Wireless networking has changed the way of networks, mobile devices that has wireless functionality can be found every where in the world,instead of voice communication now people are using their mobile devices for data communication they are using notebooks, PDA (personal digital assistants) for connecting with the Internet while they are moving.
So the question how to make this connection secure and how to protect the credential information of user. The users that are using unencrypted wifi connection they are at risk their information can stolen by doing a small sniffing and by using the tool like firesheep. So the exact solution is VPN (virtual private network), VPN is not for only windows, Linux and MAC. Mobile devices and their software’s also support to us it. There are many free VPN services also available but for this article discuss about Mobile VPN or Mobile virtual private network.
What Is Mobile VPN
Mobile VPN or MVPN gives a feature for the user to use virtual private network while they are moving, VPN ensure the security of the data. There are mainly three parties involve in a VPN.
Most of the VPN are using a protocol named PPTP (Point-to-point-tunneling protocol), the main goal of VPN protocol is to provide a secure channel so the information does not stole by any means. Another protocol is IPsec ( Internet Protocol Security), it is the latest and modern VPN protocol that provides more feature for enhancing the security like authentication, key exchange between the parties and encryption of data.
VPN for iOS
If you are using Apple devices like Ipad, Iphone and Ipod touch than you can use VPN services to connect with the network (Internet) just on windows and Linux. Apple devices can handle PPTP with shared secret, L2TP with IPSec and IPSec with XAUTH.