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Old 01-16-2005, 10:13 PM   #1
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Registered: May 2004
Location: Brisbane, Queensland Australia
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Share Internet Connection

Ive setup a redhat enterprise 3 server to be an internet gateway but ive run into some trouble in getting it to be a gateway.

The setup is:

Linux box with 2 nic's - one to the network, the other setup as a PPP connection to the internet.

Windows network that talks to the linux box for internet, email etc...

Now, i can access the internet via the linux box without any worries but it wont allow any communication through to the windows machines.

Is there any internet sharing tools or routes that i need to setup to allow the windows computers to access the world?

Thanks in advance!
Old 01-17-2005, 01:58 AM   #2
Registered: Aug 2004
Location: .au
Distribution: debian, BSD
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you'll need to setup a NAT rule on the PPP interface on your linux box if you want to give your windows machine full outbound connectivity. If you just want HTTP/HTTPS/FTP access though, install a proxy server (like squid for example) on your linux box and add the proxy stuff to the web browser on your windows machine. so you can use it.

not sure what kernel enterprise 3.0 comes with, if it's 2.4.x or above, you can use iptables to write your NAT rules. If it's earlier you can do it with ipfw/ipchains - there are some good tutorials on the web - google is your friend.
Old 01-17-2005, 02:07 AM   #3
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I managed to sus is out. I found some tutes on iptables and got it working. Thanks for the help anyway
Old 02-03-2005, 07:07 PM   #4
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Location: New York
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Hey, i have MDK10.0 Of,
I have kernel 2.6.3.

I am having a similar problem. But with cablemodem. Using eth0 as my internet source.. and eth1 for connection to my local network.
I am using my linux box as a router, or tring to. Kinda hard to route nothing.

Well i am kinda lieing. Seems like i sometimes have internet access. while tinkering i have gotten so that windows can ping web address's, and the rest of the local net. But i cant surf or browse or anything.
I have been to a few IRC chat... and got pretty far.. but still no access. i have installed and uninstall ipkungfu. No matter how hard i try i cant get rid of shorewall.
Lets see what else. Right now im referring off my modem for a DNS- or i should say my ISP. Im not to comfortable with that, but hey.. whatever makes it work.



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