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

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Cisco Systems VC-289 Zone subnet command, Subnet local-gatekeeper-name, Subnet-address /bits-in-mask, Mask-addressenable
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