Internet Protocol version 4 (IPv4) is the first version of the Internet Protocol (IP) as a standalone specification. It is one of the core protocols of...
42 KB (5,618 words) - 02:28, 21 May 2025
IPv6 (redirect from IPv4-compatible address)
to deal with the long-anticipated problem of IPv4 address exhaustion, and was intended to replace IPv4. In December 1998, IPv6 became a Draft Standard...
60 KB (7,892 words) - 13:59, 7 May 2025
Classless Inter-Domain Routing (redirect from IPv4 subnetting reference)
on routers across the Internet, and to help slow the rapid exhaustion of IPv4 addresses. IP addresses are described as consisting of two groups of bits...
32 KB (3,111 words) - 09:43, 20 May 2025
IPv4 address exhaustion is the depletion of the pool of unallocated IPv4 addresses. Because the original Internet architecture had fewer than 4.3 billion...
65 KB (6,434 words) - 06:29, 18 May 2025
IP address (section IPv4 addresses)
Internet Protocol version 4 (IPv4) was the first standalone specification for the IP address, and has been in use since 1983. IPv4 addresses are defined as...
32 KB (4,384 words) - 12:21, 27 March 2025
User Datagram Protocol (redirect from IPv4 pseudo header)
(16 bits): The use of the Checksum and Source Port fields is optional in IPv4 (light purple background in table). In IPv6 only the Source Port field is...
22 KB (2,789 words) - 14:22, 6 May 2025
IPv6 address (section Transition from IPv4)
infrastructure of the Internet, Internet Protocol version 4 (IPv4). In contrast to IPv4, which defined an IP address as a 32-bit value, IPv6 addresses...
61 KB (8,455 words) - 06:07, 21 May 2025
Reserved IP addresses (section IPv4)
reserved various Internet Protocol (IP) addresses for special purposes. IPv4 designates special usage or applications for various addresses or address...
1 KB (716 words) - 04:36, 26 January 2025
Private network (section Private IPv4 addresses)
networks (LANs) in residential, office, and enterprise environments. Both the IPv4 and the IPv6 specifications define private IP address ranges. Most Internet...
11 KB (1,572 words) - 13:40, 20 May 2025
Link-local address (section IPv4)
also known as auto-IP, automatic private IP addressing (APIPA, specific to IPv4), and stateless address autoconfiguration (SLAAC, specific to IPv6). While...
7 KB (1,113 words) - 13:30, 10 March 2025
to as TCP/IP. The first major version of IP, Internet Protocol version 4 (IPv4), is the dominant protocol of the Internet. Its successor is Internet Protocol...
22 KB (2,595 words) - 13:19, 15 May 2025
Multicast address (redirect from IPv4 multicast address)
layer (layer 3 for OSI) for Internet Protocol Version 4 (IPv4) or Version 6 (IPv6) multicast. IPv4 multicast addresses are defined by the most-significant...
24 KB (2,386 words) - 16:19, 23 February 2025
as a MAC address, associated with a internet layer address, typically an IPv4 address. The protocol, part of the Internet protocol suite, was defined in...
20 KB (2,966 words) - 04:27, 29 April 2025
An IPv4 shared address space is a block of Internet Protocol version 4 addresses for use by Internet service providers (ISPs) to alleviate the risk of...
4 KB (744 words) - 16:48, 5 April 2025
NAT64 (redirect from IPv4-embedded IPv6 addresses)
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...
6 KB (686 words) - 17:41, 21 March 2025
Internet checksum (redirect from IPv4 header checksum)
called the IPv4 header checksum is a checksum used in version 4 of the Internet Protocol (IPv4) to detect corruption in the header of IPv4 packets. It...
5 KB (713 words) - 19:24, 18 January 2025
Some large /8 blocks of IPv4 addresses, the former Class A network blocks, are assigned in whole to single organizations or related groups of organizations...
32 KB (1,419 words) - 15:41, 27 March 2025
version 4 (IPv4) infrastructure in use since 1983 to the successor addressing and routing system of Internet Protocol Version 6 (IPv6). As IPv4 and IPv6...
24 KB (3,160 words) - 13:45, 26 April 2025
Internet Protocol version 4 (IPv4), but its successor, IPv6, has been increasingly deployed since approximately 2006. An IPv4 address consists of 32 bits...
26 KB (3,106 words) - 21:40, 14 May 2025
List of IP protocol numbers (redirect from List of IPv4 protocol numbers)
list of the IP protocol numbers found in the 8-bit Protocol field of the IPv4 header and the 8-bit Next Header field of the IPv6 header. It is an identifier...
21 KB (152 words) - 21:58, 12 May 2025
IP fragmentation (section IPv4 and IPv6 differences)
the overall architectural approach to fragmentation, are different between IPv4 and IPv6. RFC 791 describes the procedure for IP fragmentation, and transmission...
7 KB (803 words) - 08:36, 25 April 2024
This is a list of countries by IPv4 address allocation. The Internet Assigned Numbers Authority (IANA) distributes large blocks of addresses to regional...
20 KB (210 words) - 06:06, 22 January 2025
The Internet Protocol Version 4 (IPv4) address 0.0.0.0 can have multiple uses. IANA, who allocate IP addresses globally, have allocated the single IP address...
6 KB (842 words) - 02:03, 13 March 2025
IPv6 deployment (section Coexistence with IPv4)
mid-2000s. IPv6 was designed as the successor protocol for IPv4 with an expanded addressing space. IPv4, which has been in use since 1982, is in the final stages...
153 KB (12,962 words) - 23:02, 15 May 2025
Dot-decimal notation (section IPv4 address)
(decimal) numbers. In computer networking, Internet Protocol Version 4 (IPv4) addresses are commonly written using the quad-dotted notation of four decimal...
10 KB (1,150 words) - 23:30, 3 April 2025
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...
5 KB (557 words) - 11:56, 15 June 2024
IPv6 over IPv4 tunneling protocol, requires that the tunnel endpoint have a public IPv4 address. However, many hosts currently attach to the IPv4 Internet...
28 KB (3,485 words) - 14:23, 31 August 2024
Protocol version 4 (IPv4) to version 6 (IPv6) and a system that allows IPv6 packets to be transmitted over an IPv4 network (generally the IPv4 Internet) without...
11 KB (1,529 words) - 06:04, 7 June 2023
RIPE NCC (section Fees and IPv4 Transfer Market)
RIR oversees the allocation and registration of Internet number resources (IPv4 addresses, IPv6 addresses and autonomous system numbers) in a specific region...
19 KB (1,752 words) - 12:27, 9 May 2025