[NTLUG:Discuss] Fedora core 4 can not detect IP

[Leroy Tennison]

m m wrote:
> All:
>
> can any one give me a quick answer?
> (because I don't know what detail information to provide)
>
> the problem is:
>
> My old RH 6.0 box can automatically detect my comcast IP.
> and the new Fedora Code 4 can not detect my comcast IP.
>
> on the network configuration,
> I have set it as dhcp, and reboot the box.
> it just give " can not get ip information... Failed"
> while booting.
> All hardware are good.
> All cable connection is correctly connected.
>
> What¡¦s wrong on it?
>
> Thanks.
>
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It may not be a quick answer but here are some ideas:

Do 'dmesg | less' and look for your card, you may find an error message 
here.

Does ifconfig show the card (even without an IP address)?

Run mii-tool and ethtool against your ethernet card and see what you 
get. mii-tool should give you the link status and 'ethtool -i ...' 
should give you driver information. If your NIC is PCI then lspci may 
give some useful information. These may surface card problems or drivers 
not loaded. Using insmod or modprobe to load the driver (if it isn't 
already) may reveal driver issues.

Another thing to try is manually setting the IP address on the card to 
something you know is valid for the network
and see if ping works.

If the card is ISA you will need port and/or interrupt plus driver 
information in /etc/modules.conf

How many NICs do you have in this host? I just went through an OS 
re-install and the cards were switched in the process (what was eth0 
became eth1 and vice versa). I had saved my configuration for eth0 and 
eth1 and tried to restore them which was my problem.

Hope one of the ideas helps.