Intra-Site Automatic Tunnel Addressing Protocol
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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.
~2 min read
Encyclopedic overview
4 sectionsContents
- Criticisms of ISATAP
- Implementations of ISATAP
- References
- External links
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.
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.
Excerpted from Wikipedia’s “Intra-Site Automatic Tunnel Addressing Protocol” article, available under the CC BY-SA 4.0 licence.