58
Protocol: pim-dm, UpTime: 00:04:25, Expires: -
The output shows that Router A is the RPF neighbor of Router C and the multicast data from Router
A is delivered over the GRE tunnel to Router C.
Multicast forwarding over ADVPN tunnels
Network requirements
As shown in Figure 22:
An ADVPN tunnel is established between each spoke and hub.
All hubs and spokes support IP multicast. PIM-SM runs on them, and NBMA runs on their
ADVPN tunnel interfaces.
OSPF runs on all hubs and spokes.
Configure the routers so that Spoke 1 can receive multicast data from the source.
Figure 22 Network diagram
Table 6 Interface and IP address assignment
Hub 1 GE1/0/1 100.1.1.1/24 Spoke 1 GE1/0/1 100.1.1.3/24
Hub 1 Tunnel1 192.168.0.1/24 Spoke 1 Tunnel1 192.168.0.3/24
Hub 1 Loop0 1.1.1.1/32 Spoke 1 GE1/0/2 20.1.1.10/24
Hub 1 GE1/0/2 10.1.1.10/24 Spoke 2 GE1/0/1 100.1.1.4/24
Hub 2 GE1/0/1 100.1.1.2/24 Spoke 2 Tunnel1 192.168.0.4/24
Hub 2 Tunnel1 192.168.0.2/24 Server GE1/0/1 100.1.1.100/24
IP network
Source
Hub 1 Hub 2
Spoke 1 Spoke 2
Server
GE1/0/1
Tunnel1
GE1/0/2
GE1/0/2
GE1/0/1
Tunnel1
GE1/0/2
GE1/0/1
GE1/0/1
Tunnel1
Tunnel1
GE1/0/1
Hub-to-Hub static tunnel
Hub-to-Spoke static tunnel
Receiver
Site 1
Site 2