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Stateless IP/ICMP Translation algorithm

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In computer networking, Stateless IP/ICMP Translation is a mechanism which translates IPv6 packets into IPv4 packets and/or vice-versa.

It was initially drafted in February of 2000 by E. Nordmark of Sun Microsystems and is described in RFC 2765 (Network Working Group at IETF).

Basically, SIIT describes a method by which a router interprets an IPv4 header and creates a parallel IPv6 header with equivalent information. The actual means of converting an IPv4 address to an IPv6 or vice-versa may vary, and the means by which the routing occurs is described as unspecified in the RFC.


Alternative technologies

RFC2765 - The IETF SIIT draft.