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This article will explain in detail what are the differences between ipv4 and ipv6, Xiaobian thinks it is quite practical, so share it for everyone to make a reference, I hope you can gain something after reading this article.

IPv6 has a much larger address space than IPv4; IPv4 uses 32 binary addresses; IPv6 has the advantage of greatly expanding the available address space, IPv6 addresses are 128 bits long.

Differences between IPV4 and IPV6:

IPv6 has a much larger address space than IPv4. This is because IPv6 uses 128-bit addresses, whereas IPv4 uses only 32 bits.

IPv6 binary system is 128 bits in length, with 16 bits as a group, each group separated by colons ":", can be divided into 8 groups, each group is represented by 4-bit hexadecimal. For example: 2001:0db8:85a3:08d3:1319:8a2e:0370:7344.

Extended information:

Communication with other network elements on the network. IP addresses are now divided into IPv4 and IPv6 categories, and the vast majority of IP addresses in use today are IPv4 addresses.

IPv4 stands for Internet Protocol version 4, the fourth version of the IP protocol. The vast majority of traffic on the Internet today is encapsulated in IPv4 packet format. IPv4 is described in detail in IETF publication RFC 791.

IPv4 uses 32 binary addresses, so the IPv4 address space is 2 = 4294967296. Initially, every user connected to the Internet was assigned an IPv4 address, so there were fewer and fewer unassigned IPv4 addresses, resulting in the problem of IPv4 address exhaustion. In order to fundamentally solve the problem of IPv4 address exhaustion, IPv6 came into being.

The advantage of IPv6 is that it greatly expands the available address space, IPv6 addresses are 128 bits long. If the Earth's surface (both land and water) were covered with computers, IPv6 would allow 7*10^23 IP addresses per square meter; if the rate of address allocation was 1 million per microsecond, it would take 10^19 years to allocate all addresses. Let's take a look at IPv6 addresses.

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