http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1367
Summary: Invalid checksums with TCP offloading hardware.
Product: Wireshark
Version: 0.99.4
Platform: PC
OS/Version: Windows NT
Status: NEW
Severity: Minor
Priority: Medium
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: john@xxxxxxxxxxxx
Build Information:
Version 0.99.4 (SVN Rev 19757)
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If a network interface uses TCP checksum offload the TCP dissector will flag
every outgoing packet as invalid. I think this is stupid, because outgoing
could be considered to not have checksums errors.
The TCP dissector should provide a feature for not computing the checksum of
segments which origins from the localhost.
I have a lot of packet captures were basically every other packet is considered
having a invalid checksum, and I don’t want to disable the check completely
since then any incoming packet which actually has an invalid checksum is
considered valid, which it's definitely not.
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