Configuring PIM-DM

PIM-DM requires configuration on both the global level and on the VLAN (interface) level. The recommended configuration order is:

Procedure
  1. Enable IGMP on all VLANs where hosts may join a multicast group.
  2. Enable the following at the global level:
    1. IP routing
    2. IP multicast routing
    3. Router PIM and any non-default, global PIM settings you want to apply
    4. Router RIP, Router OSPF, and/or a static route
  3. If you selected RIP or OSPF in step 2: enable the same option on each VLAN where you want multicast routing to operate.
  4. Enable the following in each VLAN context where you want multicast routing to operate:
    1. IP RIP or IP OSPF
    2. IP PIM
    3. Any non-default, VLAN-level IP PIM settings you want to apply