Hello Rick, all,

RE: TCP keep-alive packets port number (long)

Rick Jones sez:
----------------------------------------------------------------------
Does telnet really have "headers?" It has some escape sequences, but
in a run of the mill telnet session, there would be _lots_ of packets
with just data and nothing resembling a "telnet header."
----------------------------------------------------------------------

You are right, telnet does not have headers... it does a bunch of
negotiation up front.  I guess I got caught over-thinking this one...
I would expect the zero (0) data might be most concerning/confusing to
the firewall.  As per RFC it the remote end must be able to respond to
old segments (-100), so I would hope that the firewall is not tripping
on that one.

regards,
 James Hofmeister




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