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Mapping of Address and Port (MAP) is a proposal that combines A+P port address translation with the tunneling of legacy IPv4 protocol packets over an ISP's internal IPv6 network. MAP uses the extra bits available in the IPv6 address to contain the extra port range identifier bits of the A+P addressing pair that cannot be encoded directly into ...
4over6 is an IPv6 transition technology intended as a mechanism for Internet service providers to provide continued access to the IPv4 Internet over an IPv6-only service provider infrastructure. There are currently two versions of the protocol: Public 4over6 which is deployed but not recommended for new implementations, [ 1 ] and Lightweight ...
IPv6 over IPv4 tunnels [3] IPv4 over IPv6 tunnels [4] IPv6 over UDP/IPv4 tunnels for built-in traversal of network address translators (NAT) IP address assignment for both tunnel endpoints; Domain Name System (DNS) registration of end point addresses and reverse DNS; Tunnel keep-alive mechanism as needed; IPv6 address prefix assignment for routers
Mapping of Address and Port (MAP) is a Cisco IPv6 transition proposal which combines A+P port address translation with tunneling of the IPv4 packets over an ISP provider's internal IPv6 network. [37] MAP-T [38] and MAP-E [39] entered standards track in July 2015, and Sky Italia has deployed MAP-T in its internet services as early as year 2021. [40]
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.
IPv4 Residual Deployment has three main features: Mesh topology: between two endpoints, IPv4 packets take the same direct routes as IPv6 packets. [1]Shared IPv4 addresses: to deal with the unavoidable IPv4-address shortage, several customers can be assigned a common IPv4 address, with disjoint TCP/UDP port sets assigned to each (an application of the general A+P model of RFC 6346).
6in4, sometimes referred to as SIT, [a] is an IPv6 transition mechanism for migrating from Internet Protocol version 4 (IPv4) to IPv6. It is a tunneling protocol that encapsulates IPv6 packets on specially configured IPv4 links according to the specifications of RFC 4213. The IP protocol number for 6in4 is 41, per IANA reservation. [1]
Officially, this mechanism was created for Microsoft Windows XP and onwards PCs to provide IPv6 connectivity to IPv4 clients by connecting to ipv6.microsoft.com and works in conjunction with IP Helper service and Teredo Tunneling Adapter Interface driver. The service also opens a UPNP port on the router for relaying.