When hlds or a listen server is started, it sends and outgoing packet using local port 27015 (assuming you did not manually change this). If the port is not forwarded to the box, it will get translated by the router, so that it presents a different port number to the outside world. What a some people do not realize is that you do not need to forward any ports at all to run a HL server. Forwarding 27015 merely lets others join your server using that port. The master list and therefore the Steam game browser (and Kali and others as well) know what port your server is on, and will make the connection to the proper port when they try to join.
Therefore, even if you don't have any ports forwarded, if you router/firewall allows outgoing ports to be open, all you have to do is start hlds or a listen server, and people will see it and can join it. AFAIK, this doesn't have anything to do with NAT Transparency. His NAT/router may be restrictive, but it is still allowing outoing ports to be opened up. ----- Original Message ----- From: "Alfred Reynolds" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, October 11, 2004 10:51 AM Subject: RE: [hlds] NAT transparency with listenservers > I am not sure what "NAT transparency" is but HL2 doesn't implement it. > Check that your router isn't port forwarding or that WinXP isn't using > UPnP to request an open port. > > - Alfred > > > ----Original Message---- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of David Fencik > Sent: Sunday, October 10, 2004 8:19 PM To: [EMAIL PROTECTED] > Subject: RE: [hlds] NAT transparency with listenservers > > > How big is your network? > > > > Dave > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of AgentHH > > Sent: Sunday, October 10, 2004 10:44 PM > > To: [EMAIL PROTECTED] > > Subject: [hlds] NAT transparency with listenservers > > > > So, I started a listenserver to mess around in the new levels. > > I'm behind a fairly restrictive NAT/router with nothing forwarded to > > my comp. Much to my surprise, some guy joined my game. Is there some > > kind of NAT transparency with HL2, much like that of UT2K4? > > > > --AgentHH > > > > _______________________________________________ > > To unsubscribe, edit your list preferences, or view the list > > archives, please visit: > > http://list.valvesoftware.com/mailman/listinfo/hlds > > > > > > _______________________________________________ > > To unsubscribe, edit your list preferences, or view the list > > archives, please visit: > > http://list.valvesoftware.com/mailman/listinfo/hlds > > _______________________________________________ > To unsubscribe, edit your list preferences, or view the list archives, please visit: > http://list.valvesoftware.com/mailman/listinfo/hlds > _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds
