OK, so I'm fairly new to the game but I've heard this has been done. I want to create my own private wireless network off of a wireless signal coming from somewhere else.

So the chain goes:

Incoming wireless connection -> ath0 -> Hardy

That was the easy part. Now that I have the connection, I want to go:

Hardy -> eth0 -> dd-wrt

So essentially I want to turn an incoming wireless connection coming into my server into an outgoing ethernet connection to my dd-wrt. The idea is so I can use an un-encrypted wireless signal and convert it into my own private encrypted wireless network.

I have looked at the other threads and there are some similar ones but I couldn't piece them together to do what I want. Has anybody done this?