Changing Your Settings 135Adding a VPNBefore you add a VPN you must determine whichVPN protocol to use: PPTP (Point-to-Point TunnelingProtocol), L2TP (Layer 2 Tunneling Protocol), L2TP/IPSec PSK (Pre-shared key based L2TP/IPSec), orL2TP/IPSec CRT (Certificate based L2TP/IPSec).1. Press ➔ and then tap(Settings) ➔ Wireless and networks ➔ VPNsettings.2. Tap Add VPN.To establish a PPTP (Point-to-Point TunnelingProtocol):1. Establish a VPN name (a name for thisconnection).2. Set the VPN server.3. Enable encryption (if desired).4. Set the DNS search domains.To establish a L2TP (Layer 2 Tunneling Protocol):1. Establish a VPN name (a name for thisconnection).2. Set the VPN server.3. Enable L2TP secret.4. Set L2TP secret.5. Set the DNS search domains.To establish a L2TP/IPSec PSK (Pre-shared key basedL2TP/IPSec):1. Establish a VPN name (a name for thisconnection).2. Set the VPN server.3. Set IPSEc pre-shared key.4. Enable L2TP secret.5. Set L2TP secret.6. Set the DNS search domains.To establish a L2TP/IPSec CRT (Certificate basedL2TP/IPSec):1. Establish a VPN name (a name for thisconnection).2. Set the VPN server.3. Enable L2TP secret.4. Set L2TP secret.5. Set user certificate.Note: A user certificate must be installed to use thissetting.6. Set CA certificate.Note: A CA certificate must be installed to use thissetting.7. Set the DNS search domains.Mobile networksBefore you use applications such as Google Mapsand find your location or search for places ofinterest, you must enable the Mobile networksoptions. Press ➔ and then tap(Settings) ➔ Wireless and networks ➔ Mobilenetworks.
