http://www.rfc-editor.org/rfc/rfc6071.txt
RFC 6071: IP Security (IPsec) and Internet Key Exchange (IKE) Document Roadmap, S. Frankel, S. Krishnan2011-02-01T23:00:00-00:00The obsoleted IPsec roadmap (RFC 2411) briefly described the interrelationship of the various classes of base IPsec documents. The major focus of RFC 2411 was to specify the recommended contents of documents specifying additional encryption and authentication algorithms. This document is not an Internet Standards Track specification; it is published for informational purposes.