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Old 10-18-2005, 03:59 AM   #1
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Registered: Oct 2005
Location: Mumbai
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Question eth0 fails

I have installed Red Hat Linux 7
i want to connect this computer to another computer having fedora to connect to internet.
i went in network configuration but eth0 fails everytime

i tried ifup etho but it says delaying eth0 i tried etc/init.d network restart but it says eth0 fails

i pinged with thn everything is ok

tell me how to activate interface eth0
Is anything wrong with my network card ? :-(
Old 10-18-2005, 04:59 AM   #2
Registered: Mar 2005
Location: Dresden, Germany
Distribution: OpenSuse 11.2/3, Debian 5.0 , Debian 1.3.1, OpenBSD
Posts: 277

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Call a console (once a console, always a console!)
Check the following:
>ifconfig (should show that eth0 is up, has an IP and a netmask.)
if it is down, type

>ifconfig eth <your desired and UNIQUE IP> up
Next check this

>route (it should show you two thins: The default loopback route and the route to your network. My guess is that there is no route to your network.)
If there is only a loopback address add the route to your network by typing

>route add -net <the target network IP including subnetmask ( for all hosts>
This should add the route to your network.

By the way, check the kernel messeges for a detailed explanations why eth0 fails and what that means exactly (not detected on bus? not responding? network unreachable? host unreachable? eth0 not fed last evening? ethernet cards on strike? Does the union of eth0 labour know about this? eth0 on holidays - will come back later? You know, what does "fail" mean...)
Old 10-18-2005, 05:05 AM   #3
Registered: May 2004
Location: Cornwall, UK
Distribution: Ubuntu 8.04
Posts: 464

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Or possibly RH7 doesn't have support for your network card (old 2.4 kernel, etc, etc ....)

Specifing make and model of your network card might help as well.
Old 10-18-2005, 07:19 AM   #4
Senior Member
Registered: Jan 2005
Distribution: Slackware, BackTrack, Windows XP
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do one thing.
unplug yr NIC from yr system. Then start and shutdown yr system once to remove older network configs
plug in yr NIC again. Now while trying to configure it using "netconfig" it should prompt with the make/modules.....note down that modules. You may need to load that module.

Lets see first whether u reach upto this or not.......then we will see rest ( as i have to leave now )

Old 10-18-2005, 07:46 AM   #5
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Location: Mumbai
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Smile Thank you

Thank you Guys for all ur help and support

Im sure if i have so many linux tech people i can easily be linux expertise..

thanks again
Old 10-19-2005, 04:54 AM   #6
Registered: Mar 2005
Location: Dresden, Germany
Distribution: OpenSuse 11.2/3, Debian 5.0 , Debian 1.3.1, OpenBSD
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ruudra, just an idea:
If the kernel lacked the module, the ethernet card would have no instance in the kernels device tables, thus there would be no eth0 to fail!

You have a point though, there might be the wrong driver behind this problem. shueib, a model number of your ethernet card, model etc... Then, given that everything else we proposed failed, post the outpu of a "lsmod" command along with the model identifiers of your ethernet card.
Old 10-19-2005, 01:36 PM   #7
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Registered: May 2003
Location: INDIA
Distribution: Ubuntu, Solaris,CentOS
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post the O/P of


this will be helpfull to track down ur network card module



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