VPN on a shared router connection?

[ChromeFoundry]

7. As long as the router

supports VPN Passthrough, and most 2Wire routers do, you should not have a problem setting up a VPN from a single workstation in your Private LAN, through a shared NAT address, through your ISP to your VPN provider.

This is assuming you are only wanting to encrypt traffic from your workstation to your VPN provider.

yourPC => router Lan Port => router => NAT address => router WAN Port => ISP => Internet => VPN Server

If you wanted to encrypt all local traffic through the VPN, you'll need additional configuration changes, and probably an additional workstation (or router running dd-wrt, or the like) serving as a bridge to the VPN tunnel... this would require substantial changes to your existing network configuration, but would be transparent to the other workstations sharing the connection when configured correctly.

yourPC => \
PC #2 => -- > router => VPN tunnel => NAT address => router WAN Port => ISP => Internet => VPN Server
PC #3 => /