# Enable IP multicast routing.
<CEb2> system-view
[CEb2] multicast routing
[CEb2-mrib] quit
# Assign an IP address to GigabitEthernet 2/1/1, and enable IGMP on the interface.
[CEb2] interface gigabitethernet 2/1/1
[CEb2-GigabitEthernet2/1/1] ip address 10.110.11.1 24
[CEb2-GigabitEthernet2/1/1] igmp enable
[CEb2-GigabitEthernet2/1/1] quit
# Assign an IP address to GigabitEthernet 2/1/2, and enable PIM-SM on the interface.
[CEb2] interface gigabitethernet 2/1/2
[CEb2-GigabitEthernet2/1/2] ip address 10.110.6.2 24
[CEb2-GigabitEthernet2/1/2] pim sm
[CEb2-GigabitEthernet2/1/2] quit
# Configure RIP.
[CEb2] rip 3
[CEb2-rip-3] network 10.0.0.0
Verifying the configuration
# Display information about the default-groups in VPN instances on PE 1.
[PE1] display multicast-domain default-group
Group address
239.1.1.1
# Display information about the default-groups in VPN instances on PE 2.
[PE2] display multicast-domain default-group
Group address
239.1.1.1
239.1.1.1
# Display information about the default-groups in VPN instances on PE 3.
[PE3] display multicast-domain default-group
Group address
239.1.1.1
239.2.2.2
Inter-AS MD VPN configuration example
Network requirements
Item
Multicast sources
and receivers
Source address
Interface
1.1.1.1
MTunnel0
Source address
Interface
1.1.1.2
MTunnel0
1.1.1.2
MTunnel1
Source address
Interface
1.1.1.3
MTunnel0
1.1.1.3
MTunnel1
Network requirements
•
In VPN instance a, S 1 is a multicast source, and R 2 is a receiver.
•
In VPN instance b, S 2 is a multicast source, and R 1 is a receiver.
•
For VPN instance a, the default-group address is 239.1.1.1, and the data-group
address range is 225.1.1.0 to 225.1.1.15.
•
For VPN instance b, the default-group address is 239.4.4.4, and the data-group
address range is 225.4.4.0 to 225.4.4.15.
VPN instance
a
VPN instance
a
b
VPN instance
a
b
202