reply to mikev
Re: Common Router Security Flaw - You Want to Check This! This has nothing to do with the LAN UPnP setting in the router. It's a bug, not a setting, that opens WAN UPnP to the outside world in some routers.
(EDIT TO CORRECT: Yes, turning LAN UPnP off will apparently disable the WAN bug if you have it - didn't mean to leave the impression it wouldn't)