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Linux 2.4 NAT HOWTO

Rusty Russell, mailing list netfilter@lists.samba.org

$Revision: 1.15 $ $Date: 2001/07/29 03:59:37 $

This document describes how to do masquerading, transparent proxying, port forwarding, and other forms of Network Address Translations with the 2.4 Linux Kernels.

1. Introduction

2. Where is the official Web Site and List?

• 2.1 What is Network Address Translation?
• 2.2 Why Would I Want To Do NAT?

3. The Two Types of NAT

4. Quick Translation From 2.0 and 2.2 Kernels

• 4.1 I just want masquerading! Help!
• 4.2 What about ipmasqadm?

5. Controlling What To NAT

• 5.1 Simple Selection using iptables
• 5.2 Finer Points Of Selecting What Packets To Mangle

6. Saying How To Mangle The Packets

• 6.1 Source NAT
• 6.2 Destination NAT
• 6.3 Mappings In Depth

7. Special Protocols

8. Caveats on NAT

9. Source NAT and Routing

10. Destination NAT Onto the Same Network

11. Thanks

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