It turns out this is easier than I thought. All you have to do is change the connection to "Shared to other computers" in the IPv4 settings and "Ignore" in the IPv6 settings. When I first tried I came across the constant reconnecting problem mentioned in the following bug: <a href="https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/881284">https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/881284</a> At the time I just figured I'd done something wrong, but after reading that bug report it's a very simple process. <div class="gmail_quote">On 18 March 2012 17:39, Yorvyk <<a href="mailto:yorvik.ubunto@googlemail.com">yorvik.ubunto@googlemail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On Sun, 18 Mar 2012 14:46:41 +0000 "Joe" <<a href="mailto:yothsoggoth@gmail.com">yothsoggoth@gmail.com</a>> wrote: > Hi all, > > In my university halls we have to use 802.11x authentication to connect to the internet, and so can only connect on a computer. > I would like to connect my xbox 360 to the internet too, and I'm told this can be done by sharing an internet connection from the computer. > > I'm told this is a fairly straightforward task in Windows, but as I use Ubuntu 99% of the time I was hoping someone would be able to help me figure out how to do it using that. > > I have two network cards in my computer, one of which the internet connection goes into, the other I can use to connect the xbox. > I already have a crossover cable, too. > So if anyone knows how to do it, that would be great! > </div></div>The last time I did this, a few years back, I used firestarter from the repos. -- Yorvyk -- <a href="mailto:ubuntu-uk@lists.ubuntu.com">ubuntu-uk@lists.ubuntu.com</a> <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk</a> <a href="https://wiki.ubuntu.com/UKTeam/" target="_blank">https://wiki.ubuntu.com/UKTeam/</a> </blockquote></div>