R3721-F3210-F3171-HP High-End Firewalls Network Management Configuration Guide-6PW101

Table Of Contents
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Multicast forwarding over GRE tunnels
Network requirements
Multicast routing and PIM-DM are enabled on Firewall A and Firewall C. Firewall B does not support
multicast. OSPF runs on Firewall A, Firewall B, and Firewall C.
Configure a GRE tunnel so that Receiver can receive the multicast data from Source.
Figure 319 Network diagram
Configuration procedure
1. Configure IP addresses:
Configure the IP address and mask for each interface as per Figure 319. (Details not shown.)
2. Configure a GRE tunnel:
# Create Tunnel 0 on Firewall A and configure the IP address and mask for the interface.
<FirewallA> system-view
[FirewallA] interface tunnel 0
[FirewallA-Tunnel0] ip address 50.1.1.1 24
# Configure Tunnel 0 to work in the GRE tunnel mode and specify the source and destination
addresses of the interface.
[FirewallA-Tunnel0] tunnel-protocol gre
[FirewallA-Tunnel0] source 20.1.1.1
[FirewallA-Tunnel0] destination 30.1.1.2
[FirewallA-Tunnel0] quit
# Create Tunnel 0 on Firewall C and configure the IP address and mask for the interface.
<FirewallC> system-view
[FirewallC] interface tunnel 0
[FirewallC-Tunnel0] ip address 50.1.1.2 24
# Configure Tunnel to operate in the GRE tunnel mode and configure the source and destination
addresses of the interface.
[FirewallC-Tunnel0] tunnel-protocol gre
[FirewallC-Tunnel0] source 30.1.1.2
[FirewallC-Tunnel0] destination 20.1.1.1
[FirewallC-Tunnel0] quit
3. Configure OSPF: