Configuring A Gre Tunnel - Cisco 7206 - VXR Router Configuration Manual

Chapter 8 Configuring IP Tunnels
S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m
You can configure the following optional parameters to tune the tunnel in interface configuration mode:
Command
description string
Example:
switch(config-if)# description GRE tunnel
mtu value
Example:
switch(config-if)# mtu 1400
tunnel ttl value
Example:
switch(config-if)# tunnel ttl 100
This example shows how to create a tunnel interface:
switch# configure terminal
switch(config)# interface tunnel 1
switch(config-if)# tunnel source ethernet 1/2
switch(config-if)# tunnel destination 192.0.2.1
switch(config-if)# copy running-config startup-config

Configuring a GRE Tunnel

You can set a tunnel interface to GRE tunnel mode.
BEFORE YOU BEGIN
Ensure that you have enabled the tunneling feature.
SUMMARY STEPS
1.
2.
3.
4.
5.
OL-23435-03
configure terminal
interface tunnel number
tunnel mode gre ip
show interfaces tunnel number
copy running-config startup-config
Purpose
Configures a description for the tunnel.
Sets the MTU of IP packets sent on an interface.
Sets the tunnel time-to-live value. The range is
from 1 to 255.
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
Configuring IP Tunnels
8-7