How to use this box with Vagrant:
Vagrant.configure("2") do |config|
config.vm.box = "ipv4v6/buster"
config.vm.box_version = "2020.05.29"
end
vagrant init ipv4v6/buster \
--box-version 2020.05.29
vagrant up
This version was created about 4 years ago.
Debian 10 (Buster)