Issue geerlingguy#185: Added ability for configuring a public network.

Vagrantfile

@@ -29,6 +29,15 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
   else
     config.vm.network :private_network, ip: vconfig['vagrant_ip']
   end
+
+  if vconfig['vagrant_enable_public_network']
+    if vconfig['vagrant_public_ip'] == "0.0.0.0"
+      config.vm.network :public_network
+    else
+      config.vm.network :public_network, ip: vconfig['vagrant_public_ip']
+    end
+  end
+
   config.ssh.insert_key = false
   config.ssh.forward_agent = true
 

example.config.yml

@@ -10,6 +10,15 @@ vagrant_hostname: drupalvm.dev
 vagrant_machine_name: drupalvm
 vagrant_ip: 192.168.88.88
 
+# If you need to access this guest from a device other than the host you will
+# want to enable public networking. Optionally provide a static IP value.
+# Warning! Vagrant boxes are insecure by default and by design, featuring public
+# passwords, insecure keypairs for SSH access, and potentially allow root access
+# over SSH.
+# https://docs.vagrantup.com/v2/networking/public_network.html
+vagrant_enable_public_network: false
+# vagrant_public_ip: 192.168.1.100
+
 # A list of synced folders, with the keys 'local_path', 'destination', 'id', and
 # a 'type' of [nfs|rsync|smb] (leave empty for slow native shares). See
 # http://docs.drupalvm.com/en/latest/extras/syncing-folders/ for more info.