Trying to configure multi-machine, where each machine has it's own SSH IP and port

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

  config.vm.box = "hashicorp/precise32"

  config.vm.define :servera do |servera_config|
    servera_config.vm.host_name = "servera"
    servera_config.ssh.port = "2301"
    servera_config.ssh.host = "192.168.50.11"
    servera_config.vm.network "private_network", ip: "192.168.50.11"
  end
  
  config.vm.define :serverb do |serverb_config|
    serverb_config.vm.host_name = "serverb"
    serverb_config.ssh.port = "2302"
    serverb_config.ssh.host = "192.168.50.12"
    serverb_config.vm.network "private_network", ip: "192.168.50.12"
  end
  
  config.vm.define :serverc do |serverc_config|
    serverc_config.vm.host_name = "serverc"
    serverc_config.ssh.port = "2303"
    serverc_config.ssh.host = "192.168.50.13"
    serverc_config.vm.network "private_network", ip: "192.168.50.13"
  end

end