Multicast Source Specific Multicast (SSM) Notes
Multicast Source Specific Multicast (SSM)
Configuring SSM
1. Activate PIM-SM everywhere
-> Does not work with DM
2. Configure every router for SSM
3. On LHR, activate IGMPv3 on client facing interfaces
R1(config)# ip multicast-routing
int fa0/0
ip pim sparse-mode
int s0/0
ip pim sparse-mode
ip pim ssm { default | range <acl> }
– default
->232.x.x.x only
– <acl>
-> Any other group specified
R1(config)# access-list 1 permit 225.1.1.1
ip pim ssm range 1
R3(config)# int fa0/0
ip igmp version 3
ip igmp join-group 225.1.1.1 source 1.1.1.1
-> To configure the router as a receiver