3Com MSR 50, MSR 30 manual Reset igmp group, Undo require-router-alert, 1359

1359

undo require-router-alert

View Public instance IGMP view, VPN instance IGMP view

Parameter None

Description Use the require-router-alertcommand to configure globally the router to discard IGMP messages that do not carry the Router-Alert option.

Use the undo require-router-alertcommand to restore the system default.

By default, the device does not check the Router-Alert option, namely it handles all the IGMP messages it received to the upper layer protocol for processing.

Related command: igmp require-router-alert,send-router-alert (IGMP view).

Example # Globally configure the router to discard IGMP messages that do not carry the Router-Alert option in the public instance.

<Sysname> system-view [Sysname] igmp

[Sysname-igmp] require-router-alert

reset igmp group

Syntax reset igmp [ vpn-instancevpn-instance-name all-instance] group { all interface interface-type interface-number { all group-address [ mask { mask mask-length } ] [ source-address [ mask { mask mask-length } ] ] } }

View User view

Parameter vpn-instance-name: VPN instance name, a case sensitive string of up to 31 characters.

all-instance: Specifies all VPN instances.

all: Specifies to clear all IGMP forwarding entries.

interface interface-type interface-number: Clears the IGMP forwarding entries on the specified interface.

group-address: Multicast group address, in the range of 224.0.1.0 to 239.255.255.255.

source-address: Multicast source address.

mask: Subnet mask of the multicast group/source address, 255.255.255.255 by default.

mask-length: Subnet mask length of the multicast group/source address. For a multicast group address, this argument has an effective value range of 4 to 32; for