirements.
IP address
This is the identity of the AdderLink IP within a network. The IP address
can be thought of as the telephone number of the AdderLink IP. Unlike the
MAC address, the IP address can be altered to suit the network to which it is
connected. It can either be entered manually or configured automatically using
the DHCP option. When the DHCP option is enabled, this entry is greyed out.
Clear IP access control
This option removes all entries from the IP access control feature within the
AdderLink IP. The IP access control feature (configurable by a remote admin user)
allows certain network address ranges to be denied access to the AdderLink IP.
If set incorrectly, it is possible to exclude all network users and so this option
provides an emergency recovery point.
Net mask
Also often called the ‘subnet-mask’, this value is used alongside the IP address
to help define a smaller collection (or subnet) of devices on a network. In this
way a distinction is made between locally connected devices and ones that are
reachable elsewhere, such as on the wider Internet. This process helps to reduce
overall traffic on the network and hence speed up connections in general.
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Modem configuration
This page allows you to
configure the COM1 serial
port located at the rear of
the AdderLink IP.
To get here
AdderLink IP Modem Config
1 Use the local keyboard and log on as the ‘admin’ user.
2 Press
(hotkeys may be different).
Server IP
192.168.3.1
192.168.3.2
115200
3 Select ‘Configuration’.
Client IP
Baud Rate
Init String
4 Select ‘Modem configuration’.
ATZHS0=1
Initialize Port
Restore Defaults
Save
Cancel
Server IP / Client IP
Init string
When a user dials into the AdderLink IP via a modem or ISDN adapter, the
AdderLink IP sets up a temporary two-device network using PPP (Point to Point
Protocol). For this purpose, both devices must have ‘dummy’ IP addresses so that
they can communicate correctly. These two addresses can be almost anything
expressed in the quad octet format (i.e. 192.168.3.1.). However, it is advisable
not to make them the same as the real IP addresses used by either the remote
system or the AdderLink IP.
The codes entered here are used to prepare the connected modem or ISDN
terminal adapter for use with the AdderLink IP. The default code is a Hayes-
compatible string to configure auto answer mode and would be understood by
the vast majority of modem/ISDN devices. The code is sent when the AdderLink
IP is first switched on or whenever the Initialize button is clicked.
Initialize port
When selected, this option sends the characters entered in the ‘Init string’ field
to the connected modem or ISDN terminal adapter.
Baud rate
This option configures the speed of the serial connection between the AdderLink
IP and a connected modem or ISDN terminal adapter. The default setting is
115200. The other communication settings are fixed as: No parity, 8 bit word, 1
stop bit.
Restore Defaults
When selected, this option resets the ‘Baud rate’ and ‘Init string’ values to their
original default settings.
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Reset configuration
This option allows you
to completely reset the
AdderLink IP.
To get here
AdderLink IP Reset Config
1 Use the local keyboard and log on as the ‘admin’ user.
2 Press
(hotkeys may be different).
WARNING: Continuing will cause
your existing configuration to
be erased.
3 Select ‘Configuration’.
4 Select ‘Reset configuration’.
The unit will then reset and
require re-configuring before
it can be used.
DO YOU WISH TO CONTINUE?
RESET
Cancel
WARNING: This process will remove all settings and return the unit to use its
original state. A complete reconfiguration will be required before it can be used.
To reset the AdderLink IP configuration
1 With the RESET option highlighted, press
.
2 The first screen of the initial configuration process will be displayed. See
Initial configuration for details.
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Clear IP access control
This option removes all entries from the IP access control feature within the
AdderLink IP.
What is IP access control?
The IP access control feature (configurable by a remote admin user) allows
certain network address ranges to be denied access to the AdderLink IP. If set
incorrectly, it is possible to exclude all network users and so this option provides
an emergency recovery point.
To clear IP access control
1 Use the local keyboard and log on as the ‘admin’ user.
2 Press
(hotkeys may be set differently).
3 Select ‘Configuration’.
AdderLink IP Network Config
MAC Address 00:0F:58:00:00:04
4 Select ‘Network
configuration’.
5 Highlight the ‘Clear IP
access control’ option
Use DHCP
IP Address
Net Mask
Gateway
No
192.168.42.154
255.255.255.0
and press
.
VNC Port
HTTP Port
5900
80
Clear IP Access Control
Save Cancel
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Appendix 2 - VNC viewer connection options
When you are connecting to
the AdderLink IP using the VNC
viewer, a number of options are
available.
IMPORTANT: If you make any changes to the options given here and wish to
retain them for successive connection sessions, you must save the changes.
To do this, change to the ‘Defaults’ tab and click the ‘Save as defaults’ button.
