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Can't get the NAT to be "open"

Discussion in 'Cisco/Linksys Wireless Routers' started by Private-Cowboy, Mar 9, 2006.

  1. Private-Cowboy

    Private-Cowboy Network Guru Member


    I hooked up my Xbox360 to my network and it works nicely so far. There's one slight problem though, I always get a "moderate" NAT no matter what I do. I tried Port-Forwarding of the well known ports to the static IP of my 360 and it doesn't work. I also tried to set up a DMZ on that IP, no luck. I can't get the NAT to be "open" with the result that some Multiplayer-Sessions are not joinable for me. Most are since "moderate" is not as bad as a "strict" NAT but when you get kicked out of 33-50% of the games because ot that it gets annoying.

    Is there any way to get the NAT to be open??? Or is this a firmware issue meaning that some firmwares (inlcuding the latest form Linksys I'm running in my WRT-54G v3.1) can't do "open" NAT no matter what.

    Please help.
  2. swinn

    swinn Network Guru Member

    Both my WRT54G v2.0 and WRT54GS v3.0 using HyperWRT have had no problems with the XBox. I haven't tried the Linksys firmware since HyperWRT v2.0 came out (now using Thibor 14). All I've ever had to do was make sure that UPnP was enabled on the router. My XBox and XBox 360 have had no problems telling the router what ports to open and my 360 does report that NAT is open.

  3. t4thfavor

    t4thfavor Network Guru Member

    does the 360 run what is called Kaid? i know regular xbox required it to work effectively.
  4. swinn

    swinn Network Guru Member

    Kai is used to play system link (LAN) games over the Internet. He is referring to Xbox Live.
  5. Private-Cowboy

    Private-Cowboy Network Guru Member

    Ok I solved the problem. Don't know why but I disabled port-forwarding to my Xbox360 static IP and disabled the static IP for the Xbox360 completely. The Xbox360 is now using dynamic IP assigned by the DHCP server of my WRT54G and it works perfectly without any port-forwarding at all or DMZ. I'm a bit suprised that the NAT is open that way since the important ports are no longer visible from the ouside world but who cares. I don't understand that though, that with static IP and completely open (DMZ) I get a moderate NAT and when hidden (no DMZ or port-forwarding) and hidden with dynamic IP I get the open NAT. I always thought it should be the other way round??? But hey, if this works I'm happy. My Xbox doesn't need a static IP.

    UPnP is on anyway (always has been on) beacuse I need that for my Xbox360 to work as a WinMCE Extender (streaming WMV-HD over WiFi :rockon: )
  6. EvlD99

    EvlD99 Network Guru Member

    I'm glad I found this post. I will test it tonight. I assume Tofu should act in a similar manner?

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