Changing Your Settings 159Wireless and network ➔ Tethering and portable hotspot.For more information, refer to “Tethering” on page 149.Portable Wi-Fi HotspotThis feature allows you to turn your phone into a Wi-Fi hotspot.The feature works best when used in conjunction with HSPA+ (4G)data services (although 3G service can also be used).Important!: The Portable Wi-Fi Hotspot service can not be active at the sametime as Wi-Fi. Please close your Wi-Fi connection prior tolaunching the Portable Wi-Fi service.For more information, refer to “Portable Wi-Fi Hotspot” onpage 149.VPN settingsThe VPN settings menu allows you to set up and manage VirtualPrivate Networks (VPNs).Important!: Before you can use a VPN you must establish and configure one.Adding a VPNBefore you add a VPN you must determine which VPN protocol touse: PPTP (Point-to-Point Tunneling Protocol), L2TP (Layer 2Tunneling Protocol), L2TP/IPSec PSK (Pre-shared key basedL2TP/IPSec), or L2TP/IPSec CRT (Certificate based L2TP/IPSec).1. Press ➔ and then tap (Settings) ➔Wireless and network ➔ VPN settings.2. Tap Add VPN.To establish a PPTP VPN (Point-to-Point Tunneling Protocol):1. Establish a VPN name (a name for this connection).2. Assign a server by using Set VPN server.3. Enable encryption (if desired).4. Set the DNS search domains.To add an L2TP VPN (Layer 2 Tunneling Protocol):1. Establish a VPN name (a name for this connection).2. Assign a server by using Set the VPN server.3. Enable L2TP secret.4. Set L2TP secret.5. Set the DNS search domains.To add an L2TP/IPsec PSK VPN (Pre-shared key based L2TP/IPSec):1. Establish a VPN name (a name for this connection).2. Assign a server by using Set the VPN server.3. Utilize the Set IPsec pre-shared key.
