Ethernet card not recognised
 

i use rhel5.2.earlier it recognised my ethernet device eth0 but now when i use commands like ifup eth0 it shows a message that eth0 seems to be not present,delaying initialisation.my laptop is lenovo 3000n200 0769.
please help me.

Can you give the output of the lspci and dmesg |grep eth0 commands.

the outputs are
 

lspci shows 06:00:0 Ethernet controller:Broadcom Corporation Unknown Device 113(rev 02)
the other command gave nothing as output.i used | insteadof \ because \ gave error message.i would like to tell u that i use both vista and rhel5.2.firtsly i couldn't use lan in vista but could do so in rhel.somehow i managed to solve the problem in vista.meanwhile i also reinstalled rhel5.2.then onwards,the device is not being rcognised

try the following command. .

update-pciids

If that completes successfully then post the NEW output of lspci for the network card

If that does NOT complete successfully (I'm not sure if that is the proper command for Redhat, it works in Debian) then you need to Manually download the pciids database and put it in the /usr/share/misc folder

cd /usr/share/misc
wget http://pciids.sourceforge.net/v2.2/pci.ids
lspci

Then maybe we can see what Broadcom NIC you actually have..

i tried the crudest way.i reinstalled rhel5.2 and now my eth0 works.thanx everyone for the help.
can anyone help me configuring broadband in rhel5.2.i runned the dsl setup successfully but when i check its status it shows ppp0 down,no link