sharing insternet connection

OneNut · n00b Joined: 28 Sep 2003 Posts: 4 Location: Gatineau

well, i finaly managed to install gentoo, it took me a while but i got it, it sure was fun to install it, so much fun that i think i will try to re-install it... ummm, maybe not

ok, i have 2 ethernet cards in my pc, d-link and macronix, and i would like to share my connection with a second pc i have, i'm just not sure how to go about that, i think it's something i probably have to edit in /etc/conf.d/net but i'm not sure how to configure it for 2 ethernet cards
please help
thanks everyone

Lozzer · Posted: Sun Sep 28, 2003 9:23 pm Post subject: Tips

You need to do a number of things. I'm going to assume eth0 is connected to the Internet, and eth1 is connected to your internal network. I'll also asume a that the second PC has a static configuration, you can look up dhcp if you want it to get its details automatically. You need an ip subnet for your internal network. 192.168.0.* is a good choice, as this range of addresses is reserved for private networks. For clarity, lets say that eth0 has an address of 1.2.3.4. The required configuration is
PC1: /etc/conf.d/net

OneNut · n00b Joined: 28 Sep 2003 Posts: 4 Location: Gatineau

thanks for responding Lozzer
i tryed what you just sayed, and it didn't work for me
i am running gentoo with 2 nic cards and my second pc is running mandrake 9.1
my first ethernet card is for the internet connection and i have it pluged directly into my cable modem, and my second ethernet card is pluged into a hub,and the second pc is also linked to the hub, not sure what i'm doing wrong, would you be able to post a full example from your /etc/conf.d/net , i think i may have totaly messed that up
thanks again
:oops:

FormerSlacker · Posted: Mon Sep 29, 2003 4:46 am Post subject:

In addition to setting up the ethernet cards, you'll need to set up your server for NAT.

Check out the Linux IP Masquerade HOWTO as it has all the information you'll need, and then some.

If you really want to skip ahead to the important stuff, and assuming you are using a 2.4 based kernel, read this for configuring the kernel and this to setup the forwarding rules. Thats the meat and potates of it.

After you have iptables going, you'll probably want to configure the clients and forward some ports as well.

Lozzer · Posted: Mon Sep 29, 2003 8:28 am Post subject: Apologies

Apologies for that oversight. Maybe that will teach me to post late at night.