Ubuntu as a wireless 80211g/n access point/router

Following relatively recent improvements in the Linux wireless stack and driver support it is now possible to setup a Linux machine as an access point, even if you don’t have an Atheros chipset (which was historically the case). Support is patchy but I would say there is a good chance you can do this if you have purchased a laptop with built in wireless in the last 2 years. It is even possible to set one up with a USB wireless adapter (which even Madwifi couldn’t do) if you have an Ralink chipset.

Why would you want to do this? Well, there aren’t that many reasons considering ISP’s routinely hand out wireless routers these days, but I will give you a couple:-

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Using a Novatel XUA-1 and X950D in Ubuntu

I read an article recently that suggested using a saucepan as a mobile broadband booster and it peeked my interest enough to give it a try. In case I needed to use my Novatel X950D express card with another machine I had already purchased a Novatel XUA-1 USB to Express Card 36 adapter. This, therefore, gave me a way of placing the modem in the middle of a saucepan, which would be nigh on impossible were the modem in it’s rightful express card slot in the laptop.

Unfortunately, however, due to a production issue at the plant my XUA-1 came wired as “bus powered”, which effectively means it tells the operating system it only has 100ma of power available even though that isn’t true. Subsequently the OS – be it Windows or Linux – won’t then allow the X950D to work in conjunction with the XUA-1.

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