Configuring Igmp Snooping Learning; Configuring A Multicast Router Port Statically - Cisco 7609 Configuration Manual

Configuring IGMP Snooping

Configuring IGMP Snooping Learning

To configure IGMP snooping learning, perform this task:
Command
Step 1
Router(config)# interface vlan vlan_ID
Step 2
Router(config-if)# ip igmp snooping mrouter learn
{cgmp | pim-dvmrp}
Router(config-if)# no ip igmp snooping mrouter
learn {cgmp | pim-dvmrp}
This example shows how to configure IP IGMP snooping to learn from PIM/DVMRP packets:
Router(config)# interface vlan 1
Router(config-if)# ip igmp snooping mrouter learn pim-dvmrp
Router(config-if)# end
Router#
This example shows how to configure IP IGMP snooping to learn from CGMP self-join packets:
Router(config)# interface vlan 1
Router(config-if)# ip igmp snooping mrouter learn cgmp
Router(config-if)# end
Router#

Configuring a Multicast Router Port Statically

To configure a static connection to a multicast router, perform this task:
Command
Step 1
Router(config)# mac-address-table static mac_addr
vlan vlan_id interface type
[disable-snooping]
Router(config)# no mac-address-table static
mac_addr vlan vlan_id
Step 2
Router(config-if)# end
Step 3
Router# show mac-address-table address mac_addr
1. type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
With Release 12.1(11b)E2 and later releases, you can enter the disable-snooping keyword to prevent
multicast traffic addressed to the statically configured multicast MAC address from also being sent to
other multicast router ports in the same VLAN.
This example shows how to configure a static connection to a multicast router:
Router(config)# mac-address-table static 0050.3e8d.6400 vlan 12 interface fastethernet 5/7
All releases support the mac-address-table static command. The ip igmp snooping mrouter interface
command, which was available in earlier releases and which provided the same functionality as the
mac-address-table static command, is deprecated in Release 12.1(13)E and later releases.
Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
21-10
1
slot/port
Chapter 21
Purpose
Selects a VLAN interface.
Configures the learning method.
Reverts to the default learning method.
Purpose
Configures a static connection to a multicast router.
Clears a static connection to a multicast router.
Exits configuration mode.
Verifies the configuration.
Configuring IGMP Snooping
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