Quote Originally Posted by nihil
Well, if you don't know who owns the router you doubtless do not have permission to use it?

That leaves you with three problems:

1. Is it a trap?
2. As it is unsecured what malware is lurking on it? It would be a reasonable assumption that the rest of the system is unsecure as well?
3. Are you already "owned"
Nihil is right your'e owned..or he do have a ad-hoc connection running between pc's (peer to peer).The reason why he's network is not secure because WEP encryption don't work with ad-hoc networks.
Get yourself a acces point.