IPv6 Is the next generation Internet Protocol. If you are a network tech or engineer, you need to get familiar with IPv6 one way or another. The video explains how to do IPv6 subnetting like you do with IPv4.
https://www.site24x7.com/tools/ipv6-subnetcalculator.html
https://www.crucial.com.au/blog/2011/04/15/ipv6-subnet-cheat-sheet-and-ipv6-cheat-sheet-reference/
