IPV6 COMPRESSION RULES HOW TO

Figure 2 below shows what the same address shown in Figure 1 would look like if the leading zeros were removed.įigure 2 – Compressing Leading ZerosAnother method is to use the double colon (::). It is important to note that the double colon (::) can only be used once within a single IPv6 address notation.

Both of these can be used in any number of combinations to notate the same address. There are two ways that an IPv6 address can be additionally compressed: compressing leading zeros and substituting a group of consecutive zeros with a single double colon (::). Figure 1 below shows a fully expanded IPv6 address: IPv6 Address NotationĪn IPv6 address has a total of 128 bits that are represented in hexadecimal form, using 8 – 4 hex character groupings.

IPV6 COMPRESSION RULES HOW TO

This article takes a look at IPv6 notation, how a single IPv6 address can be notated in a number of different ways, and how to expand and compress them correctly. When learning IPv6 addressing, one of the first things that people notice is that it is much more complex to look at than the previous IPv4 addresses this is compounded by the fact that a single address can be notated in a number of different ways and still refers to the same device.

Ipv6 compression rules