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
•
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
Hub 1
Spoke 1
Site 1
Table 6 Interface and IP address assignment
Device
Hub 1
Hub 1
Hub 1
Hub 1
Hub 2
Hub 2
Protocol: pim-dm, UpTime: 00:04:25, Expires: -
Figure
22:
Source
GE1/0/2
IP network
GE1/0/2
Hub-to-Hub static tunnel
Hub-to-Spoke static tunnel
Receiver
Interface
IP address
GE1/0/1
100.1.1.1/24
Tunnel1
192.168.0.1/24
Loop0
1.1.1.1/32
GE1/0/2
10.1.1.10/24
GE1/0/1
100.1.1.2/24
Tunnel1
192.168.0.2/24
GE1/0/1
GE1/0/2
Site 2
Device
Interface
Spoke 1
GE1/0/1
Spoke 1
Tunnel1
Spoke 1
GE1/0/2
Spoke 2
GE1/0/1
Spoke 2
Tunnel1
Server
GE1/0/1
58
Hub 2
Server
Spoke 2
IP address
100.1.1.3/24
192.168.0.3/24
20.1.1.10/24
100.1.1.4/24
192.168.0.4/24
100.1.1.100/24