Lab Introduction This lab tests multicast over DMVPN. DMVPN Phase 3 is deployed with R01 as HUB and R02 and R03 as SPOKEs. Point-to-multipoint OSPF ru
This lab tests multicast over DMVPN. DMVPN Phase 3 is deployed with R01 as HUB and R02 and R03 as SPOKEs. Point-to-multipoint OSPF runs over DMVPN. WAN-facing physical interfaces are in global routing table; while tunnels and R04 interfaces are in GREEN_IVRF routing table.
DMVPN tunnel is encrypted by IKEv2 with pre-shared key (PSK). R04 is configured as BSR candidate and RP candidate. Multicast is enabled for VRF GREEN_IVRF. The goal is to ping multicast group address and all group member interfaces will respond. Please refer to Verification section for result.
CSR1000v (IOS-XE) integrated with GNS3 is used for this lab. Please refer to Install CSR1000v on GNS3 for setup.
The lab topology is as below:
Verify multicast routes in VRF GREEN_IVRF on R01, R02, R03 and R04.
Ping multicast group IP, all interfaces joined the group should respond.
Since IOS v15 including IOS-XE, a tunnel will be automatically created for PIM registering.
Other Useful Commands
show ip pim vrf GREEN_IVRF neighbor
show ip pim vrf GREEN_IVRF interface
show ip igmp vrf GREEN_IVRF groups
show ip igmp vrf GREEN_IVRF membership
show ip pim vrf GREEN_IVRF rp mapping