Try obtaining a Time Machine so that you can experience the menu from when it was good.
The Grilled Stuft Burrito, Grilled Stuft Nacho, the volcano burrito and lava sauce, the 1/2 lb cheesy potato burrito, the enchirito, the loaded grillers, the double layer taco, the chilito.
So many good menu items lost to time
A lot of networks were designed with ipv4 and NAT in mind. There really isn’t a cost benefit to migrate all your DHCP scopes, VLANs, Subnets, and firewall rules to IPv6 and then also migrate 1000’s of endpoints to it.
Much cheaper to just disable ipv6 entirely on the internal network (to prevent attacks using a rogue dhcpv6 server etc) and only use ipv6 on your WAN connections if you have to use it.