It is an D945GCLF2 with a 330. > use the r8169 driver That driver has issues with the counters, resolved with the ElRepo and Realtek drivers. Ifconfig shows no dropped packets with the latter two drivers. > website, it has been working fine, and I regularly check my tcpdump, > dmesg even states that it enter promiscuous mode and exits > device > eth0 entered promiscuous mode > device eth0 left promiscuous mode only The dmesg statement comes from a printk statement in the driver. I modified the driver to force the register to always load rx=AllowMe|AllowAll|AllowBroadcast|AllowMulticast. I surrounded it with printk statements so I know that it is entering and exiting the rx setting. It acts like this variable is never being written to the chip register. Hmmm, I think I need to look at their code some more to make sure they ARE writing to the register. Despite the kernel messages, the chip does not enter the promiscuous mode. If you have a second box talking to a third address, do you see that TCP traffic in TCPDump. Another way to check it is using iptraf. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20090608/25cd9c37/attachment-0005.html>