Connect an iOS device to NG Firewall via L2TP

NOTE: The preferred VPN connection method from iOS devices uses IKEv2. See Configuring an IKEv2 IPsec connection from iOS to Untangle NG Firewall

Overview

This article describes how to configure L2TP connections on iOS devices.  

For information on configuring L2TP on the NG Firewall click HERE.

The following screen shots were taken on an iPad running iOS version 8.3. Your configuration may appear differently depending on device and version.

1. Tap the Settings app
   
   
   
2. Then tap General and then VPN.
   
   
3. Then tap Add VPN Configuration...
   
   Clicking the image above will load it, full-size, in a new window. 
   
   
4.  Make sure L2TP is selected at the top and NOT PPTP or IPSec.
   
   
5. Fill out the following fields.
   • Description - Can be anything; this is for your reference only.
     
     
   • Server - This is the IP address (or domain name if configured) of your NG Firewall.  This is the Server Listen Address on the NG Firewall.
     
     
   • Account - This is the username configured under User Authentication on the NG Firewall
     
     
   • Password - This is the password configured under User Authentication on the NG Firewall.  Leave it blank if you want the user to enter the password every time the device connects.
     
     
   • Secret - This is the IPsec secret on the NG Firewall
     
     
    
6. Tap the Save button in the upper-right corner.
   
   Clicking the image above will load it, full-size, in a new window.
   
   
7. You should now be able to connect or disconnect from the NG Firewall via L2TP over IPSec by toggling the slider next to where it reads Not Connected or Connected depending on your current state.  
   
   Clicking the image above will load it, full-size, in a new window.