IRC - Internet Relay Chat

There are no special settings required to run an IRC client . Even DCC (Direct Chat/Send(Receive) Files) will work automatically if you use the standard port 6667.

To run the IRC server behind NAT please map the following ports:

Protocol: TCP

Listen IP: unspecified or IP you want to use for IRC server

Listen Port: 6667

Destination IP: IP address of PC with your IRC server

Destination Port: 6667

Using anything other than the standard port will cause DCC to not work.