View Full Version : Checksum errors - Ethereal with nVidia on-board ethernet

7th May 2006, 12:49 PM
I've been using Ethereal and it's showing that lots of the packets I am sending have incorrect TCP checksums. I'm using an nForce3-250 chipset (Asus K8N-E Deluxe) running FC5_x86-64. Is this something to do with checksum offloading? Should I be worried about it?

11th October 2007, 02:31 AM
Have you gotten any answers to this issue? I have the same problem, and I think that it's what is preventing me from sending mail.

16th October 2007, 02:48 AM
I'm not sure why but the forcedeth driver's TCP off-loading implementation seems to be severely broken.
You may want to try and disable it using:
$ ethtool -K ethX tso off