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6to4 is especially relevant during the initial phases of deployment to full, native IPv6 connectivity, since IPv6 is not required on nodes between the host and the destination. However, it is intended only as a transition mechanism and is not meant to be used permanently. 6to4 may be used by an individual host, or by a local IPv6 network.
NAT64 is an IPv6 transition mechanism that facilitates communication between IPv6 and IPv4 hosts by using a form of network address translation (NAT). The NAT64 gateway is a translator between IPv4 and IPv6 protocols, [1] for which function it needs at least one IPv4 address and an IPv6 network segment comprising a 32-bit address space.
Therefore, IPv6 transition mechanisms are needed to enable IPv6 hosts to reach IPv4 services and to allow isolated IPv6 hosts and networks to reach each other over IPv4 infrastructure. [ 50 ] According to Silvia Hagen , a dual-stack implementation of the IPv4 and IPv6 on devices is the easiest way to migrate to IPv6. [ 51 ]
6rd was developed by Rémi Després.It is a mechanism to facilitate rapid deployment of the IPv6 service across IPv4 infrastructures of Internet service providers ().It uses stateless address mappings between IPv4 and IPv6 addresses, and transmits IPv6 packets across automatic tunnels that follow the same optimized routes between customer nodes as IPv4 packets.
IPv6-ICMP ICMP for IPv6: RFC 4443, RFC 4884: 0x3B 59 IPv6-NoNxt No Next Header for IPv6: RFC 8200: 0x3C 60 IPv6-Opts Destination Options for IPv6: RFC 8200: 0x3D 61 Any host internal protocol 0x3E 62 CFTP CFTP 0x3F 63 Any local network 0x40 64 SAT-EXPAK SATNET and Backroom EXPAK 0x41 65 KRYPTOLAN Kryptolan 0x42 66 RVD MIT Remote Virtual Disk ...
Thus, for example, when an IP packet reaches its destination (sub)network, the destination IP address (a layer 3 or network layer concept) is resolved with the Address Resolution Protocol for IPv4, or by Neighbor Discovery Protocol (IPv6) into the MAC address (a layer 2 concept) of the destination host.
IVI Translation refers to a stateless IPv4/IPv6 translation technique. [1] It allows hosts in different address families (IPv4 and IPv6) communicate with each other and keeps the end-to-end address transparency. [2] Stateless NAT64 can be used in 4 different scenarios: [3] An IPv6 network to the IPv4 Internet; The IPv4 Internet to an IPv6 network
Mageia has had full support for IPv6 only and IPv4 + IPv6 since Mageia 7, as well as continuing to support IPv4 only systems. [15] macOS: Mac OS X 10.7 (Lion) Yes Yes Yes [16] Yes [17] Versions 10.7 through 10.10 often prefer IPv4 even when working IPv6 connectivity is available. [18]