Direct Client Connection
DCC uses direct TCP connections between the clients taking part to carry data. There is no flood control, so packets can be sent at full speed, and there is no dependance on server links (or load imposed on them). In addition, since only the initial handshake for DCC conections is passed through the IRC network, it is impossible for Operators with cracked servers to spy on DCC messages.
The following DCC connection types are known to IRCII:
Type Purpose Argument CHAT To carry a secure conversation the string "chat" SEND To send a file to the recipient the file name
Also See: IRC