Bittorrent and VPN through router

[obeseotron]

When I got home at the end of the semester I found my network a complete mess. Currently the cable modem is connected to my father's PC, which has two NICs, the other one is connected to a hub. ICS is turned on, and it works for the most part, unless he connects to work through his VPN. Connected to the hub now is my computer, a mac, and a cable running to a Linksys wireless/wired router that is connected to my mom's PC through ethernet and also to her laptop over 802.11g. The current situation is garbage, most of the computers can't see each other because they are behind different firewalls, I get booted offline everytime he connects to VPN and VPN and bittorrent don't work if I just connect everyone to the router.

I want to have all the PC's linked through the router and the router hooked to the cable modem, so that files can be shared between all of the computers, but I'd also like bittorrent to work on my computer and VPN to work on his. Anyone have any suggestions for how to work this out?

 

[AkumaBao]

And you tried hooking the router into the 2nd NIC in your Father's system to try to share the connection? If the VPN client is making all connection go through the tunnel, you should be able to setup his system to only allow the shared network destinations on the other side to go through the tunnel, but it should be that way to begin with. Try that setup, but make sure that your router WAN net, and LAN networks are different networks (i.e. 192.168.0.0/24 192.168.1.0/24).