multicastport
UDP port for the engine's multicast socket. Normal servers never need to change it.
multicastport <port> Examples
multicastport 27025 The default.
Arguments
portRequired- UDP port number.
What it does
The engine reserves this port for multicast traffic. A regular Counter-Strike server does not use multicast, so you can leave it at the default.
Run it on your server
On a SLASHPLAY server, type it in the Console tab of the server page; the reply shows right under it. A value set there lasts until the server restarts. To keep it, add the line to cstrike/server.cfg. New to this? Start a CS 1.6 server first.
Your own
CS 1.6 server.
From $0.03 an hour, only while it runs. New accounts get 6 free tokens.