VPN
What is VPN?
If you want to use your smartphone to access files on your company’s servers, you may need to set up a VPN (virtual private network). You can do this using the VPN application. VPN enables you to log in to your corporate server through the company’s firewall (security layer). You need to set up a VPN to access a corporate server in any of the following situations:
•Your company’s wireless local area network (LAN) is outside the firewall.
•Your company’s wireless LAN is inside the firewall, but you are accessing the network from outside the firewall (for example, from a public location or at home).
Check with your company’s system administrator to see if a VPN is required for accessing the corporate network.
TIP Being connected to VPN may sometimes interfere with web browsing. If you are having problems browsing in Web, disconnect VPN (see Disconnect from a profile) and then try using Web again.
Add a VPNC VPN profile
VPNC is a
BEFORE YOU BEGIN Get the following information from your system administrator:
•Profile name.
•VPN server.
•Username and password.
•Group ID.
•Group secret.
•Domain.
•Dead peer detection setting: When selected, if no VPN traffic is received for five minutes, the client checks to see if the VPN server is still available.
•Encryption method: Secure, Weak, None: Secure forces the client to use more secure AES or 3DES algorithms. Weak allows the weaker 1DES algorithm. Strong encryption may still be used, depending on what the VPN server decides. None enables no encryption. Encryption is not disabled and may still be used, depending on the VPN server. With the None option, the VPN profile is simply allowed to use no encryption.
•NAT traversal method:
1Open VPN 
.
2Tap Add Profile.
3If VPNC is not selected already in the Connection Type field, tap the Connection Type field, and tap VPNC.
4Tap Enter server name and enter the server name.
5Tap Next.
6Enter the information you got from your system administrator.
7Tap Connect.
Chapter 10 : Web and wireless connections | 161 |