![]() IPv6 addresses lies in mainly any of the three categories: The above demonstration was to establish that it is very easy to calculate the prefix value for an IPv6 address. In the same manner, when we will consider 3-sets for network portion, then the prefix will be /48 and in 2-sets, it will be /32. When we are using 4-sets out of 8-sets the IPv6 address, the prefix will be /64, and how that comes?Įach set is having 16-bits and 4-sets having 64-bits. IPV6 ADDRESS TYPES HOW TOThe two charts exhibit the IPv4 and IPv6 for- how we can change the prefix value as per the number of IP addresses we require.įor the better clarity about the prefix, you can see how to calculate the number of bits used for the network portion. Also to minimize the wastage of IP addresses, we have to accomplish the process of subnetting. But for IPv6, we always represent it in the 'prefix' only.Īccording to the number of IP addresses we require for our devices on the network, we need to know- how many bits should we use for the network portion, and how any bits we need for the host portion. ![]() ![]() Prefix Length of IPv6 vs IPv4įor IPv4, the bits used for the network portion can be shown either in prefix or subnet mask. Because the selection of right prefix-lengths is imperative to minimize the wastage of IP Addresses. Since various network designs places varying network size requirements, we practically need to choose among the prefix-length(s) available to us, w.r.t., the IP in question. But in case of IPv6, we can use only the prefix, to show the number of bits used for network portion. In IPv4, you can use either the subnet mask or prefix, to represent the number of bits used for the network portion. Well, regardless of the IP version of the address we use, it essentially contains two sections: network portion, and host portion. Here we have clearly plotted all the 128-bits of an IPv6 address. I took one IPv6 address and convert into binary in the example given below: If you want to practice the conversion, with the help of below-given table you can do it easily, it depicts the decimal, binary, and hexadecimal numbers. The conversion from hexadecimal to binary, or vice-versa, is very easy.
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