IPv6 transition mechanisms |
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Standards Track |
Experimental |
Informational |
Drafts |
Deprecated |
4in6 refers to tunneling of IPv4 in IPv6. [1] [2] It is an Internet interoperation mechanism allowing Internet Protocol version 4 (IPv4) to be used in an IPv6 only network. 4in6 uses tunneling to encapsulate IPv4 traffic over configured IPv6 tunnels as defined in RFC 2473. [3] 4in6 tunnels are usually manually configured but they can be automated using protocols such as TSP to allow easy connection to a tunnel broker. [4]