Re: 1.3.63 & no SYN ?

Alan Cox (alan@cymru.net)
Thu, 15 Feb 1996 12:03:12 +0000 (GMT)

> ignore my ignorace, I don't know the correct name:
>
> when a tcp/ip stack receives a connection request, which is not assigned
> (no server listening on it), it sends a SYN (correct??) so that the other
> host will get a "connection refused".

The sequence should go:

Working Rejecting
SYN SYN
SYN|ACK RST
ACK
...

> as of at least 1.3.63, this mechanism seems not to be working anymore,
> e.g. "telnet localhost 4444" (4444=not bound) ends with a timeout.
> note that this also happens with non-local (not loopback) connections.

Non local incoming or outgoing ?

Alan