H3C Technologies H3C SecPath F1000-E User Manual
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# Configure the tunnel encapsulation mode of interface Tunnel 0 as P2MP GRE.
[DeviceA-Tunnel0] tunnel-protocol gre p2mp
# Configure the mask of the branch network connected to Tunnel 0 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
# Configure Tunnel 1 as the backup interface of Tunnel 0.
[DeviceA-Tunnel0] gre p2mp backup-interface tunnel 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
# Create interface Tunnel 0 and configure an IP address for it.
<DeviceB> system-view
[DeviceB] interface tunnel 0
[DeviceB-Tunnel0] ip address 172.168.2.2 255.255.255.0
# Configure the tunnel encapsulation mode of interface Tunnel 0 as P2MP GRE.
[DeviceB-Tunnel0] tunnel-protocol gre p2mp
# Configure the source IP address of interface Tunnel 0.
[DeviceB-Tunnel0] source 11.1.1.2
# Configure the mask of the branch network connected to Tunnel 0 as 255.255.255.0.
[DeviceB-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
[DeviceB-Tunnel0] quit
# Configure a static route to the branch network with the outgoing interface being Tunnel 0.
[DeviceB] ip route-static 192.168.12.0 255.255.255.0 tunnel 0
# Create tunnel interface Tunnel 1 and configure an IP address for it.
[DeviceB] interface tunnel 1
[DeviceB-Tunnel1] ip address 192.168.22.2 255.255.255.0
# Configure the tunnel encapsulation mode of interface Tunnel 1 as GRE over IPv4.
[DeviceB-Tunnel1] tunnel-protocol gre
# Configure the source and destination IP addresses of interface Tunnel 1.
[DeviceB-Tunnel1] source 10.1.1.2
[DeviceB-Tunnel1] destination 10.1.1.1
[DeviceB-Tunnel1] quit
Step3
Configure Device C
# Create interface Tunnel 0 and configure an IP address for it.
<DeviceC> system-view
[DeviceC] interface tunnel 0