Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 2 GRE Configuration Commands
3Com Corporation
2-2
The specified tunnel destination address is IP address of the real physical interface
receiving GRE packets, which should be the same as the specified source address at
the opposite tunnel interface, and the route to the opposite physical interface should be
ensured reachable.
The same source address and destination address cannot be configured on two or
more tunnel interfaces using the same encapsulation protocol.
Related command: interface tunnel and source.
Example
# Set up tunnel connection between the interface serial 0/0/0 of the router Quidway1
(with IP address of 193.101.1.1) and the interface serial 1/0/0 of the router Quidway2
(with IP address of 192.100.1.1).
[Quidway1-Tunnel0] source 193.101.1.1
[Quidway1-Tunnel0] destination 192.100.1.1
[Quidway2-Tunnel1] source 192.100.1.1
[Quidway2-Tunnel1] destination 193.101.1.1
2.1.3 display interface tunnel
Syntax
display interface tunnel [number ]
view
Any view
Parameter
number: Tunnel interface ID.
Description
Use the display interface tunnel command to view the working status of tunnel
interface.
Executing the display interface tunnel command displays such information about the
tunnel interface as source address, destination address (the real physical interface
address receiving/sending GRE packet), encapsulation mode, identification keyword
and end-to-end check, etc.
Related command: source, destination, gre key, gre checksum, and
tunnel-protocol.
Example
# Display the current tunnel interface.
<Quidway> display interface tunnel 2