http://www.rfc-editor.org/rfc/rfc1722.txt
RFC 1722: RIP Version 2 Protocol Applicability Statement, G. Malkin1994-11-01T23:00:00-00:00As required by Routing Protocol Criteria (RFC 1264), this report defines the applicability of the RIP-2 protocol within the Internet. This report is a prerequisite to advancing RIP-2 on the standards track. [STANDARDS-TRACK]