Rednet Channels

I have a system of computers that all need to talk to each other. I want to know if I can just use a channel, instead of typing all the ids. I've considered the idea of a central computer that sends out what it receives to all the listed computers, but I would have to add new computers every time I add a new computer. Any ideas?

Take a look at http://computercraft...Modem_%28API%29 - It should be what you need - Using modems directly instead of rednet you can receive and send on any channel you decide.

Great! Exactly what I needed. Thanks wojbie