Documents related to 'dual stack'
2005, RFC3974: SMTP Operational Experience in Mixed IPv4/v6 Environments
2010, RFC5844: IPv4 Support for Proxy Mobile IPv6
2015, RFC7445: Analysis of Failure Cases in IPv6 Roaming Scenarios
2016, RFC7756: Stateless IP/ICMP Translation for IPv6 Internet Data Center Environments (SIIT-DC): Dual Translation Mode
2016, RFC7757: Explicit Address Mappings for Stateless IP/ICMP Translation