How to set up DHCP-configured access through a Linux box?

Posted by marcusw on Super User See other posts from Super User or by marcusw
Published on 2010-03-26T22:29:07Z Indexed on 2010/03/26 22:33 UTC
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Filed under:

networking

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routing

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dhcp

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linux

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crossover-cable

I would like an old desktop box to use my laptop as a router to access the internet. Here is my setup:

network diagram

I have one ethernet port in the side of my laptop which I want to use to get internet access to my desktop computer. The laptop is connected to the LAN via a wireless link. Both systems run Linux. The desktop autoconfigures itself using DHCP. The laptop is a Kubuntu system. I do not have any crossover cables, though wireshark on the laptop sees the DHCP requests from the desktop just fine, so I doubt that I need one.

What do I have to do to make this work?

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