Huawei AR1200 Series - Configuring User Interfaces

#
interface GigabitEthernet1/0/0
ip address 30.1.1.2 255.255.255.0
ipsec policy policy1
#
interface GigabitEthernet2/0/0
ip address 10.2.1.2 255.255.255.0
pim dm
igmp enable
#
interface Tunnel0/0/1
ip address 40.1.1.2 255.255.255.0
tunnel-protocol gre
source 30.1.1.2
destination 20.1.1.1
pim dm
#
ospf 1
area 0.0.0.0
network 30.1.1.2 0.0.0.0
#
ip route-static 10.1.1.0 255.255.255.0 Tunnel0/0/1
#
return
1.7.4 Example for Configuring the CE to Access a VPN Through a
GRE Tunnel of the Public Network
This section provides an example for configuring a CE to access a VPN through a GRE tunnel
on the public network. In this networking, the PE is indirectly connected to the CE; thus, no
physical interface can be bound to the VPN instance on the PE. Then, a GRE tunnel over the
public network is required between the CE and PE and the GRE tunnel is required to be bound
to the VPN instance on the PE. This allows the CE to access the VPN through the GRE tunnel.
Networking Requirements
As shown in Figure 1-8,
l routerPE1 and PE2 are located in the MPLS backbone network.
l CE1 is connected to PE1 through R1.
l CE2 is connected to PE2 directly.
l CE1 and CE2 belong to the same VPN.
CE1 and CE2 are required to interwork with each other.
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.
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