Using an old router as a wireless adaptor

[willhub]

I have a sky box, using a cable is not an option, so I was to plug an old Netgear router I have into it and have it connect to the Sky router, is this possible?

If so, how can I do it?

I've done it in the past with 2 Netgear routers and it worked without 3rd party firmware, I'd like to do it without third party firmware this time, I can't remember how I did it as it was ages ago and CyberMav who I don't believe is on here anymore helped me.

Thanks.