Daniel Underwood wrote:
Thanks for the help.

I couldn't find any flags/fields in TCP packets indicated whether
encrypted (as in the case of SSH packets).  There isn't any, right?

Correct: there isn't anything like that in the TCP headers.  Encryption
on TCP streams is an application level thing that only affects packet

There are transport layer encryption protocols -- eg. IPSec, OpenVPN, etc.
-- but those allow tunnelling TCP streams through them and aren't necessarily
TCP themselves.



Dr Matthew J Seaman MA, D.Phil.                   7 Priory Courtyard
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