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Linux 2.4 NAT HOWTO

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

$Revision: 1.2 $ $Date: 2002/02/19 11:33:42 $

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

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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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