Hi, I just installed KnoppMyth, and I cannot get my computer to obtain an IP address from my router. When I install KnoppMyth fresh, the DHCP broadcast fails.
When I reboot then try the 'pump' command on eth0 in a terminal window as root, this fails. I cannot, of course, ping anything but localhost, and I cannot access the internet.

I can use 'ifconfig eth0 up' to then see the MAC address of the ethernet adapter.

My router is a Linksys WRT54GS, v.6, latest Linksys-supplied firmware. I had this same computer with the same motherboard out of the same port on the same router working just fine with Debian last week; it would get an IP from my router with no problem. There are other computers (wired and wireless) connected to my network, without issues.

Also, when I plug the ethernet cable straight from my cable modem into the ethernet port, it obtains an IP from the modem/my ISP no problem either.

This leads me to believe there is something wrong with the way that KnoppMyth solicits IP addresses from the DHCP server in my router. But, I cannot figure it out. Does anyone have any solutions?

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P4 3.2 Ghz processor
onboard ethernet adapter
Knoppmyth R5E50

Can you pull up log files from the router via the web interface that might indicate anything?

What happens if you try booting off of the KnoppMyth CD and try running a CD boot (I forget the name in the menu) or some other Live Distro that will get you in far enough to see if there is an IP being assigned.

Same Cat5 cable you were using last week? Maybe try a diff cable if you have one.

Those are the few things off the top of my head that I'd check....

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Currently Running:
Too lazy to update this with my current hardware, I'll redo it during my next install =)

Can you list out your /etc/network/interfaces file for us?

Also, it wasn't entirely clear, but you verified the cable between the router and the new machine, right? It gives you a connection if you try that cable on another box?

Thank you for the responses.
The cable that I was using to try connect to my KnoppMyth computer is the same one I am now using to connect to mysettopbox.tv (I switched it out to another PC), so no problems there.

To recap:
Modem -> Router -> KnoppMyth box: FAIL to obtain an IP
Modem -> KnoppMyth box: SUCCESS in obtaining IP and connecting to the internet.
Modem -> Router -> All other PCs: SUCCESS
Modem -> Router -> (KnoppMyth box previously running Debian): SUCCESS

The log on my router kind of sucks - it just tells what IPs come in to the router, and what IPs are accessed from what computers. So no indication that it's even seeing my KnoppMyth computer at all.

My etc/network/interfaces file is as follows.


That's all. No eth0.
So far, no success running a CD boot from the KnoppMyth CD.

Thanks for your suggestions, I'll keep trying, and please tell me if you can think of anything else.

What motherboard are you using and what is the output fromDoesn't sound like KM has identified your NIC...

The motherboard is a microATX harvested from an HP pc5000 computer.
Output from lspci | grep -i ethernet is:

So it appears to know it's there. Maybe I'll try reinstalling again.

Thanks for your help. I'm writing down all these commands that I never knew.

That's pretty odd. There should be the other line in there.

iface eth0 inet dhcp

Can you try adding the line manually and see if it works? It almost seems like it's not detecting the network card at all.

You said you plugged the cable modem directly into the ethernet port on that box and it received an IP address? Just trying to be clear.

If that's so, then you've eliminated the hardware as being the problem entirely. The cable is good and the network card is working on that machine.

Bizarre

Have you tried running netcardconfig ?

Well, I don't know what it what the problem was exactly, but I decided to go with a Zonet ZEW2501 USB Network adapter to connect wirelessly. It was kind of a pain to set up, having to figure out exactly how KnoppMyth likes the /etc/network/interfaces file syntax, but finally it connects to my wireless network on bootup, which is fine for me right now.

Thanks for all your help, I really appreciate it.