Re: Bad UDP checksum with 82540EM

"cramerj" [off-list ref] writes:

Just for clarification...how are you determining a bad checksum?  Are
you using tcpdump/ethereal on those test machines (that you're
transmitting from), or are you capturing packets on the wire (from some
other system receiving the packets).

Actually both.  I have first noticed the issue because my DHCP clients
didn't accept the answers from the server.

If the former, then please see the following thread.

http://marc.theaimsgroup.com/?t=107422099800006&r=1&w=2

Is this perhaps the issue you're seeing?

I just double checked, the packets are really going out with a bad
checksum.

Andreas.

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Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
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