https://app.kbone.net/vault/rfc/docid/3510
RFC3142: An IPv6-to-IPv4 Transport Relay Translator
Network Working Group J. Hagino Request for Comments: 3142 K. Yamamoto Category: Informational IIJ Research Laboratory June 2001 ...
https://app.kbone.net/vault/rfc/docid/5580
RFC5117: RTP Topologies
Network Working Group M. Westerlund Request for Comments: 5117 Ericsson Category: Informational S. Wenger Nokia ...