Direct Serial Connections between Linux and NT?

scobiej asks: "I've been trying for some time now to get a direct serial connection between my Linux laptop and an NT workstation box running RAS to work but to no avail. I've read the documentation etc. but I cann't get PPP (Linux client) to work. I've recompiled the PPP package (Version 2.3.5) with MS-CHAP enabled but I still cann't get it to work. The scenario is like this. The office network consists of NT workstations, servers, unix boxes etc. all running on token ring (!!!) and all I want to do is get my laptop connected to it somehow so I can transfer files etc. (or even use VNC). I'm NOT splashing out on a token ring card as I would never use it anywhere else. "