NAT or firewall help

Discussion in 'Networking and Computer Security' started by someblackguy7130, May 7, 2006.

  1. someblackguy7130

    someblackguy7130 Geek Trainee

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    hi i am trying to use peertopeer softwares and bittorrents but they are all very slow. they all say i have some NAT/Firewall problem. is it a service pack 2 update or something? this is really annoying me
     
  2. pelvis_3

    pelvis_3 HWF Member For Life

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    You will probably have to setup Port Forwarding on your Router to allow it access. Also, your Firewall will have to be configured in a similar way.
     
  3. someblackguy7130

    someblackguy7130 Geek Trainee

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    yea i figured i had to do that but im not sure how. can u plz tell me how to do it? i have a Dl-624 D-Link router. if it is the problem with the router than i also have a Linksys BEFW11S4 v.2 as a backup but that is the one i usually dont use because its not a wireless g. thx
     
  4. Anti-Trend

    Anti-Trend Nonconformist Geek

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    If you are using both routers in-line, that is called double-NAT'ing and you will have various problems with your home-grade routers in such a configuration.

    As for the port forwarding, first you need to assign your PC a static IP address. Without a static IP, port forwarding will break the first time your PC's address changes. This can either be accomplished by assigning the address from within the PC itself or else, if the router supports it, through a fixed lease in the DCHP settings of your router. The latter scenario is preferrable if your router has such a feature.

    Next, you will need to forward the necessary ports on your router to the necessary ports on your PC. The source port will be the actual port you want to show to the outside world, the destination port is the actual open port on your PC which you'd like to map to the source port, and the destination IP is the IP address of your PC.
     
  5. someblackguy7130

    someblackguy7130 Geek Trainee

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    Thank You very much, i did have both routers connected at once and once i look my old one out it works perfectly. thx alot
     
  6. Anti-Trend

    Anti-Trend Nonconformist Geek

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    No problem, glad it was that simple.
     

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