ISATAP

ISATAP (intra-site automatic tunnel addressing protocol) is an IPv6 transition mechanism meant to transmit IPv6 packets between dual-stack nodes on top of an IPv4 network. It is defined in the informational RFC 5214.^[1]

Unlike 6over4 (an older similar protocol using IPv4 multicast), ISATAP uses IPv4 as a virtual non-broadcast multiple-access network (NBMA) data link layer, so that it does not require the underlying IPv4 network infrastructure to support multicast.

^ Templin, Fred L.; Gleeson, Tim; Thaler, Dave (March 2008). "Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) RFC 5214". tools.ietf.org. IETF Network Working Group. doi:10.17487/RFC5214. Retrieved 25 November 2020. Category: Informational

[1] Templin, Fred L.; Gleeson, Tim; Thaler, Dave (March 2008). "Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) RFC 5214". tools.ietf.org. IETF Network Working Group. doi:10.17487/RFC5214. Retrieved 25 November 2020. Category: Informational

[1]

IPv6 transition mechanisms
Standards Track
4in6 Lightweight 4over6 6in4 6over4 DS-Lite 6rd 6to4 NAT64 / DNS64 Teredo SIIT MAP
Experimental
TSP 4rd
Informational
Tunnel broker IVI TRT 464XLAT Public 4over6 ISATAP
Drafts
AYIYA dIVI
Deprecated
NAT-PT NAPT-PT
v t e