Internet Protcol version 6 address Notion




 The IPv6 was created to help with the address exhaustion that was happening with IPv4. IPv6 was 32-bit, and its address was composed of all numbers; on the other hand, IPv6 is 128-bit with numbers and letters separated by colons. The address with IPv6 is made up of 8 groups of 4 hexadecimal numbers, with each group being 16 bits.

The example of the IPv6 address is FE80:0000:0000:0CDE:1257:0000:211E:729C.

The first four groups represent the network address, which contains information about routing prefixes and subnet IDs. The second group of addresses is the host ID.

Even though the IPv6 address is long, it can be written in a shorter form.

First, any leading zeros can be dropped from any group. For example, 0CDE becomes CDE.

Second, any string of consecutive zeros can be represented by:: (two colons). For example,

The IPv6 address in the shortcut will be fe80::cde:1257:0:211e:729c

Another common rule is that a pair of colons (::)can only be used once in the address.

 

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