From the course: Cisco Networking Foundations: IP Addressing

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IPv6 address format

IPv6 address format

From the course: Cisco Networking Foundations: IP Addressing

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IPv6 address format

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- [Instructor] In this video, let's consider the format of an IP version six address. With an IP version four address, you recall we had network bits followed by host bits. It's very similar with IP version six. We have prefix bits followed by host bits and we refer to something called the prefix length. The prefix length is the number of bits in the prefix. And what is the prefix? Even though we typically don't call it the network, it's the network address. So we have bits referring to the network and bits referring to the host on that network and grand total, we have 128 bits in an IP version six address compared to only 32 bits in an IP version four address. That means we don't have the issue that we have with IP version four addresses, where we have depleted pools of addresses that can be handed out. There are plenty of IP version six addresses to go around. Another benefit of IP version six is it does not rely…

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