HP MSR2003 Configuration Manual page 63

Figure 21 Network diagram
Configuration procedure
1. Assign an IP address and mask for each interface according to
2. Enable OSPF on routers to make sure the following conditions are met: (Details not shown.)
The routers are interoperable at the network layer.
The routers can dynamically update their routing information.
3. Configure a GRE tunnel:
# On Router A, create interface Tunnel 0, and specify the tunnel encapsulation mode as GRE over
IPv4.
<RouterA> system-view
[RouterA] interface tunnel 0 mode gre
# Assign an IP address to interface Tunnel 0, and specify its source and destination addresses.
[RouterA-Tunnel0] ip address 50.1.1.1 24
[RouterA-Tunnel0] source 20.1.1.1
[RouterA-Tunnel0] destination 30.1.1.2
[RouterA-Tunnel0] quit
# Create interface Tunnel 0 on Router C and specify the tunnel encapsulation mode as GRE over
IPv4.
<RouterC> system-view
[RouterC] interface tunnel 0 mode gre
# Assign an IP address to interface Tunnel 0, and specify its source and destination addresses.
[RouterC-Tunnel0] ip address 50.1.1.2 24
[RouterC-Tunnel0] source 30.1.1.2
[RouterC-Tunnel0] destination 20.1.1.1
[RouterC-Tunnel0] quit
4. Enable IP multicast routing, PIM-DM, and IGMP:
# On Router A, enable multicast routing, and enable PIM-DM on each interface.
[RouterA] multicast routing
[RouterA-mrib] quit
[RouterA] interface gigabitethernet 2/1/1
[RouterA-GigabitEthernet2/1/1] pim dm
[RouterA-GigabitEthernet2/1/1] quit
[RouterA] interface gigabitethernet 2/1/2
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Figure 21. (Details not shown.)