This is just a simple vagrantfile script for you to deploy multiple Ubuntu 20.04 Box in your Vagrant-vms.
Use git clone.
git clone https://github.com/oepilcore/MultiVM-Vagrantfile.git
Copy the file to your vagrant-vms folder *For example mine folder was installed on drive D
mv MultiVM-Vagrantfile /d/vagrant-vms/
cd /vagrant-vms/MultiVM-Vagrantfile
vagrant up
Please take note of some lines: Change these lines using your private IP
config.vm.network "private_network", ip: "xxx.xxx.xxx.xxx"