I have a redhat 8 box that I am trying to set up IP Masq on. It has an onboard Reaktek net interface, and today I installed a D-link DFE-530TX+ NIC. After I put it in, kudzu configured it, and kudzu blitzed all my settings for the onboard interface. So I set it back up, and got internet only by activating both NICs with the same IP settings. Now, in Neat, when I bring down the internal interface, supposedly eth0 & identified as the Realtek interface, it kills my outbound connection, but when I bring down eth1, it kills my internal connection. I know I have all the cables hooked up properly, I triple-checked them. I just want my cards ID'd properly!

Many thanks,
Ian

Nevermind, found out that my Dlink and my onboard are the same chipset, therefore the same name in neat.

Ian

D-Link uses RealTek 8139 driver. Just make sure not to mistake them two! I had the problem with my router and I did not know which card was connected to the DSL modem and which to the LAN switch! Physically I knew, but did not know which was eth0 and which was eth1 to Linux.

Ha ha, same here, i lost which was which...

I hope you did solve the puzzle... (usually on-board cards are eth0)

Edit: Remember that you need the two cards with different IP's, although one uses your ppp0 interface, you need it to have it's own IP to reffer the rest of the computers on the LAN to it as your GateWay.

Of course, I fired up neat and disabled one, if i lost internet, then i knew which it was. My onboard is actually eth1. I don't need PPPoE here, if thats what you mean with the ppp0 reference. I didn't have to actually redo my network, i just wanted a static IP. My ISP uses NAT, so DyDNS wouldn't work for me, either. On top of that, the DSL modem/router is their property, so I couldn't change routing settings if I wanted to.

Ian

What I meant is that you can have the modem connected to one NIC and of course your LAN to the other, but since your ISP uses NAT I suppose it uses the NAT on the modem, right? so you would have to reset it to free the NAT address? Anyway, Linux has to know how to communicate with your NIC attached to the modem, wich would be your gateway to your modem instead of your LAN NIC which would serve as a bridge between the LAN and the NIC with the modem, thus your gateway. This is why both NICs have to have two IP addresses (static if you like). If your ISP uses static IP's use that for your NIC connected to the modem, then use another arbitrary IP for your LAN, remember that your computer can act as a bridge between the two networks, so you would not have to have a similar IP scheme for your LAN that that supplied by your ISP.

Your ISP has a network which your computer becomes member of by installing the modem and connecting to the ISP, so the other NIC has your private and static IP for your LAN, BUT you will need to redirect the computers on your LAN to the NIC actually connected to the modem through your LAN connected NIC.(the bridge). I hope this is how it works My ISP uses (as you well said) PPPoE to connect my DSL.

Yeah, I had a general idea of how it works. I set up my net 2 days ago using various howtos from tldp. If you're interested, this is how my ISP recommends doing it.

http://support.gulftel.net/ics/

Thanks
Ian