Wireshark-bugs: [Wireshark-bugs] [Bug 8629] bad tcp checksum not detected

Date: Sun, 05 May 2013 17:11:03 +0000

changed bug 8629

What Removed Added
CC   [email protected]

Comment # 1 on bug 8629 from
The current behavior is done on purpose (see revision 17196 for details).
Wireshark displays the checksum as:
    Checksum: 0x0000 [Checksum Offloaded]
        [Good Checksum: False]
        [Bad Checksum: False]
As you can see it is neither considered as good or bad checksum, but rather an
assumption that checksum offload is used and that no check is doable.

Maybe we could add an option allowing the user to explicitly disable checksum
offloading detection attempt so as to consider this checksum as an error. Not
sure whether it's really worth the work or not. I will let TCP experts decide
whether we should close this "bug" or not :)


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