IPv4 - significado y definición. Qué es IPv4
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Qué (quién) es IPv4 - definición

VERSION 4 OF THE INTERNET PROTOCOL
IPV4; IP Version 4; IP4; Internet Protocol Version 4; Ipv4; IP 4; IPv4 internet; IPv4 Internet; IPv4 options; IPv4 address; IPv4 addresses; IPv4 Header; IPv4 header; Ipv4 packet; IPv4 packet; IPv4 network; Internet protocol version four; IP version 4; IPv4 network address; IPv4
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IPv4         
Internet Protocol version 4         
<networking, protocol> The version of Internet Protocol in widespread use in 2000. (2000-12-19)
IPv4 address exhaustion         
DEPLETION OF THE POOL OF UNALLOCATED IPV4 ADDRESSES
IP address shortage; IPv4 address shortage; IP Pool; IP Address Starvation; Ipv4 address exhaustion; IP address starvation; IP address exhaustion; IP exhaustion; IPcalypse; IPv4 exhaustion; IPv4 address space exhaustion; Ipv4 depletion; IPv4 address depletion; IPv4 exhaustion problem; IPv4 address exhaustion problem; Ipv4 address depletion
IPv4 address exhaustion is the depletion of the pool of unallocated IPv4 addresses. Because the original Internet architecture had fewer than 4.

Wikipedia

Internet Protocol version 4

Internet Protocol version 4 (IPv4) is the fourth version of the Internet Protocol (IP). It is one of the core protocols of standards-based internetworking methods in the Internet and other packet-switched networks. IPv4 was the first version deployed for production on SATNET in 1982 and on the ARPANET in January 1983. It is still used to route most Internet traffic today, even with the ongoing deployment of Internet Protocol version 6 (IPv6), its successor.

IPv4 uses a 32-bit address space which provides 4,294,967,296 (232) unique addresses, but large blocks are reserved for special networking purposes.

Ejemplos de pronunciación para IPv4
1. We're switching from IPv4 to IPv6,
Future Crimes _ Marc Goodman _ Talks at Google
2. we need to have a different I.P. address space than the IPv4.
Reimagining the Internet _ Vint Cerf _ Talks at Google
3. The reason that's so important is that the IPv4 address space only has 32 bits.
Reimagining the Internet _ Vint Cerf _ Talks at Google
Ejemplos de uso de IPv4
1. IPv4 offers a maximum of just over 4 billion such addresses.
2. When the IPv4 internet was developed in the 1'80s, internet programmers gave each address a "16–bit" number, unaware of how huge the internet would later become.
3. It has certainly had a huge psychological impact as many companies were previously running combined IPv4 and IPv6 systems, providing little impetus to move to IPv6.
4. Yet the bad news is that, despite being invented 10 years ago, IPv6 remains a poor cousin to the old IPv4.
5. A conversion from the IPv4 to the IPv6 standard for Web addresses would improve the quality of Web service and data security and create new addresses needed for future expansion.