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Here's my problem. I'm trying to setup dual boot machine (win XP + Linux).
First I did Redhat 8.0 install and then I also tried Suse 8.0. Both went OK as far as I can tell, each time my network card was recognized without a problem (Realtek 8139) but my internet connection is not working. All this time, when I boot to Windows, everyhing works fine.
Also, when I do ifconfig , everything seems to be in order there - IP, gateway, namesearch values are the ones I've put in during installation, driver seems to be loaded fine...
Also, on my old PC Linux (Redhat 7.3 then) was working without any problem on same cable modem, so I think modem itself is not a problem.
And I just remembered this... when i bought this new PC, the network also wasn't working in Windows after the installation, because the network card was set-up on 100Mb full duplex. Once I changed this to 10Mb full duplex all went well.
Is it possible that this might be the case? But I got no idea how to check this in Linux or to change it.
I also have a realtek 8139 and it figures out istself if 100 or 10mb speed is possible. So i don't thing you have to worry about that.
Have you checked if your card is up, you can check this by typing ifconfig as root. It will show you the networdk devivices. You should see localhost and eth0. If it isn't up give ifconfig eth0 up.
You obviously need to enter the correct domain name in and not have the <>'s in there and xxx.xxx.xxx.xxx is the primary DNS IP while yyy.yyy.yyy.yyy is the secondary DNS IP. If this doesn't work out, try running as root in a terminal, redhat-config-network. Hope this helps.
Problem was after all in the fact, that I can only access network if NIC is setup on 10Mb full duplex, which mine was not. Default setting on my card was auto negotiating I belive. After i used rtl8139-diag utility and forced NIC to 10baseT media type (10Mb full duplex speed) I am finally able to write this from Linux