IGMP - Joining a group

• Example: two multicast groups

  • Group A: 224.2.0.1
  • Group B: 224.5.5.5

Send periodic IGMP queries to 224.0.0.1

(all multicast systems)

Host 1

Host 3

Host 2

Send a subscribe to 224.2.0.1 (group A) for Hosts 1, 2, 3

Send a subscribe to 224.5.5.5 (group B) for Host 3

224.2.0.1

224.2.0.1

224.5.5.5

224.2.0.1

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