OSPF AUTHENTICATION CODES The Open Shortest Path First (OSPF) protocols has a provision for authentication, and the type of authentication can me indicated by a code number. The following are the registered authentication codes. Code Authentication Method Reference ---- --------------------- --------- 0 No Authentication [RFC1583] 1 Simple Password Authentication [RFC1583] 2 Cryptographic authentication [RFC2328] 3-65535 Reserved REFERENCES [RFC1583] Moy, J., "OSPF Version 2", RFC 1583, Proteon, Inc., March 1994. [RFC1584] Moy, J., "Multicast Extensions to OSPF", RFC 1584, Proteon, Inc., March 1994. [RFC1585] Moy, J., "MOSPF: Analysis and Experience", RFC 1585, Proteon, Inc., March 1994. [RFC1586] deSouza, O., and M. Rodrigues, "Guidelines for Running OSPF Over Frame Relay Networks", RFC 1586, AT&T Bell Laboratories, March 1994. [RFC1587] Coltun, R., and V. Fuller, "The OSPF NSSA Option", RFC 1587, RainbowBridge Communications, BARRNet, March 1994. [RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328, Ascend, April 1998. []