http://www.rfc-editor.org/rfc/rfc6059.txt
RFC 6059: Simple Procedures for Detecting Network Attachment in IPv6, S. Krishnan, G. Daley2010-11-01T23:00:00-00:00Detecting Network Attachment allows hosts to assess if its existing addressing or routing configuration is valid for a newly connected network. This document provides simple procedures for Detecting Network Attachment in IPv6 hosts, and procedures for routers to support such services. [STANDARDS-TRACK]