BILLW@MATHOM.CISCO.COM (William "Chops" Westfield) (12/01/90)
TCP options are apparently not included in the sequence space - At least, all the implementations I see have the first datagram after the syn/mss packet with a sequence number 1 greater than the syn (which covers the syn, but not the 4 bytes of tcp options that make up the mss option.) HR rfc requires that TCPs accept options in any packet - does this actually mean that in order to ensure reliable delivery of an option, it has to be sent in a packet that also contains data? Sure seems that way... BillW -------