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This is very important for security reasons: leaving ports open is not recommended for extended periods of time when it can be easily avoided. Also note that some routers forward ports by range in this case, simply forward from 5029 to 5029.Ĥ) Enable the port forwarding and save your changes.Ħ) When you're done playing, turn off the forwarding and (again) save changes to your router. "Applications and Gaming" is a good place to look, if you can't find a more obvious "Forwarding" tab. You can also find this information by accessing your network connection (in control panel, or in the taskbar) and then viewing the support tab.ģ) Locate the tab which allows you to forward ports and forward UDP port 5029 to your private IP address. You'll see your machine name followed by your private IP address. One way to find it is to consult the LAN table of your router, often located on the "administration" tab. Check out or ask Google for your specific model.Ģ) Find your private IP address. Often, this address is 192.168.1.1 but it depends on your manufacturer. This is a six-step process:ġ) Navigate to your router's configuration IP and enter the password. In order to host, you must forward this port through your router. The solution (or, at least, a solution): Port Forwardingīy default, ZDoom uses UDP port 5029 for multiplayer games (this can be changed using the -port command-see Command line parameters for more info).
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The result is a ZDoom game that never starts-this is a bummer. However, when you host a multiplayer game, you haven't sent any information to your friends yet, so your router does not know to allow them in. Because you sent something to first, your router will allow traffic (the webpage) back from. the data is "solicited").įor example, when you connect to, your browser sends information to and sends you the webpage (). The following is a brief and oversimplified description:Ī NAT Router only allows information in from IPs to which you have already sent information (i.e. To understand Port Forwarding, you must first understand a little about how NAT Routers work. Port Forwarding allows a user to host a multiplayer internet game from behind a NAT Router.