%% You should probably cite draft-briscoe-tcpm-inner-space instead of this I-D. @techreport{briscoe-tcpm-syn-op-sis-02, number = {draft-briscoe-tcpm-syn-op-sis-02}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-briscoe-tcpm-syn-op-sis/02/}, author = {Bob Briscoe}, title = {{Extended TCP Option Space in the Payload of an Alternative SYN}}, pagetotal = 24, year = 2014, month = sep, day = 22, abstract = {This document describes an experimental method to extend the option space for connection parameters within the initial TCP SYN segment at the start of a TCP connection. In this method the TCP client sends two alternative SYNs: one intended for legacy servers and one intended for upgraded servers. Once it establishes which type of server has responded, it continues the connection appropriate to that server type and aborts the other. The SYN intended for upgraded servers includes additional options at the end of the payload. It is designed to traverse all known middleboxes. In the longer term, clients will be able to send only the SYN intended for upgraded servers.}, }