Network Working Group M. St. Johns Request for Comments: 1038 IETF January 1988 Draft Revised IP Security Option Status of this Memo This RFC is a pre-publication draft of the revised Internet Protocol Security Option. This draft reflects the version as approved by the Protocol Standards Steering Group. It is provided for informational purposes only. The final version of this document will be available from Navy Publications and should not differ from this document in any major fashion. This document will be published as a change to the MIL-STD 1777, "Internet Protocol". Distribution of this memo is unlimited. 9.3.13.1 Internet Options Defined. The following internet options are defined: CLASS NUMBER LENGTH DESCRIPTION _____ ______ ______ ___________ 0 00000 - End of Option list: This option occupies only 1 octet; it has no length octet. 0 00001 - No Operation: This option occupies only 1 octet; it has no length octet. 0 00010 var. Basic Security: Used to carry security level and accrediting authority flags. 0 00011 var. Loose Source Routing: Used to route the datagram based on information supplied by the source. 0 00101 var. Extended Security: Used to carry additional security information as required by registered authorities. 0 01001 var. Strict Source Routing: Used to route the datagram based on information supplied by the source. 0 00111 var. Record Route: Used to trace the route a datagram takes. 0 01000 4 Stream ID: Used to carry the stream identifier. 2 00100 var. Internet Timestamp: Used to accumulate timing information in transit. St. Johns