3com MSR 20-20 참조 매뉴얼

# Disable insertion of the Router-Alert option into IGMP messages that leave 
Ethernet 1/0.

<Sysname> system-view

[Sysname] interface ethernet 1/0

[Sysname-Ethernet1/0] undo igmp send-router-alert 

igmp static-group group-address [ source source-address ]

undo igmp static-group { all | group-address [ source source-address ] }

Interface view

all: Specifies to remove all static multicast groups that the current interface has 
joined.

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

source-address: Multicast source address.

Use the igmp static-group command to configure the current interface to be a 
statically connected member of the specified multicast group.

Use the undo igmp static-group command to remove the current interface as a 
statically connected member of the specified multicast group.

By default, an interface is not a static member of any multicast group.

If the specified multicast address is in the SSM multicast address range, and if a 
multicast source address is specified in the command, multicasts carrying the (S, G) 
entry, namely the source address information, can be sent out through this 
interface.

# Configure Ethernet 1/0 to be a statically connected member of multicast group 
224.1.1.1.

<Sysname> system-view

[Sysname] interface ethernet 1/0

[Sysname-Ethernet1/0] igmp static-group 224.1.1.1 

# Configure Ethernet 1/0 so that it can forward multicasts that multicast source 
192.168.1.1 sends to multicast group 232.1.1.1.

<Sysname> system-view

[Sysname] interface ethernet 1/0

[Sysname-Ethernet1/0] igmp static-group 232.1.1.1 source 192.168.1.1