Where to start? I started years ago working on my Cisco CCNA and CCNP certifications. I installed a Cisco Virtual Lab (VIRL). Above you will see all the configurations I made on IPv4 and IPv6. I was able to get a TFTP server working on my workstation to copy out the configurations in both IPv4 and IPv6. I created my own IPv6 addressing scheme and used it.
Last year I noticed my AT&T modem had an IPv6 address on it but no delegated prefix. Well, a delegated prefix is used by DHCPv6 for internal addressing. I called AT&T and after 3 weeks, I was able to get a delegated prefix: 2600:1702:980:25e0::/64. I abandoned by own IPv6 addressing scheme on the Fortinet 60E and started working on subnetting it. You will see the results in the menu. I needed 8 networks for the 8 layer 3 LAN ports of the 60E. I split one of them in half for the LAN interface and the 221-C Wireless access point.