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Table 14 Interface and IP address assignment
Device Interface IP address
Device
Interface
IP address
Source 1 — 10.110.5.100/24 Router C
GigabitEthernet
2/1/1
192.168.1.2/24
Source 2 — 10.110.6.100/24 Router C
GigabitEthernet
2/1/2
192.168.2.2/24
Router A
GigabitEthernet
2/1/1
10.110.5.1/24 Router D
GigabitEthernet
2/1/1
10.110.3.1/24
Router A
GigabitEthernet
2/1/2
10.110.2.2/24 Router D
GigabitEthernet
2/1/2
10.110.4.1/24
Router B
GigabitEthernet
2/1/1
10.110.1.1/24 Router D
GigabitEthernet
2/1/3
192.168.2.1/24
Router B
GigabitEthernet
2/1/2
10.110.2.1/24 Router D Loopback 0 2.2.2.2/32
Router B
GigabitEthernet
2/1/3
192.168.1.1/24 Router D Loopback 10 4.4.4.4/32
Router B Loopback 0 1.1.1.1/32 Router D Loopback 20 10.1.1.1/32
Router B Loopback 10 3.3.3.3/32 Router E
GigabitEthernet
2/1/1
10.110.6.1/24
Router B Loopback 20 10.1.1.1/32 Router E
GigabitEthernet
2/1/2
10.110.4.2/24
Configuration procedure
1. Assign an IP address and subnet mask to each interface according to Figure 54. (Details not
shown.)
2. Configure OSPF on the routers in the PIM-SM domain to make sure the following conditions are
met:. (Details not shown.)
{ The routers are interoperable at the network layer.
{ The routers can dynamically update routing information.
3. Enable IP multicast routing, IGMP, and PIM-SM:
# On Router B, enable IP multicast routing.
<RouterB> system-view
[RouterB] multicast routing
[RouterB-mrib] quit
# Enable IGMP on GigabitEthernet 2/1/1 (the interface that connects to the receiver host).
[RouterB] interface gigabitethernet 2/1/1
[RouterB-GigabitEthernet2/1/1] igmp enable
[RouterB-GigabitEthernet2/1/1] quit
# Enable PIM-SM on the other interfaces.
[RouterB] interface gigabitethernet 2/1/2
[RouterB-GigabitEthernet2/1/2] pim sm
[RouterB-GigabitEthernet2/1/2] quit
[RouterB] interface gigabitethernet 2/1/3
[RouterB-GigabitEthernet2/1/3] pim sm