Cisco Systems VC-289 Configuring a Proxy with ASR, Keyword, Interface Type, tunnel, vg-anylan

Configuring H.323 Gatekeepers and Proxies

H.323 Gatekeeper Configuration Task List

Table 26	Interface Type Keywords (continued)
Keyword		Interface Type
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.

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:

	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.

Cisco IOS Voice, Video, and Fax Configuration Guide

VC-337