Just to correct a slight misconception (or maybe hasty fingers): > SLIP is layered onto IP the way TCP is layered onto IP; Actually, IP is layered onto SLIP the way IP is layered onto an Ethernet driver. -- John Owens john at jetson.UPMA.MD.US uunet!jetson!john +1 301 249 6000 john%jetson.uucp at uunet.uu.net