[CentOS] Intel D425KT Motherboard / Realtek RTL8105E

Fri Aug 17 16:46:04 UTC 2012
Keith Roberts <keith at karsites.net>

On Fri, 17 Aug 2012, Tim Nelson wrote:

> To: CentOS mailing list <centos at centos.org>
> From: Tim Nelson <tnelson at rockbochs.com>
> Subject: [CentOS] Intel D425KT Motherboard / Realtek RTL8105E
> Greetings-
> I'm attempting to get CentOS 5.5 x86 (yes, very specific version required for specific software usage scenario... don't ask) running on an Intel D425KT mini-ITX motherboard. Everything works fine, with the exception of the onboard ethernet, which is a Realtek RTL8105E chip. The stock CentOS installation attempts to use the r8169 driver, which does not work. I've been around the block a few times dealing with Realtek interfaces and their driver hell, but this one is stumping me.
> Things tried so far:
> -Adding pci=assign-busses to the kernel parameters
> -Installing kmod-r8101 from elrepo, old and new versions
> -Compiling driver from scratch direct from Realtek
> In every test, I end up with what *appears* to be a functioning ethernet interface (r8101 driver detects chip as RTL8105E correctly), or as reported by the software (ifconfig, ethtool, etc). But, I just cannot get any traffic to pass. There is a link light for the ethernet interface, but no actual activity when testing.
> Any thoughts?

Hi Tim.

If this NIC is built onto the motherboard, would it not be 
easier just to find an (PCI?) expansion slot NIC that is 
known to work out of the box on Centos 5.5 and use that 




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