Huawei AR1200 Series Configuration Guide

Step 2 Run:
interface tunnel interface-number
The 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.
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.
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 CE is identical with the destination address of
the tunnel specified on the PE. The destination address of the tunnel specified on the CE is
identical with the source address of the tunnel specified on the PE.
Step 5 Run:
destination ip-address
The destination address of the tunnel interface is configured.
Step 6 (Optional) Run:
mtu mtu
The interface MTU can be 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
address of the tunnel interface.
l Run the ip address unnumbered interface interface-type interface-number command to
configure IP unnumbered for the tunnel interface.
----End
1.4.3 Configuring the GRE Tunnel Interface on PE
After creating a tunnel interface on a PE, specify GRE as the encapsulation type, set the tunnel
source address or source interface, and set the tunnel destination address. The source address of
the tunnel specified on the PE is the destination address of the tunnel specified on the CE. The
destination address of the tunnel specified on the PE is the source address of the tunnel specified
on the CE.
Context
Perform the following steps on the PE.
Huawei AR1200 Series Enterprise Routers
Configuration Guide - VPN 1 GRE Configuration
Issue 01 (2012-04-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
10

Huawei AR1200 Series Specifications

General

Brand	Huawei
Model	AR1200 Series
Category	Network Router
Language	English