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Historical IP address lists: "INTERNET PROTOCOL ADDRESS SPACE". Internet Assigned Numbers Authority (IANA). October 2000. Archived from the original on 18 October 2000 First version of IANA table with historical notes via the Internet Archive Wayback Machine. "Internet Protocol v4 Address Space".
Class Leading bits Size of network number bit field Size of rest bit field Number of networks Addresses per network Total addresses in class Start address End address Default subnet mask in dot-decimal notation CIDR notation; Class A 0 8 24 128 (2 7) 16,777,216 (2 24) 2,147,483,648 (2 31) 0.0.0.0: 127.255.255.255 [a] 255.0.0.0 / 8: Class B 10 ...
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. [1]
An IPv4 address has a size of 32 bits, which limits the address space to 4 294 967 296 (2 32) addresses. Of this number, some addresses are reserved for special purposes such as private networks (≈18 million addresses) and multicast addressing (≈270 million addresses).
The IPv4 header is variable in size due to the optional 14th field (Options). The IHL field contains the size of the IPv4 header; it has 4 bits that specify the number of 32-bit words in the header. The minimum value for this field is 5, [33] which indicates a length of 5 × 32 bits = 160 bits = 20 bytes. As a 4-bit field, the maximum value is ...
This is a list of countries by IPv4 address allocation. The Internet Assigned Numbers Authority (IANA) distributes large blocks of addresses to regional Internet registries (RIRs), which then assign them to national Internet registries and local Internet registries within their respective service regions. [ 1 ]
NBMA Address Resolution Protocol: RFC 1735: 0x37 55 MOBILE IP Mobility (Min Encap) RFC 2004: 0x38 56 TLSP Transport Layer Security Protocol (using Kryptonet key management) 0x39 57 SKIP Simple Key-Management for Internet Protocol: RFC 2356: 0x3A 58 IPv6-ICMP ICMP for IPv6: RFC 4443, RFC 4884: 0x3B 59 IPv6-NoNxt No Next Header for IPv6: RFC 8200 ...
The following other wikis use this file: Usage on de.wikibooks.org Fachinformatik/ Adressierung; Usage on en.wikiversity.org WikiJournal of Science/A Survey on Internet Protocol version 4 (IPv4)