From the course: Networking Foundations: Networking Basics
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IP version 6 addresses
From the course: Networking Foundations: Networking Basics
IP version 6 addresses
- Now we've learned that an IPv4 address is made up of 32 bits. That gives us two to the power of 32 possible addresses. However, an IPv6 address is made up of 128 bits. That gives us two to the power of 128 possible addresses. So even though our IPv4 addresses are full, we have plenty of IPv6 addresses to go around to everybody on the planet. Much like IPv4 has a network and a host portion of an address, IP version six has a prefix and host portion of an address. And instead of talking about a subnet mask an IPv6 address has a prefix length. That says, how many of those 128 bits represent the network. And to make it easier to write a 128 bit address, these IPv6 addresses, they're typically written using hexadecimal notation or a single hexadecimal digit can represent one of 16 different values. And a grouping of four of these hexadecimal digits, that's called a quartet and an IPv6 address has eight of those quartets.…
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