title: Perforce with dynamic ip
body: <p>I've set up a perforce server on an old always-on laptop which is always assigned a reserved address by the router. I have have an account at no-ip.com, which sends to my router, which in turn redirects port 1666 requests to this laptop.</p>
  
  <p>when i try to set p4port to this no-ip.org address, that part is fine, but when i run p4d i get:</p>
  
  <p>Perforce server error:
          Listen USERNAME.no-ip.org:1666 failed.
          TCP listen on USERNAME.no-ip.org:1666 failed.
          bind: USERNAME.no-ip.org:1666: WSAEADDRNOTAVAIL</p>
  
  <p>Whereas if i just set the p4port to 192.168.0.6 i can access the server from behind the network using this one.. but i'd rather be able to access it externally as well..</p>
  
  <p>I've read one other post on here in which someone had the same setup working (http://stackoverflow.com/questions/2397642/online-perforce-repositories , user was gaminghorror) but s/he hadn't gone into as much depth as I obviously needed..</p>
  
  <p>have tried with router and windows xp firewalls off, and xp and router firewalls forward 1666 to this local ip</p>
  
  <p>cheers!</p>