It still helps. I have a 1U in a colo which gives me a /64 for ipv6 and ~5 addresses for ipv4. I just set up a dual stack kubernetes cluster on 6 virtual machines. When I want to ssh into one of the machines, my options are either:

  1. Use IPv6 which works and goes directly to the virtual machine because each virtual machine grabs its own address from one of my 18446744073709551616 addresses.
  2. Use IPv4 and either have to do a jumphost or do port forwarding, giving each virtual machine its own port which forwards to port 22 on the virtual machine.
  3. Use a VPN.

I have all 3 working, but #1 was significantly less setup and works the best.

Also being able to generate unique ULA subnets is super nice.