Click here to access the options
There are five tabbed pages of options:
Colour/Encoding
Auto select
Colour level
When ticked, this option will
examine the speed of your
connection to the AdderLink IP and
apply the most suitable encoding
method. This option is suggested for
the majority of installations.
This section allows you to select the most appropriate colour level for the speed
of the connection to the AdderLink IP. Where the connection speed is slow or
inconsistent there will be a necessary compromise between screen response and
colour depth.
• Full – This mode is suitable only for fast network connections and will pass
on the maximum colour depth being used by the host system.
• Medium (256 colours) – This mode reduces the host system output
to a 256 colour mode and is more suitable for ISDN and fast modem
connections.
Preferred encoding
There are three manually selectable
encoding methods which are
accessible when the Auto select
option is unticked.
• Low (64 colours) – This mode is suitable for slower modem connections
and reduces the host system output to 64 colours.
• ZRLE – This is a highly compressed method that is best suited to slow
• Very low (8 colours) – This mode provides very rudimentary picture
quality and hardly any speed advantage over the 64 colour setting. You are
recommended not to use this mode.
modem connections.
• Hextile – This method offers better performance than the ZRLE when used
over a high speed network because there is no need for the AdderLink IP to
spend time highly compressing the data.
• Raw – This is a primitive, uncompressed method that is mainly used for
technical support issues. You are recommended not to use this method.
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Inputs
Misc
Send pointer events to server
Shared connection (do not dis-
When un-ticked, the VNC viewer
will not send mouse movement or
click data to the AdderLink IP or host
system.
connect other viewers)
This option does not apply to
AdderLink IP connections.
Full screen mode
Send keyboard events to server
When un-ticked, the VNC viewer
will not send keyboard information
to the AdderLink IP or host system.
When ticked, the VNC viewer will
launch in full screen mode. Use the
menu key (usually F8) to exit from
full screen mode.
Send clipboard changes to server
This feature is restricted to software
server versions of VNC and has no
effect on AdderLink IP installations.
Render cursor locally
This option does not currently apply
to AdderLink IP connections.
Allow dynamic desktop resizing
Accept clipboard changes from server
This feature is restricted to software server versions of VNC and has no effect on
AdderLink IP installations.
When ticked, the viewer window will be automatically resized whenever the
host system’s screen resolution is altered.
Only use protocol version 3.3
Enable 3-button mouse emulation
This option does not apply to AdderLink IP connections.
This feature allows you to use a 2-button mouse to emulate the middle button
of a 3-button mouse. When enabled, press the left and right mouse buttons
simultaneously to create a middle button action. You are advised to generally
use a 3-button mouse.
Beep when requested to by the server
When ticked, your local system will beep in response to any error beeps emitted
by the AdderLink IP.
Rate-limit mouse move events
When ticked, this feature reduces the mouse movement information that is sent
to the AdderLink IP and host system. This is useful for slow connections and you
will notice that the remote cursor will catch up with the local cursor roughly
once every second.
Menu key
This feature allows you to select which function key is used to display the VNC
viewer options menu. The menu key is only way to exit from the full screen
viewer mode.
IMPORTANT: If you make any changes to the options given here and wish to
retain them for successive connection sessions, you must save the changes.
To do this, change to the ‘Defaults’ tab and click the ‘Save as defaults’ button.
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Identities
Defaults
This feature helps your VNC viewer
Reload defaults
to confirm that a revisited AdderLink
IP is genuine and not another device
masquerading as an AdderLink IP.
The list given will retain the identities
of all visited AdderLink IP units (that
have full security enabled).
When clicked, all connection options
are returned to the default settings
that are currently saved.
Save as defaults
When clicked, saves the current
connection options as the default set
that will be used in all subsequent
VNC connections.
When you first make a secure
connection to the AdderLink IP,
the security information for that
AdderLink IP unit is cached within
this Identity tab (i.e. the AdderLink
IP’s “identity” is known). The
next time that you connect to the
Save configuration file as...
Allows you to save the current
settings so that they can be copied
from one viewer to another.
AdderLink IP, its identity is checked
against the stored version. If a mismatch is found between the current and the
stored identities then a warning will be issued to you.
If an existing AdderLink IP is fully reconfigured then it will need to issued with
a new identity. In this case the previous identity, listed in this tab, should be
removed so that a new identity can be created on the next connection.
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Appendix 3 - VNC viewer window options
Click the VNC icon in the top left corner of the viewer window to display the
window options:
Standard window control items
Full screen
Expands the VNC viewer window to fill the whole screen
with no visible window edges or toolbar. Press F8 to re-
display this menu.
