202
# 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 Source address Interface VPN instance
239.1.1.1 1.1.1.1 MTunnel0 a
# Display information about the default-groups in VPN instances on PE 2.
[PE2] display multicast-domain default-group
Group address Source address Interface VPN instance
239.1.1.1 1.1.1.2 MTunnel0 a
239.1.1.1 1.1.1.2 MTunnel1 b
# Display information about the default-groups in VPN instances on PE 3.
[PE3] display multicast-domain default-group
Group address Source address Interface VPN instance
239.1.1.1 1.1.1.3 MTunnel0 a
239.2.2.2 1.1.1.3 MTunnel1 b
Inter-AS MD VPN configuration example
Network requirements
Item Network re
uirements
Multicast sources
and receivers
• 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.
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