H3C Technologies H3C SecPath F1000-E - Manual (Page 24)

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Figure 15 Network diagram for basic P2MP GRE tunnel configuration
Configuration procedure
Step1 Configure Device A
# Configure an IP address for interface GigabitEthernet 1/1.
system-view
[DeviceA] interface gigabitethernet 1/1
[DeviceA–GigabitEthernet1/1] ip address 11.1.1.1 255.255.255.0
[DeviceA–GigabitEthernet1/1] quit
# Configure an IP address for interface GigabitEthernet 1/2.
[DeviceA] interface gigabitethernet 1/2
[DeviceA–GigabitEthernet1/2] ip address 192.168.11.1 255.255.255.0
[DeviceA–GigabitEthernet1/2] quit
# Create interface Tunnel 0 and configure an IP address for it.
[DeviceA] interface tunnel 0
[DeviceA-Tunnel0] ip address 192.168.22.1 255.255.255.0
# Configure the tunnel encapsulation mode as P2MP GRE.
[DeviceA-Tunnel0] tunnel-protocol gre p2mp
# Configure the mask of the branch network as 255.255.255.0.
[DeviceA-Tunnel0] gre p2mp branch-network-mask 255.255.255.0
# Set the tunnel entry aging time to 20 seconds.
[DeviceA-Tunnel0] gre p2mp aging-time 20
# Configure the source IP address of interface Tunnel 0.
[DeviceA-Tunnel0] source 11.1.1.1
[DeviceA-Tunnel0] quit
# Configure a static route to the branch network with the outgoing interface being Tunnel 0.
[DeviceA] ip route-static 192.168.12.0 255.255.255.0 tunnel 0
Step2 Configure Device B
# Configure an IP address for interface GigabitEthernet 1/1.
system-view
[DeviceB] interface gigabitethernet 1/1
[DeviceB–GigabitEthernet1/1] ip address 11.1.1.2 255.255.255.0