R3303-HP HSR6800 Routers IP Multicast Configuration Guide

IGMP configuration examples

This section provides examples of configuring IGMP.

Basic IGMP functions configuration example

Network requirements

The receivers receive VOD information through multicast. The receivers of different organizations form

stub networks N1 and N2. Host A and Host C are receivers in N1 and N2, respectively.

Router A in the PIM network connects to N1, and both Router B and Router C connect to another stub

network, N2.

IGMPv2 runs between Router A and N1, and between the other two routers and N2. Router B acts as the

IGMP querier in N2 because it has a lower IP address.

The hosts in N1 can join only multicast group 224.1.1.1, and the hosts in N2 can join any multicast

groups.

Figure 29 Network diagram

Configuration procedure

1. Assign an IP address and subnet mask to each interface according to Figure 29. (Details not

shown.)

2. Configure OSPF on the routers on the PIM network to make sure they are interoperable at the

network layer and they can dynamically update their routing information. (Details not shown.)

3. Enable IP multicast routing, and enable PIM-DM and IGMP:

# Enable IP multicast routing on Router A, enable PIM-DM on each interface, and enable IGMP on

GigabitEthernet 2/0/1.

<RouterA> system-view

Router A

Router B

Router C

Querier

PIM network

Receiver

Host A

Host B

Host C

Host D

GE2/0/1

10.110.1.1/24

GE2/0/1

10.110.2.1/24

GE2/0/1

10.110.2.2/24

GE2/0/0