How to open ports for Xbox

[Yakov]

Hi all,
I can connect my Xbox 360 to internet with my router. But i cannot connect some uses with router. I can connect them directly with the modem. I heard it can be done with opening ports of router. Can anyone help me with this?

Thank you for any suggestion.

[Mr. Boo Bear]

Sometimes you cannot join any friend or they can't join you. It can happen if there is a firewall or a router between the Xbox console and the networking hardware. You may have to make configuration changes to enable communication on the specific network ports that are required by Xbox LIVE.

[Mario2]

Check out the following threads on how to open ports:
How to open ports?
Open and routing ports
How to open ports for Warcraft 3
And open these ports:

• TCP 80
• UDP 88
• UDP 3074
• TCP 3074
• UDP 53
• TCP 53

[Hitman22]

Check out http://www.portforward.com/ Select your router and follow the instructions. Also check this Microsoft's KB article:Firewall ports that must be open to use your Xbox 360 console as a Media Center Extender