Cisco H.323 VC-289 - Manual (Page 49)

Configuring H.323 Gatekeepers and Proxies
H.323 Gatekeeper Configuration Task List
VC-337
Cisco IOS Voice, Video, and Fax Configuration Guide
Configuring a Proxy with ASR
To enable ASR on the proxy, start the proxy and then define the H.323 name, zone, and QoS parameters
on the loopback interface. Next, determine which interface will be used to route the H.323 traffic and
configure ASR on it. The ASR interface and all other interfaces must be separated so that routing
information never travels from one to the other. There are two different ways to separate the ASR
interface and all other interfaces:
• Use one type of routing protocol on the ASR interface and another on all the non-ASR interfaces.
Include the loopback subnet in both routing domains.
• Set up two different autonomous systems, one that contains the ASR network and the loopback
network and another that contains the other non-ASR networks and loopback network.
To ensure that the ASR interface and all other interfaces never route packets between each other,
configure an access control list. (The proxy traffic will be routed specially because it is always addressed
to the loopback interface first and then translated by the proxy subsystem.)
To start the proxy with ASR enabled on the proxy using one type of routing protocol on the ASR
interface and another on all of the non-ASR interfaces, and with the loopback subnet included in both
routing domains, use the following commands beginning in global configuration mode:
tunnel Tunnel interface; a virtual interface. The number is the number of the tunnel
interface that you want to create or configure. There is no limit on the number
of tunnel interfaces you can create.
vg-anylan 100VG-AnyLAN port adapter.
Table 26 Interface Type Keywords (continued)
Keyword Interface Type
Command Purpose
Step 1 Router(config)# proxy h323 Starts the proxy.
Step 2 Router(config)# interface type number [name-tag] Enters loopback interface configuration mode.
For an explanation of the arguments, see Step 2 in the
“Configuring a Proxy Without ASR” configuration
task table.
To configure a proxy with ASR enabled on the proxy
using one type of routing protocol, the type argument
is loopback. The loopback type specifies the
software-only loopback interface that emulates an
interface that is always up. It is a virtual interface
supported on all platforms. The number argument is
the number of the loopback interface that you want to
create or configure. There is no limit on the number
of loopback interfaces that you can create.