diff --git a/packer/README.md b/packer/README.md
index 305101c..0e9da9b 100644
--- a/packer/README.md
+++ b/packer/README.md
@@ -1,11 +1,21 @@
-Creating VirtualBox/Vagrant box
+Creating a Packer box
 ---
+Create a host-only network interface for VirtualBox (unless ```ifconfig -a``` already lists ```vboxnet0```)
+```
+VBoxManage hostonlyif create >/dev/null 2>&1
+```
+
+Now assign an IP to this interface with a subnet that doesn't conflict with your home ones (avoid ```192.168.0.x```), for example ```192.168.23.x```
+```
+vboxmanage hostonlyif ipconfig vboxnet0 --ip 192.168.23.1 --netmask 255.255.255.0
+```
+
 Edit file ```alfresco-boxes/packer/precise-alf421.json``` to choose an IP that can be bridged to one of your host Network Interfaces:
 ```
 {
   "type": "shell",
   "execute_command": "echo 'vagrant' | sudo -S sh '{{ .Path }}'",
-  "inline": ["/tmp/static-ip.sh 192.168.1.223 192.168.1.1 255.255.255.0"]
+  "inline": ["/tmp/static-ip.sh 192.168.23.223 192.168.23.1 255.255.255.0"]
 }
 ```
 
diff --git a/packer/precise-alf421.json b/packer/precise-alf421.json
index 43feb9f..4c3cafb 100644
--- a/packer/precise-alf421.json
+++ b/packer/precise-alf421.json
@@ -56,6 +56,21 @@
         }
     ],
     "provisioners": [
+        {
+          "type": "file",
+          "source": "../common/scripts/common.sh",
+          "destination": "/home/vagrant/common.sh"
+        },
+        {
+          "type": "file",
+          "source": "../common/scripts/static-ip.sh",
+          "destination": "/home/vagrant/static-ip.sh"
+        },
+        {
+          "type": "shell",
+          "execute_command": "echo 'vagrant' | sudo -E -S sh '{{ .Path }}'",
+          "inline": ["chmod 755 /home/vagrant/static-ip.sh && /home/vagrant/static-ip.sh 192.168.23.23 192.168.23.1 255.255.255.0"]
+        },
         {
             "cookbook_paths": [
                 "../common/vendor-cookbooks"
@@ -96,16 +111,6 @@
             "skip_install": false,
             "type": "chef-solo"
         },
-        {
-          "type": "file",
-          "source": "../common/scripts/common.sh",
-          "destination": "/home/vagrant/common.sh"
-        },
-        {
-          "type": "file",
-          "source": "../common/scripts/static-ip.sh",
-          "destination": "/home/vagrant/static-ip.sh"
-        },
         {
           "type": "shell",
           "execute_command": "echo 'vagrant' | sudo -E -S sh '{{ .Path }}'",
@@ -114,11 +119,6 @@
             "../common/scripts/vagrant-ssh-key.sh",
             "../common/scripts/vbox-additions.sh"
           ]
-        },
-        {
-          "type": "shell",
-          "execute_command": "echo 'vagrant' | sudo -E -S sh '{{ .Path }}'",
-          "inline": ["chmod 755 /home/vagrant/static-ip.sh && /home/vagrant/static-ip.sh 192.168.1.223 192.168.1.1 255.255.255.0"]
         }
     ]
 }