Can an out side cumputer join a LAN game at my house?

If I am having a local game at my house with 3 or 4 computers, can a friend from another state join over the internet from another state.
B4NAsked:
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Bill_FleuryCommented:
Depends on the bandwidth requirement for it, but typically yes.  Set up an incoming VPN connection on your XP machine for him to connect to your lan with.

http:Q_20678557.html may be useful to you in attempting to set it up.
gkumaranCommented:
If you already have a Broadband Router connected to the Internet, then you can configure it to forward the ports used by the gaming application from WAN to LAN IP (which hosts the game).

By this your friend in the Internet can use the WAN IP of your Internet connection and get connected to the game.

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B4NAuthor Commented:
I have set up the VPN  connection, now how does the other computer contact mine. Do I have th provide my IP Address? And where would I find it ,  thanks
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B4NAuthor Commented:
Where do I find the WAN IP Address
Bill_FleuryCommented:
You can easily find this by going to:

http://www.whatismyip.com

As well, you will have to forward port 1723 back from your router to the computer you are using as the VPN server.  There should also be a PPTP Passthru checkbox to put a check mark in.
B4NAuthor Commented:
Im working on this now, how do I forward the port?
Bill_FleuryCommented:
It is done through your router configuration page.  What router do you have?
B4NAuthor Commented:
Linksys BEFSR41
Bill_FleuryCommented:
THen you should be able to go to the advanced menu, and in the virtual servers tab you can forward your port.
B4NAuthor Commented:
OK did that, getting error when trying to connect, where is the PPTP Passthru check box?
Bill_FleuryCommented:
What error are you getting.
B4NAuthor Commented:
I went to linksys web site and they gave me some direction. I forwarded the ports, and they sai to set an IP Adress not automatic. I have not been able to test with an outside computer yet. I will keep you posted.  Thanks for the help.
B4NAuthor Commented:
error 800
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