DCC is a file transfer mechanism on top of IRC that needs a direct data channel between both parties similar to FTP. Difficult behind NAT devices and firewalls. The OP probably needs to port-forward a certain range from their external address to their PC. I don't know if DCC for multiple devices behind a NAT is possible at all. These are protocols from the stone age of the Internet. BTDT.That's what I remember from the top of my head. More detailled help would require more research on my part, so for now I'm just bouncing these hints back to you.
Quote from: Patrick M. Hausen on July 26, 2023, 11:18:34 pmDCC is a file transfer mechanism on top of IRC that needs a direct data channel between both parties similar to FTP. Difficult behind NAT devices and firewalls. The OP probably needs to port-forward a certain range from their external address to their PC. I don't know if DCC for multiple devices behind a NAT is possible at all. These are protocols from the stone age of the Internet. BTDT.That's what I remember from the top of my head. More detailled help would require more research on my part, so for now I'm just bouncing these hints back to you. Yeah, I haven't dealt with DCC before. I'm just trying to understand what they currently have configured, what is and isn't working, etc. People love to twiddle 15 different knobs and only tell you about one.
Regarding the security risks: If I open all ports on the source but only some on the destination what will an attacker see? Open doors? Slightly open doors? Nothing unless the connection is used?I am trying to understand what would happen because I don't need a firewall if I open everything up just out of convenience