Samsung Galaxy S II GT-I9100 User Manual page 122

Option
PPP encryption
(MPPE)
Show
advanced
options
Available options may vary depending on the VPN type.
3
When you are finished, select
›
Connect to a private network
1
In the application list, select
VPN.
2
Select a private network to connect.
3
Enter the user name and password and select
Function
Set to encrypt data before sending it to
the VPN server.
Set to change the advanced network
settings.
Save.
Settings
Connectivity
122
→ More settings
Connect.
→