Configuring A Gre Tunnel Between Ce And Pe; Establishing The Configuration Task - Huawei AR1200 series Configuration Manual

Huawei AR1200 Series Enterprise Routers
Configuration Guide - VPN
Current system time: 2008-03-04 19:17:30
Run the display ip routing-table command. If the route passing through the tunnel interface
exists in the routing table, the configuration succeeds. For example:
[Huawei] display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destination/Mask
GigabitEthernet2/0/0
Run the ping -a source-ip-address host command to see that the ping from the local tunnel
interface to the destination tunnel succeeds.
<Huawei> ping -a 40.1.1.1 40.1.1.2
PING 40.1.1.2: 56
--- 40.1.1.2 ping statistics ---

1.4 Configuring a GRE Tunnel Between CE and PE

Configuring a GRE tunnel between a CE and a PE enables the CE to access the public network
through the GRE tunnel.

1.4.1 Establishing the Configuration Task

Before configuring a GRE tunnel between a CE and a PE, familiarize yourself with the applicable
environment, complete the pre-configuration tasks, and obtain the required data. This can help
you complete the configuration task quickly and accurately.
Applicable Environment
To allow users of the CE that is not directly connected with a PE to access the Multi-Protocol
Label Switching (MPLS) VPN, configure a GRE tunnel, create routes between them, and
configure MPLS VPN on the PE.
Issue 01 (2012-04-20)
300 seconds input rate 0 bits/sec, 0 packets/sec
300 seconds output rate 0 bits/sec, 0 packets/sec
0 seconds input rate 0 bits/sec, 0 packets/sec
0 seconds output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes
0 input error
0 packets output, 0 bytes
0 output error
Input bandwidth utilization
Output bandwidth utilization : --
Destinations : 8
Proto
10.1.1.0/24 Direct 0
10.1.1.2/32 Direct 0
10.2.1.0/24 Static 60
20.1.1.1/32 Direct 0
40.1.1.0/24 Direct 0
40.1.1.1/32 Direct 0
127.0.0.0/8 Direct 0
127.0.0.1/32 Direct 0
data bytes, press CTRL_C to break
Reply from 40.1.1.2: bytes=56 Sequence=1 ttl=255 time=24 ms
Reply from 40.1.1.2: bytes=56 Sequence=2 ttl=255 time=33 ms
Reply from 40.1.1.2: bytes=56 Sequence=3 ttl=255 time=48 ms
Reply from 40.1.1.2: bytes=56 Sequence=4 ttl=255 time=33 ms
Reply from 40.1.1.2: bytes=56 Sequence=5 ttl=255 time=36 ms
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 24/34/48 ms
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Copyright © Huawei Technologies Co., Ltd.
: --
Routes : 8
Pre Cost Flags
0 D
0 D
0 D
0 D
0 D
0 D
0 D
0 D
1 GRE Configuration
NextHop Interface
10.1.1.2
127.0.0.1 InLoopBack0
40.1.1.1 Tunnel0/0/2
127.0.0.1 InLoopBack0
40.1.1.1 Tunnel0/0/2
127.0.0.1 InLoopBack0
127.0.0.1 InLoopBack0
127.0.0.1 InLoopBack0
8