Wireshark-users: Re: [Wireshark-users] SACK_PERM=1
From: Forthofer Russ <[email protected]>
Date: Mon, 16 Jul 2012 17:57:43 -0400

It simply means the sender supports selective acknowledgements.


From: [email protected] [mailto:[email protected]] On Behalf Of Derrenbacker, L. Jonathan
Sent: Monday, July 16, 2012 4:31 PM
To: '[email protected]'
Subject: [Wireshark-users] SACK_PERM=1


I’m doing a packet capture of a web app not authenticating correctly and I see some TCP packets with the “SACK_PERM=1” option set.

Can anyone explain what that option does.








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