<html><head><METAhttp-equiv="Content-Type"content="text/html; charset=utf-8"/><linkmedia="all"rel="stylesheet"href="../styles/TransBody.css"/><title>Port Forwarding FAQ</title></head><body><divid="mainbox"><divid="banner"><aname="menus"></a><divid="machelp"><aclass="bread"href="../index.html">Transmission Help</a></div><divid="index"><aclass="leftborder"href="../html/index2.html">Index</a></div></div></div><divid="pagetitle"><h1>How do I Port Forward?</h1></div><p>If your router supports NAT-PMP, UPnP, or you have Apple AirPort, Transmission can map its port automatically. Most routers manufactured since 2001 have this feature.
<divsummary="To do this"id="taskbox"><ol><li>Open Transmission. </li><li>Go to Preferences -> Network, and check 'Automatically map port'. </li><li>If you get a green dot and 'Port is Open' then you have successfully port forwarded!</li><p>If you get a red dot and the message 'Port is closed', <ahref="troubleshoot.html">click here</a>.</li></ol></div><p>If you don't have a compatible router, it is simple to forward Transmission's port manually. For instructions <ahref="pfrouter.html">click here</a>.</li><p>If you don't use a router, and your modem is directly connected to your computer, you'll need to open Transmission's port in the Mac OS X firewall. For instructions <ahref="pffirewall.html">click here</a>.<br><br><b>Note:</b> It is highly recommended you enable the Mac OS X firewall if you are not using a router.</li><p>Keep in mind that many DSL modems also function as routers, so port forwarding may still be necessary, even though your computer is directly connected to the modem.
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