Wireshark-bugs: [Wireshark-bugs] [Bug 7759] When NIC calculates IPv4 header checksum, the packet
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Wed, 26 Sep 2012 23:08:57 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7759

--- Comment #3 from Bigfoot <meckschlager@xxxxxxxxxxxx> 2012-09-26 23:08:56 PDT ---
Comment on attachment 9233
  --> https://bugs.wireshark.org/bugzilla/attachment.cgi?id=9233
patch for epan/dissectors/packet-ip.c

Consider this: A user cannot disable offloading because the driver doesn't
support turning it off. (Also, if you turn it off you end up having your
network stack having to do the calc for all your trafic, not only wiresharks). 
So given that you dont/cant do above the only thing you can do is, as you
suggest, turn checksum checks off completely, so you miss bad headers (not
quite likely that there will be wrong checksums, but anyway). 
These two choices are not 100% satisfying, are they?

Best regards

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