> rfc 742 p. 42 says > > [...] If the the user signals a push function then the > data must be sent even if it is a small segment. > > by "illegal" i mean goes contrary to an rfc "must." perhaps > i'm missing something.
i don't see how what was sent is contrary to that requirement. >sensible as setting PSH on a pure ACK. i don't understand this reference to a `pure' ACK. it's an ACK! in TCP/IP every packet after SYN must have an ACK (or that really is -- explicitly -- illegal). the ACK and PSH have nothing to do with each other. in fact, the receiver isn't handling the PSH oddly because it's associated with an ACK, but because it misinterpreted the standard, or the standard isn't clear.
