Hexadecimal characters are not case sensitive, therefore an address can be written either in uppercase or lowercase, both are equivalent. Each group is separated from the others by colons (:) as shown in figure 1.
The IPv6 AddressĪn IPv6 address is 128 bits in length and is written as eight groups of four hexadecimal digits. There are rules to shorten down the address and make it easier to work with. In this lesson, we are going to see that working with IPv6 addresses is not that hard. The other distinct difference is that IPv6 includes new address types such as link-local addresses. It is quite different than the IPv4 one and at first, it seems hard to grasp. You can use the both zero and leading zero compression together by following the rules of these compression techniques.When engineers first encounter IPv6, the most obvious and recognizable feature of the protocol is the IP address. IPv6 address with Leading zero compression:Ģ001:1265:0:0:AE4:0:5B:6B0 Both Zero and Leading zero compression If you have all zero in a hextex you can represent this hextex with one zero. In leading zero compression you can eliminate the starting zero(s) from any hextex. Review the example for better understanding.Ģ001:1265::0AE4:0000:005B:06B0 IPv6 Leading Zero Compression In zero compression you can represent group of zeros by one double-colon (::) but you can perform this only once in your IPv6 address, means if you have two group of zeros in your IPv6 address you can use the double-colon only once. These compression rules and methods are as follow: IPv6 address consist of 8 hextets or parts which is normally difficult to remember, therefore there are some compression method, using compression techniques you can represent IPv6 in more understandable and simple way. This is a simple example of IPv6 address, you can see in below figure IPv6 address have eight hextets/parts and each hextet/part consist of 4 digits and of 16bits, while every digits is of 4bits that you can find from above table. Representation of all hexadecimal number/digits in binary form is as follows: Hexadecimal #
IPv6 addresses are in hexadecimal form, so each digit is of four bits, IPv6 address’s consist of possible digits are 0 1 2 3 4 5 6 7 8 9 A B C D E F. IPv6 address is of 128 bits and represented in eight octets of 16 bits.
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