It simply means the sender supports selective acknowledgements.
From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx]
On Behalf Of Derrenbacker, L. Jonathan
Sent: Monday, July 16, 2012 4:31 PM
To: 'wireshark-users@xxxxxxxxxxxxx'
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.
Thanks,
Jon
The information contained in this e-mail and any accompanying documents is intended for the sole use of the recipient to whom it is addressed, and may contain information that is privileged, confidential, and prohibited
from disclosure under applicable law. If you are not the intended recipient, or authorized to receive this on behalf of the recipient, you are hereby notified that any review, use, disclosure, copying, or distribution is prohibited. If you are not the intended
recipient(s), please contact the sender by e-mail and destroy all copies of the original message. Thank you.
|