Hi. I am very interested in this possibility.

I have a notebook here that is serving as a proxy in combination with a Wifi router. The notebook has Internet access from a primary router and is connected to a secondary Wifi router via Ethernet. The secondary Wifi router then serves several other devices over Wifi, with proxy benefits.

I am not very happy with this, I've been thinking about getting an old computer and turn it into the proxy, so the notebook is relieved. All I need is iptables and Privoxy, so the computer can be very basic and cheap.

But then I remembered my old Nokia N900 is sitting in a drawer, not being used... And it runs Linux... I wonder if it is possible to put it in place of the notebook to be the proxy. Maybe it is possible. I just need it to get Wifi signal from the primary router and share it with the secondary Wifi router through... Ethernet.

Now there comes the problem. The N900 doesn't have any Ethernet port. I thought that maybe I could use an Ethernet/USB adapter, which may possibly work or not, but even if it does, my biggest concern is that I would need the USB port for two things: the Ethernet adapter and powering the N900! I don't want it to run on battery, I want it to be always plugged to the mains.

So what do you think? Any solution to this conundrum?