Wireshark-dev: Re: [Wireshark-dev] Wireshark User's Guide error

From: Uli Heilmeier <zeugs@xxxxxxxxxxxx>
Date: Thu, 3 Feb 2022 21:39:34 +0100
Thanks Morten for reporting this.

Fixed in !6114

Am 02.02.22 um 17:23 schrieb Morten Brørup:
Dear Richard Sharpe, Ed Warnicke, Ulf Lamping,

Chapter 7.5 in the Wireshark User's Guide error (https://www.wireshark.org/docs/wsug_html_chunked/ChAdvTCPAnalysis.html <https://www.wireshark.org/docs/wsug_html_chunked/ChAdvTCPAnalysis.html>) says:

TCP Keep-Alive

Set when the segment size is zero or one, the current sequence number is one byte less than the next expected sequence number, and any of SYN, FIN, or RST are set.

It should say:

TCP Keep-Alive

Set when the segment size is zero or one, the current sequence number is one byte less than the next expected sequence number, and none of SYN, FIN, or RST are set.

Please refer to the TCP packet dissector source code for confirmation:

https://github.com/boundary/wireshark/blob/master/epan/dissectors/packet-tcp.c#L950 <https://github.com/boundary/wireshark/blob/master/epan/dissectors/packet-tcp.c#L950>

Med venlig hilsen / kind regards

*Morten Brørup*

CTO

*SmartShare Systems A/S*

Tonsbakken 16-18

DK-2740 Skovlunde

Denmark

Office      +45 70 20 00 93

Direct      +45 89 93 50 22

Mobile     +45 25 40 82 12

mb@xxxxxxxxxxxxxxxxxxxxx <mailto:mb@xxxxxxxxxxxxxxxxxxxxx>

www.smartsharesystems.com <https://www.smartsharesystems.com/>


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