[CentOS] Intel D425KT Motherboard / Realtek RTL8105E

Fri Aug 17 16:58:34 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
> instead?

Or the other option could be to use a USB to RJ45 adaptor 
instead of the onboard NIC?




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