http://www.rfc-editor.org/rfc/rfc7445.txt
RFC 7445: Analysis of Failure Cases in IPv6 Roaming Scenarios, G. Chen, H. Deng, D. Michaud, J. Korhonen, M. Boucadair2015-03-01T23:00:00-00:00This document identifies a set of failure cases that may be encountered by IPv6-enabled mobile customers in roaming scenarios. The analysis reveals that the failure causes include improper configurations, incomplete functionality support in equipment, and inconsistent IPv6 deployment strategies between the home and the visited networks.