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  2. IPv6 address - Wikipedia

    en.wikipedia.org/wiki/IPv6_address

    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 ...

  3. List of IP protocol numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_IP_protocol_numbers

    This is a list of the IP protocol numbers found in the field Protocol of the IPv4 header and the Next Header field of the IPv6 header. It is an identifier for the encapsulated protocol and determines the layout of the data that immediately follows the header. Both fields are eight bits wide.

  4. Mapping of Address and Port - Wikipedia

    en.wikipedia.org/wiki/Mapping_of_Address_and_Port

    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 ...

  5. Reserved IP addresses - Wikipedia

    en.wikipedia.org/wiki/Reserved_IP_addresses

    Used for link-local addresses [5] between two hosts on a single link when no IP address is otherwise specified, such as would have normally been retrieved from a DHCP server 172.16.0.0/12 172.16.0.0–172.31.255.255

  6. IPv6 - Wikipedia

    en.wikipedia.org/wiki/IPv6

    Because of the significant internal differences between IPv4 and IPv6 protocol stacks, some of the lower-level functionality available to programmers in the IPv6 stack does not work the same when used with IPv4-mapped addresses. Some common IPv6 stacks do not implement the IPv4-mapped address feature, either because the IPv6 and IPv4 stacks are ...

  7. IPv6 transition mechanism - Wikipedia

    en.wikipedia.org/wiki/IPv6_transition_mechanism

    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]

  8. dIVI Translation - Wikipedia

    en.wikipedia.org/wiki/DIVI_Translation

    dIVI is an extension of 1:1 stateless IPv4/IPv6 translation (IVI Translation) with features of IPv4 address sharing and dual translation. dIVI-PD is a further extension of dIVI to be well used in Wireline (Fiber, DSL, Cable) and Wireless (3G/4G) access environment, where the prefix delegation (/64 or shorter) is preferred. dIVI-PD is now ...

  9. Address pool - Wikipedia

    en.wikipedia.org/wiki/Address_pool

    At the top level, the IP address pool is managed by the Internet Assigned Numbers Authority (IANA). The total IPv4 address pool contains 4 294 967 296 (2 32 ) addresses, while the size of the IPv6 address pool is 2 128 ( 340 282 366 920 938 463 463 374 607 431 768 211 456 ) addresses.