> So recently Verizon has stopped letting me do free tethering and I've > been looking for a replacement. Apparently all of the free ISPs I can > find all require that you use their shitty Windows program to connect, > so I decided, "I have a phone line, a modem and an internet connection, > maybe I can make my own ISP". > > Basically, I want to take a computer with a dialup modem and an ethernet > connection to a cable modem and make it so whenever someone calls, the > computer picks up and acts like an ISP (requests username/password, then > forwards all requests to the cable modem). > > Obviously, it wouldn't be that great (added latency, phone line won't > work while it's active), but it's at least theoretically possible. I'm > just wondering if there's software designed to do it. pppd will do it, you can read http://www.tldp.org/HOWTO/PPP-HOWTO/ or similar generally you'll need to know routing and networking, pppd options and chat options. Then you need to set pppd/chat (pppd starts chat to control the modem) to wait for a RING, answer the modem, then pppd takes over and establishes the ppp session. -- damjan