[RESOLVED] Only allow 1 copmuter to access internet through router

[ididntdoit]

I have a wireless router and 2 computers. I want the two computers to be able to be on a network together to share data, but only one of them to be able to access the Internet. I want the other to be completely safe and protected from the Internet. (Please don't tell me to just install firewall software...) I thought that this is what DMZ was, but now I think I'm wrong. How can I achieve this?

Thanks in advance

BTW router is a DLink DIR-615, a laptop with WinXP Pro(can access internet), and computer with WinXP Pro(want to block from Internet, but not from LAN)

[mendhak]

Change the default gateway on the XP PC so that it can't access the Internet.

[ididntdoit]

I thought of that, but that doesn't stop hackers coming in from the Internet I don;t think...

[spazztic]

Check your router settings, most will still allow your XP PC to get an IP address through DHCP but you can block WAN routing to and from.

[dbasnett]

http://www.support.dlink.com/emulato...ort_adv.htm#08

[Lord Orwell]

DMZ simply means that it forwards every port for a particular computer. It has nothing to do with preventing other computers accessing.

[ididntdoit]

Thank you dbasnett - that's exactly what I was looking for - I must have skimmed over it when looking for DMZ

And Thanks Orwell, I realized that after reading a bit more about it. The description of DMZ on my own router is very poor...

[Lord Orwell]

yes they are. I figured it out myself reading a reference. It doesn't help that it is used to mean two different things. It is also used as a reference to a computer that gives other computers access to the internet in a network.

[penagate]

A demarcation zone (DMZ) is a name for a secure 'bubble' within a local area network which has specific firewall rules applied to it to severely restrict traffic which crosses the boundaries of the DMZ.

I don't like citing Wikipedia but their entry on this is a pretty good summary.
http://en.wikipedia.org/wiki/Demilit...one_(computing)