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6to4 address. For any 32-bit global IPv4 address that is assigned to a host, a 48-bit 6to4 IPv6 prefix can be constructed for use by that host (and if applicable the network behind it) by appending the IPv4 address to 2002:: / 16. For example, the global IPv4 address 192.0.2.4 has the corresponding 6to4 prefix 2002:c000:0204:: / 48. This gives ...
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.
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
The function of the translator is to convert IPV6 into IPV4 addresses and vice versa. TRT accomplishes this translation through IP address mapping and a custom IP address. [11] The address, for example, if packets are to be transmitted from an IPv6 address (fec0:0:0:1::/64) to an IPV4 address (10.1.1.1) would read as fec0:0:0:1::10.1.1.1.
RFC 2663 uses the term network address and port translation (NAPT) for this type of NAT. [4] Other names include port address translation (PAT), IP masquerading, NAT overload, and many-to-one NAT. This is the most common type of NAT and has become synonymous with the term NAT in common usage.
IPv4-compatible IPv6 unicast address IPv4-mapped IPv6 unicast address Hybrid dual-stack IPv6/IPv4 implementations recognize a special class of addresses, the IPv4-mapped IPv6 addresses. [ 62 ] : §2.2.3 [ 36 ] These addresses are typically written with a 96-bit prefix in the standard IPv6 format, and the remaining 32 bits are written in the ...
IPv6 addresses are assigned to organizations in much larger blocks as compared to IPv4 address assignments—the recommended allocation is a / 48 block which contains 2 80 addresses, being 2 48 or about 2.8 × 10 14 times larger than the entire IPv4 address space of 2 32 addresses and about 7.2 × 10 16 times larger than the / 8 blocks of IPv4 ...
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]