54
[RouterA-GigabitEthernet2/1/2] pim dm
[RouterA-GigabitEthernet2/1/2] quit
[RouterA] interface tunnel 0
[RouterA-Tunnel0] pim dm
[RouterA-Tunnel0] quit
# On Router C, enable multicast routing.
[RouterC] multicast routing
[RouterC-mrib] quit
# Enable IGMP on GigabitEthernet 2/1/1 (the interface that connects to the receiver host).
[RouterC] interface gigabitethernet 2/1/1
[RouterC-GigabitEthernet2/1/1] igmp enable
[RouterC-GigabitEthernet2/1/1] quit
# Enable PIM-DM on other interfaces.
[RouterC] interface gigabitethernet 2/1/2
[RouterC-GigabitEthernet2/1/2] pim dm
[RouterC-GigabitEthernet2/1/2] quit
[RouterC] interface tunnel 0
[RouterC-Tunnel0] pim dm
[RouterC-Tunnel0] quit
5. On Router C, configure a static multicast route, specifying its RPF neighbor to Source as interface
Tunnel 0 on Router A.
[RouterC] ip rpf-route-static 10.1.1.0 24 50.1.1.1
Verifying the configuration
# Send an IGMP report from Receiver to join the multicast group 225.1.1.1. (Details not shown.)
# Send multicast data from Source to the multicast group 225.1.1.1. (Details not shown.)
# Display PIM routing table information on Router C.
[RouterC] display pim routing-table
Total 1 (*, G) entry; 1 (S, G) entry
(*, 225.1.1.1)
Protocol: pim-dm, Flag: WC
UpTime: 00:04:25
Upstream interface: NULL
Upstream neighbor: NULL
RPF prime neighbor: NULL
Downstream interface(s) information:
Total number of downstreams: 1
1: GigabitEthernet2/1/1
Protocol: igmp, UpTime: 00:04:25, Expires: -
(10.1.1.100, 225.1.1.1)
Protocol: pim-dm, Flag: ACT
UpTime: 00:06:14
Upstream interface: Tunnel0
Upstream neighbor: 50.1.1.1
RPF prime neighbor: 50.1.1.1
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