> |Sometimes, if either hosts need to tear down the connection quickly > (timeout, > |port or host unreachable, etc.), a RST (Reset) packet is sent. Note that > |since a RST packet is not necessarily always part of a TCP connection, it > can be > |sent by itself. RST packets that are part of a TCP connection is usually > |accompanied by the ACK flag as well. > > What would be the use of RST if it is not part of a connection? > Is it...vv? > A and B are connected > A crashes > B tries to send > A sends RST,!ACK Your scenario seems clear to me.. ;-) If A crashes, to A there is no connection anymore. If B sends data to A and A thinks no SYN/ACK has occurred for that connection, IMHO A should send RST without ACK because according to A there _is_ no connection to send ACK for. Anyway, I didn't test it but it would make sense to me. Gr, Rob
