On Fri, 18 Jun 1999, Daniel ANDRE wrote: > I will use these modules only to connect to one port on the server on > which a program of my design is listenning. Gidday Daniel, I think that if you are going to use only one port on one server on your machine, then just use a serial connection. This would involve setting up an incoming modem and mgetty on your 'server'. This means your 8051 or HC11 would only have to send a user name and password, which mgetty parses then directs all data to your server program. No networking, no protocols, other than those hidden inside the modem (which are a lot I think..). My 2 cents Joshua Lamorie System Designer Xiphos Technologies Inc.