Jan Engelhardt schrieb: > 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 Yes, half-open connections. The other purpose is to recover from duplicate SYNs, where SYN2 arrives before SYN1, which could confuse TCPs. See figure 9 in RFC793, p. 32ff for a discussion of RST generation and processing. Have a nice time, Joerg
