» PPPTCP This is a peer-to-peer IP tunnel program that runs a PPP connection over an arbitrary TCP port. http://www.devolution.com/~slouken/projects/ppptcp/
» SLIP/PPP Homepage Documentation for setting up a SLIP/PPP connection from your home computer to the Internet. http://sunsite.nus.edu.sg/pub/slip-ppp/
» The Direct Connection Driver, documentation, and guides for null-modem PPP connectivity. http://www.kevin-wells.com/net/