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Wireshark-users: [Wireshark-users] SACK_PERM=1

From: "Derrenbacker, L. Jonathan" <jderrenbacker@xxxxxxxxxxxxx>

Date: Mon, 16 Jul 2012 20:30:33 +0000

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.

Thanks,

Jon

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