In this example, we will create a Port Forwarding entry for DCC (Direct Client-to-Client), a file transfer method which is a sub-protocol of Internet Relay Chat (IRC). This enables IRC peers to exchange files or perform non-relayed chats. Most clients will allow you to use any arbitrary port range, but ports over 5000 are commonly used, and we will use these ports. DCC uses the TCP protocol.
- Navigate to Firewall |NAT. Port Forward is the default tab, so you should not have to click on that tab. Click on one of the Add buttons to add a port forwarding entry.
- For Protocol, keep the default of TCP. Destination port range should be set to 5200 for the From port and 5250 for the To port. Set Redirect target IP to the ...
