From the course: Networking Foundations: IP Addressing
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IPv6 addresses
- [Instructor] Remember the IPv6 address is 128 bits in length. And it's represented with hexadecimal. By default, the mask is 64 bits and we use prefix notation in order to represent it. Here's an example of an IPv6 address and mask. Notice this address, even with the use of hexadecimal for the presentation of the address, it's still a bit cumbersome. As a result, there were two modifications that are permitted with an IPv6 address for representation. The first is the most powerful since we'll often end up with several consecutive fields of zeros inside an IPv6 address. Notice we have that right in the middle of our address and mask example. So once within an address, and only once you can represent this entire section of zeros with a double colon, this really is a valuable feature because we often have IPv6 addresses that are padded with many sections of zeros. So now our optimized address presentation looks like this.…
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