Authentication And Ntp - Cisco TelePresence Administrator's Manual

Client
VCS Control or VCS Expressway
If authentication is enabled on the Border
Controller, the VCS client provides its Username
and Password. These are set on the traversal
client zone by using VCS configuration > Zones >
Zones > Edit zone, in the Connection credentials
section.
If the Border Controller is in Assent mode, the VCS
client provides its Username. This is set on the
traversal client zone by using
Zones > Zones > Edit zone, in the Connection
credentials section.
Note that all VCS and Gatekeeper traversal clients must authenticate with the VCS Expressway, even if the
VCS Expressway is not using device authentication for endpoint clients.

Authentication and NTP

All VCS and Gatekeeper traversal clients that support H.323 must authenticate with the VCS Expressway.
The authentication process makes use of timestamps and requires that each system uses an accurate
system time. The system time on a VCS is provided by a remote NTP server. Therefore, for firewall traversal
to work, all systems involved must be configured with details of an
Cisco VCS Administrator Guide (X7.2)
Server
TANDBERG Border Controller
If authentication is enabled 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 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 VCS's authentication Username in
the Assent Account name field. This is set on the Border
VCS configuration > Controller via TraversalZone > Assent > Account
NTP server.
Firewall traversal
name.
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