TANDBERG D14049.01 User Manual

Page of 187
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D 14049.01
07.2007
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Firewall Traversal and Authentication
Client Type and Client Settings
Server Type and Server Settings
VCS
The VCS client provides its 
Authentication Username
 and 
Authentication Password
.  These are set on the client via 
VCS 
Configuration > Authentication > Configuration
VCS Border Controller
The traversal server zone for that client must be configured with the 
client’s 
Authentication Username
.  This is set via 
VCS Configuration > 
Zones >  Edit Zone
There must also an entry in the server’s authentication database 
with the corresponding username and password.
Endpoint Client
The endpoint client provides its 
Authentication ID
 and 
Authentication 
Password
.
VCS Border Controller
There must be an entry in the server’s authentication database with 
the corresponding username and password.  
Gatekeeper Client
The Gatekeeper client looks up its 
System Name
 in its own 
authentication database and retrieves the password for that name.  
It then provides this name and password.
VCS Border Controller
The traversal server zone for the Gatekeeper client must 
be configured with the Gatekeeper’s 
System Name
 
in the 
Authentication Username
 field.  This is set via 
VCS Configuration > Zones >  Edit Zone
.  
There must be an entry in the server’s authentication database with 
the corresponding username and password.  
VCS
If Authentication is On on the Border Controller, the VCS client 
provides its 
Authentication Username
 and 
Authentication Password
.  
These are set on the client via 
VCS Configuration > Authentication > 
Configuration
If the Border Controller is in Assent mode, the VCS client provides 
its 
Authentication Username
.  This is set on the client via 
VCS 
Configuration > Authentication > Configuration
Border Controller
If Authentication is On on the Border Controller, there must be 
an entry in the Border Controller’s authentication database 
that matches the VCS client’s 
Authentication Username
 and 
Authentication Password
.
If the Border Controller is in Assent mode, the traversal zone 
configured on the Border Controller to represent the VCS client must 
use the client’s 
Authentication Username
 in the Assent 
Account 
name
 field.  This is set on the Border Controller via 
TraversalZone > 
Assent > Account name
.
Overview
In order to control usage of the VCS as a 
traversal server, each VCS or Gatekeeper that 
wishes to be its client must first authenticate 
with it.  
Upon receiving the initial connection request 
from the traversal client, the VCS Border 
Controller asks the client to authenticate 
itself by providing a username and password.  
The server then looks up the username and 
password in its own authentication database.  
If a match is found, the VCS server will accept 
the request from the client.  
The settings used for authentication depend 
on the combination of client and server 
being used.  These are detailed in the table 
opposite.
When acting as a VCS Border 
Controller, authentication is required 
from all VCS and Gatekeeper clients 
regardless of the VCS’s Authentication Mode 
setting.  This setting will however still 
determine whether or not endpoint clients are 
required to authenticate.
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Firewall Traversal