Cisco Cisco TelePresence Video Communication Server Expressway
Note that the regular expression used to prevent local domains being searched via the DNS zone can be broken down
into the following components:
into the following components:
(.*) = match all pattern strings
(?!.*@%localdomains%.*$).* = do not match any pattern strings ending in @localdomains
In the deployment example, calls destined for @cisco.com would be searched via the DNS zone, whereas calls destined
for @example.com would not.
for @example.com would not.
Task 13: Configuring External (Unknown) IP Address Routing
The following configuration defines how a VCS routes calls (and other requests) to external IP addresses. An external IP
address is an IP address which is not ‘known’ to the VCS and therefore assumed to be a publicly routable address.
address is an IP address which is not ‘known’ to the VCS and therefore assumed to be a publicly routable address.
Known IP addresses are addresses defined in a subzone (using a subzone membership subnet rule) or the IP address
of an H.323 registered device.
of an H.323 registered device.
■
All requests destined for external IP addresses, originating at the VCS Control are routed to the VCS Expressway
using a search rule.
using a search rule.
■
The VCS Expressway then attempts to open a connection directly to the IP address.
To configure how the VCS will handle calls to unknown IP addresses:
1.
Go to Configuration > Dial plan > Configuration.
2.
Configure the fields as follows:
VCS Control
VCS Expressway
Calls to unknown IP addresses
Indirect
Direct
3.
Click Save.
26
Cisco VCS Expressway and VCS Control - Basic Configuration Deployment Guide