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



c_ryan
7th May 2006, 12:49 PM
Hi!
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?

swint144
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.

gilboa
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