I tried setting up a PPP connection via the PPP port on the R1. The goal here was to see if it was possible to set up a PPP on a serial connection without using 2 modems back to back. The reason is a customer who’s cusomter base already has his equipment using serial via 2 - RS485 converters back to back. I think it is a lousy way to connect, but he’s the customer. Anyway, does a PPP driver such as in windows have to have a modem (with the exception of the modem responses) to actually make a PPP connection to the R1/R2? I am using 9.1b with an R2. If I understand what a PPP connection is, it is simply a means of handshaking and simulating an ethernet connection over essentially a serial network, right?