Extensible Authentication Protocol

Abstract: This document describes version 2 of the Internet Key Exchange (IKE) protocol. IKE is a component of IPsec used for performing mutual authentication and establishing and maintaining security associations (SAs). This version of the IKE specification combines the contents of what were previously separate documents, including Internet Security Association and Key Management Protocol (ISAKMP, RFC 2408), IKE (RFC 2409), the Internet Domain of Interpretation (DOI, RFC 2407), Network Address Translation (NAT) Traversal, Legacy authentication, and remote address acquisition. Version 2 of IKE does not interoperate with version 1, but it has enough of the header format in common that both versions can unambiguously run over the same UDP port. [STANDARDS- TRACK]

Abstract: This document revises the specifications in RFC 733, in order to serve the needs of the larger and more complex ARPA Internet Some of RFC 733's features failed to gain adequate acceptance In order to simplify the standard and the software that follows it, these features have been removed A different addressing scheme is used, to handle the case of internetwork mail; and the concept of re-transmission has been introduced Obsoletes RFC 733, NIC 41952

Abstract: The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. PPP also defines an extensible Link Control Protocol (LCP), which can be used to negotiate authentication methods, as well as an Encryption Control Protocol (ECP), used to negotiate data encryption over PPP links, and a Compression Control Protocol (CCP), used to negotiate compression methods. The Extensible Authentication Protocol (EAP) is a PPP extension that provides support for additional authentication methods within PPP.

Abstract: This document describes version 2 of the Internet Key Exchange (IKE) protocol. IKE is a component of IPsec used for performing mutual authentication and establishing and maintaining Security Associations (SAs). This document replaces and updates RFC 4306, and includes all of the clarifications from RFC 4718. [STANDARDS-TRACK]