Add a Virtual Private Network - Samsung Galaxy S® III
From the Home screen, navigate: Apps > Settings > More settings.
If presented with a lock screen notification, tap OK. Refer to Set Up Screen Lock (Pattern, PIN, or Password only) for assistance.
Tap Add VPN network.
From the Name field, enter the appropriate name. Contact the VPN administrator for assistance with server information and credentials.
From the Type field, tap the Dropdown menu (located to the right of the field) then select the VPN type:
PSK L2TP/IPSec RSA
IPSec Xauth PSK
IPSec Xauth RSA
IPSec Hybrid RSA
Enter the required information into the applicable fields then tap Save (located in the lower-right): If applicable, tap Show advanced options to configure the following: The available options vary depending upon the selected VPN type.