Cisco Systems VC-289 manual Command, Purpose, zone subnet command, VC-306

Configuring H.323 Gatekeepers and Proxies

H.323 Gatekeeper Configuration Task List

	Command	Purpose
Step 4	Router(config-gk)#zone subnet local-gatekeeper-name	Defines a set of subnets that constitute the gatekeeper
	[default subnet-address {/bits-in-mask	zone. Enables the gatekeeper for each of these
	mask-address}enable]	subnets and disables it for all other subnets. (Repeat
		for all subnets.)
		The keywords and arguments are as follows:
		• local-gatekeeper-name—Specifies the name of
		the local gatekeeper.
		• default—(Optional) Applies to all other subnets
		that are not specifically defined by the
		zone subnet command.
		• subnet-address—(Optional) Specifies the
		address of the subnet that is being defined.
		• bits-in-mask—(Optional) Specifies the number
		of bits of the mask to be applied to the subnet
		address.
		Note The slash must be entered before this
		argument.
		• mask-address—(Optional) Specifies the mask (in
		dotted string format) to be applied to the subnet
		address.
		• enable—(Optional) Specifies that the gatekeeper
		accepts discovery and registration from the
		specified subnets.
		Note To define the zone as being all but one set of
		subnets by disabling that set and enabling all
		other subnets, use the no form of the
		command as follows: Configure no zone
		subnet local-gatekeeper-name
		subnet-address {/bits-in-mask
		mask-address}enable.

Note To accept the default behavior, which is that all subnets are enabled, use the no form of the command as follows: no zone subnet local-gatekeeper-namedefault enable.

Step 5 Router(config-gk)# no shutdown Brings the gatekeeper online.

The local-gatekeeper-nameargument should be a Domain Name System (DNS) host name if DNS is to be used to locate remote zones.

The zone subnet command may be used more than once to create a list of subnets controlled by a gatekeeper. The subnet masks need not match actual subnets in use at your site. For example, to specify a particular endpoint, show its address as a 32-bit netmask.

If a local gatekeeper name is contained in the message, it must match the local-gatekeeper-nameargument.

Cisco IOS Voice, Video, and Fax Configuration Guide

VC-306