306 
37.13 ip igmp snooping multi-vlan-config 
(router-port-forbidden) 
Description 
This command is used to forbid the specified ports as being router ports in the 
specified multicast VLAN. To  delete the forbidden router ports, please use no ip 
igmp snooping multi-vlan-config router-ports-forbidd command. 
Syntax 
ip igmp snooping multi-vlan-config [ vlan-id ] router-port-forbidd interface 
{ gigabitEthernet port-list | port-channel port-channel-id } 
no  ip igmp snooping multi-vlan-config  router-port-forbidd  [  interface 
{ gigabitEthernet port-list | port-channel port-channel-id } ]   
Parameter 
vlan-id—— The ID of the multicast VLAN. 
port-list —— Forbid the specified ports as being router ports. Packets sent from 
multicast routers to these ports will be discarded. 
port-channel-id ——  Forbid the specified port-channels as being  router ports. 
Packets sent from multicast routers to these port-channels will be discarded. 
Command Mode 
Global Configuration Mode 
Privilege Requirement 
Only Admin level users have access to these commands. 
Example 
Forbid the Ethernet ports 1/0/1-3 as being router ports in multicast VLAN 1 : 
T2600G-28TS(config)# ip igmp snooping multi-vlan-config 1 
router-port-forbidd interface gigabitEthernet 1/0/1-3 
37.14 ip igmp snooping multi-vlan-config 
(source-ip-replace) 
Description 
This command is used to replace the multicast source IP address of the IGMP 
packets in the specified multicast VLAN. To  delete the forbidden router ports,