SAIF L2TP VPN - IPhone, IPad Please note that no more PPTP in apple IOS 10 or higher and macOS Sierra, so please use l2tp VPN we provided on IOS 10 and macOS Sierra. 1. From the iOS main screen, start the "Settings" application. 2. Open "VPN" in "General", and tap "Add VPN Configuration...". 3. Tap Type and select L2TP. Set the Server as "l2tpvpn.saif.sjtu.edu.cn", Account and Password is your SAIF account and password, and enter the Secret "090419". And switch "Send all Traffic" on. 4. You can start a VPN connection by using a created VPN connection setting at any time. Tap the "OFF" button to initiate a VPN connection.