ADTRAN 1000R Series

Command Reference Guide ATM Sub-Interfa c e Config Command Set

ip mcast-stub helper-enable

Use the ip mcast-stub helper-enable command to assign the ip mcast-stub helper-address as the IGMP

proxy. Use the no form of this command to disable.

Syntax Description

No subcommands.

Default Values

By default, this command is disabled.

Applicable Platforms

This command applies to the NetVanta 300, 1000R, 3000, and 4000 Series units.

Command History

Release 8.1 Command was introduced.

Functional Notes

This command is used in IP multicast stub applications in conjunction with the ip mcast-stub

helper-address, ip mcast-stub upstream, and ip mcast-stub downstream commands. When enabled,

the interface becomes a helper forwarding interface. The IGMP host function is dynamically enabled and

the interface becomes the active upstream interface, enabling the router to perform as an IGMP proxy.

Refer to ip mcast-stub helper-address <ip address> on page 434, ip mcast-stub downstream on page 757,

and ip mcast-stub upstream on page 759 for more information.

Usage Examples

The following example sets the helper address as the IGMP proxy:

(config)#interface atm 1.1

(config-atm 1.1)#ip mcast-stub helper-enable