3Com Switch 8800 Advanced Software V5 Configuration Guide

IGMP Snooping Configuration Examples 559
While no multicast protocol runs on Router B, perform the following
configuration so that Switch A can forward all received multicast data to
Router B.
Network diagram
Figure 173 Network diagram for static router port configuration
Configuration procedure
1 Configure the IP address of each interface
Configure an IP address and subnet mask for each interface as per Figure 173. The
detailed configuration steps are omitted.
2 Configure Router A
# Enable IP multicast routing, enable PIM-DM on each interface, and enable
IGMPv2 on Ethernet1/1/1.
<RouterA> system-view
[RouterA] multicast routing-enable
[RouterA] interface ethernet 1/1/1
[RouterA-Ethernet1/1/1] igmp enable
[RouterA-Ethernet1/1/1] igmp version 2
[RouterA-Ethernet1/1/1] pim dm
[RouterA-Ethernet1/1/1] quit
[RouterA] interface ethernet 1/1/2
[RouterA-Ethernet1/1/2] pim dm
[RouterA-Ethernet1/1/2] quit
n
The configurations mentioned above are for reference only. Specific configurations
are subject to the implementations of the devices.
3 Configure Switch A
# Create VLAN 100.
<SwitchA> system-view
[SwitchA] vlan 100
# Add Ethernet1/1/1 through Ethernet1/1/4 into VLAN 100.
Multicast packets
Source
Router A Switch A
Receiver
Host B
Host A
Eth1/1/3
Eth1/1/1
Eth1/1 /2
Router B
Internet
IGMP querier
Eth1 /1/4
Eth1 /1/1
10.1.1.1/24
Eth1/1/2
1.1.1.2/24
1.1.1.1/24