STUN Basic with Multiple Tunnels

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Updated:September 9, 2005

Document ID:12275

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Introduction

Prerequisites

Requirements

Components Used

Conventions

Configure

Network Diagram

Configurations

Verify

Troubleshoot

Related Information

Introduction

This document provides a sample configuration, which shows that there can be multiple tunnels within a single IP network.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

This document is not restricted to specific software and hardware versions.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Configure

In this section, you are presented with the information to configure the features described in this document.

Note: Use the Command Lookup Tool (registered customers only) to find more information on the commands used in this document.

Network Diagram

This document uses this network setup:

Configurations

This document uses these configurations:

Router Configurations
Router A	stun peer-name 1.0.0.1 stun protocol-group 9 basic stun protocol-group 13 basic interface serial 0 encapsulation stun stun group 9 stun route all tcp 5.0.0.1 interface serial 1 encapsulation stun stun group 13 stun route all tcp 5.0.0.1 interface loopback 0 ip address 1.0.0.1 255.255.255.0	Router B	stun peer-name 5.0.0.1 stun protocol-group 9 basic stun protocol-group 13 basic interface serial 0 encapsulation stun stun group 9 stun route all tcp 1.0.0.1 interface serial 1 encapsulation stun stun group 13 stun route all tcp 1.0.0.1 interface loopback 0 ip address 5.0.0.1 255.255.255.0

Router Configurations

Router A

stun peer-name 1.0.0.1 
stun protocol-group 9 basic 
stun protocol-group 13 basic 
interface serial 0 
encapsulation stun 
stun group 9 
stun route all tcp 5.0.0.1 

interface serial 1 
encapsulation stun 
stun group 13 
stun route all tcp 5.0.0.1 

interface loopback 0 
ip address 1.0.0.1 255.255.255.0

Router B

stun peer-name 5.0.0.1 
stun protocol-group 9 basic 
stun protocol-group 13 basic 
interface serial 0 
encapsulation stun 
stun group 9 
stun route all tcp 1.0.0.1 

interface serial 1 
encapsulation stun 
stun group 13 
stun route all tcp 1.0.0.1 

interface loopback 0 
ip address 5.0.0.1 255.255.255.0

Note: Clocking, although not shown in the diagram, needs to be supplied by the DCE. The easiest way to do this is to use a Cisco DCE cable at the router side and the configure clockrate command. For simplicity, IP routing and WAN configurations are not shown.

This configuration shows that there can be multiple tunnels within a single IP network. Note that the tunnels extend or replace pre-existing serial lines. There is a one-to-one correlation between the hardware and the tunnels in this example. For more details, refer to Configuring and Troubleshooting Serial Tunneling (STUN).