Send F8
Passes the F8 function key code to the AdderLink IP and
host system. This is necessary because F8 is trapped by the
VNC viewer for use as the trigger for this options menu.
Send Ctrl-Alt-Del
Passes a Ctrl-Alt-Del sequence to the host system.
New connection...
Displays the connection dialog so that you can log on to a
different AdderLink IP or VNC server location.
Options...
Displays the full range of connection options - see
Appendix 2 for more details.
Save options...
Allows you to save the current VNC connection options
for use during the next session.
Connection info...
Displays various connection and display details.
About...
Displays information about your VNC viewer.
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Inputs
Appendix 4 - Browser viewer options
When you are connecting to the
AdderLink IP using a Web browser, a
number of options are available.
View only (ignore mouse & keyboard)
When ticked, the viewer will not send keyboard or mouse information to the
AdderLink IP or host system.
Accept clipboard from server
This feature is restricted to software server versions of VNC and has no effect on
AdderLink IP installations.
Click here to access the options
Send clipboard to server
There is a single page of options:
This feature is restricted to software server versions of VNC and has no effect on
AdderLink IP installations.
Encoding and colour level
Auto select
Security
When ticked, this option will examine
the speed of your connection to the
AdderLink IP and apply the most
suitable encoding method. This option is
suggested for the majority of installations.
512 bits (low security)
Selects the lowest level of encoding for communications between the browser
and the AdderLink IP.
1024 bits (medium security)
Selects the middle level of encoding for communications between the browser
and the AdderLink IP.
Preferred encoding
There are three manually selectable
encoding methods which are accessible
when the Auto select option is unticked.
2048 bits (high security)
Selects the highest level of encoding for communications between the browser
and the AdderLink IP.
• ZRLE – This is a highly compressed
method that is best suited to slow
modem connections.
Misc
• Hextile – This method offers better
performance than the ZRLE when
Shared (don’t disconnect other viewers)
This feature is restricted to software server versions of VNC and has no effect on
AdderLink IP installations.
used over a high speed network
because there is no need for the
AdderLink IP to spend time highly compressing the data.
Render cursor locally
• Raw – This is a primitive, uncompressed method that is mainly used for
When ticked, you will see two mouse cursors, a local that responds immediately
to your movements and a second, slower moving, cursor that represents the
current mouse position at the host. If this option is unticked, then the local
cursor will be omitted. Note: Many common versions of Java in Web browsers
do not have the facility to switch off the local cursor. Sun Java should be used if
you need higher functionality.
technical support issues. You are recommended not to use this method.
Colour level
The colour level is fixed at Medium (256 colours) for almost all browsers.
Fast CopyRect
This feature is restricted to software server versions of VNC and has no effect on
AdderLink IP installations.
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Appendix 5 - Remote configuration menus
This section covers the configuration menus that are available to remote admin
users using either the VNC viewer or the browser methods of access.
To access the remote configuration menus
• Click the Configure button in the top right
corner of the window when logged on as
the admin user.
Main configuration menu
Logged on users
Indicates the current users
irrespective of whether they are
connected locally, by modem/
ISDN or via a network.
Click the required option
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User accounts
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
This section allows you to manage up to sixteen separate accounts.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘User accounts’ option.
The first of the sixteen accounts is the admin account and is the only account
with access rights to the configuration menus. The user name and access rights
are fixed for the admin account, the only change possible for this account is the
password.
There are fifteen user account positions.
User Name
All user names must consist of lower case characters or numbers only. No
symbols or upper case characters are permissible. The user name can be
between 1 and 16 characters in length.
Password
Passwords are case sensitive and can include certain keyboard symbols. The
password can be between 1 and 16 characters in length. It is important to note,
however, that the password background remains shaded in amber until the
AdderLink IP considers your entered password to be cryptographically strong.
This is best achieved using a mixture of more than six letters and numerals.
Local
When ticked, the selected user can gain access using the local KVM console
directly connected to the AdderLink IP.
Modem
When ticked, the selected user can gain access via a modem or ISDN link
(requires external modem/ISDN equipment to be connected to the AdderLink).
Remote
When ticked, the selected user can gain access via an IP network link, such as
a local intranet or the wider Internet (depending on how the AdderLink IP is
connected).
Power
To create a new account
When ticked, the selected user will be permitted to control the power input to
host systems (requires optional power control switch unit(s) to be fitted).
1 Enter the required User Name to activate that position (the Password and
access tick box positions will become editable).
2 Optionally enter a password for the user account.
3 Tick/untick the Local, Modem, Remote and Power options that are
appropriate to the user.
4 Click the Save button to register your changes.
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