Linux IP Masquerade mini HOWTO

Linux IP Masquerade mini HOWTO

Ambrose Au, ; David Ranch,

v1.50, 7 February 1999

This document describes how to enable IP masquerade feature on a Linux host, allowing connected computers that do not have registered Internet IP addresses to connect to the Internet through your Linux box.

1. Introduction

1.1 Introduction
1.2 Foreword, Feedback & Credits
1.3 Copyright & Disclaimer

2. Background Knowledge

2.1 What is IP Masquerade?
2.2 Current Status
2.3 Who Can Benefit From IP Masquerade?
2.4 Who Doesn't Need IP Masquerade?
2.5 How IP Masquerade Works?
2.6 Requirements for Using IP Masquerade on Linux 2.2.x
2.7 Requirements for Using IP Masquerade on Linux 2.0.x

3. Setting Up IP Masquerade

3.1 Compiling the Kernel for IP Masquerade Support
3.2 Assigning Private Network IP Address
3.3 Configuring the OTHER machines
3.4 Configuring IP Forwarding Policies
3.5 Testing IP Masquerade

4. Other IP Masquerade Issues and Software Support

4.1 Problems with IP Masquerade
4.2 Incoming services
4.3 Supported Client Software and Other Setup Note
4.4 IP Firewall Administration (ipfwadm)
4.5 IP Firewalling Chains (ipchains)
4.6 IP Masquerade and Demand-Dial-Up
4.7 IPautofw Packet Fowarder
4.8 CU-SeeMe and Linux IP-Masquerade Teeny How-To
4.9 Other Related Tools

5. Frequently Asked Questions

5.1 Does IP Masquerade work with dynamically assigned IP?
5.2 Can I use cable modem, DSL, satellite link, etc. to connect to the Internet and use IP Masquerade?
5.3 What applications are supported with IP Masquerade?
5.4 How can I get IP Masquerade running on Redhat, Debian, Slackware, etc.?
5.5 I've just upgraded to the 2.2.x kernels, why is IP Masquerade not working?
5.6 I've just upgraded to the kernels 2.0.30 or later, why is IP Masquerade not working?
5.7 I can't get IP Masquerade to work! What options do I have for Windows Platform?
5.8 I've checked all my configurations, I still can't get IP Masquerade to work. What should I do?
5.9 How do I join the IP Masquerade Mailing List?
5.10 I want to help on IP Masquerade development. What can I do?
5.11 Where can I find more information on IP Masquerade?
5.12 I want to translate this HOWTO to another language, what should I do?
5.13 This HOWTO seems out of date, are you still maintaining it? Can you include more information on ...? Are there any plans for making this better?
5.14 I got IP Masquerade working, it'' great! I want to thank you guys, what can I do?

6. Miscellaneous

6.1 Useful Resources
6.2 Linux IP Masquerade Resource
6.3 Thanks to
6.4 Reference


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