Huawei AR1200 series Configuration Manual page 22

Huawei AR1200 Series Enterprise Routers
Configuration Guide - VPN
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface tunnel interface-number
A tunnel interface is created and the tunnel interface view is displayed.
Step 3 Run:
tunnel-protocol gre
The tunnel is encapsulated as a GRE tunnel.
Step 4 Run:
source { source-ip-address | interface-type interface-number }
The source address or source interface of the tunnel interface is configured.
The source interface of the tunnel cannot be the interface of the tunnel, but can be specified as
the interface of another tunnel.
The source address of the tunnel specified on the PE is identical with the destination address of
the tunnel specified on the CE. The destination address of the tunnel specified on the PE is
identical with the source address of the tunnel specified on the CE.
Step 5 Run:
destination ip-address
The destination address of the tunnel interface is configured.
Step 6 (Optional) Run:
mtu mtu
The interface MTU is modified. The new MTU takes effect only after you run the shutdown
and the undo shutdown commands in succession on the interface.
Step 7 Choose one of the following commands to configure the IP address of the tunnel interface.
l Run the ip address ip-address { mask | mask-length } [ sub ] command to configure the IP
l Run the ip address unnumbered interface interface-type interface-number command to
----End
Issue 01 (2012-04-20)
NOTE
l The virtual IP address of the VRRP backup group can be configured as the source address of the GRE
tunnel.
l The bridge-if interface can not be configured as the source interface of the GRE tunnel.
address of the tunnel interface.
configure IP unnumbered for the tunnel interface.
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1 GRE Configuration
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