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Cisco Compatible Micro Router Series

Compatible Systems Tech Notes: PassThruRanges and Routing

Document ID: 17677



Contents

Introduction
Prerequisites
      Requirements
Affected Products
Affected Versions
More Information
Related Information

Introduction

You can only declare one PassThruRange for each Class C network or the router does not route any of the multiple PassThruRanges you have entered.

Prerequisites

Requirements

There are no specific requirements for this document.

Affected Products

1200i, 1220i, 1250i, 1270i, 2600i, 2200R, 2220R, 2250R, 2270R, 3500R, 4000S, VSR-2, VSR-8, IntraPort 1, IntraPort 2, IntraPort 2+, IntraPort Enterprise-2, IntraPort Enterprise-8, IntraPort Carrier-2, and IntraPort Carrier-8

Affected Versions

All versions

More Information

You can only declare one PassThruRange for each Class C network.

Note: These are only partial NAT Global configurations.

Note: For example:

[ NAT Global ] 
 	PassThruRange=204.144.171.168/29  

However, this sample output does not work. Both PassThruRanges are not routed:

[ NAT Global ] 
 	PassThruRange=204.144.171.168/29 
 	PassThruRange=204.144.171.96/29  

This solution works:

[ NAT Global ] 
 	PassThruRange=204.144.171.0/24 

There is no reason why you would not want to declare the entire available network as a PassThru. If it overlaps with the ExternalRange, the ExternalRange takes precedence. If you do not want to let a portion out, put in a filter.


Related Information



Updated: May 03, 2004 Document ID: 17677