Security is a critical factorin the design and deployment of wireless networks. Security issues are the mainconcerns for the businesses as the wireless data LANs are deployed on theinfrastructures. Wireless data transmits over radio frequency which introduces newopportunities for eavesdropping in the wireless communications. The data can bebreached with a suitable transceiver within the range of the communication. Itmakes an easier way to eavesdrop on the data passing through the radio waves. Wirelessnetwork offers a platform for an attacker to compromise data transmitting overwireless devices without requiring any physical arrangements.

The interceptionover the network to capture all of the traffic transmitting through multipledevices has become a crucial factor in the security. Therefore, businesses needto implement efficient technology that can protect against wireless networkbreaches.             Virtual Private Network (VPN) hasbeen introduced as a viable solution that builds a secure and privatecommunications over public network infrastructures. VPN essentially creates asecure tunnel between a public and private network with the use of encryptionmethods to transmit the data. A tunnel uses cryptographic techniques to preventother transmitter to intercept the data being transmitted over the network.

VPNleverages the use of different types of protocol to provide scalability andsecurity for the enterprise to secure the wireless LAN networks. The mostcommon types of protocols used in the implementation of VPN are IPsec and SSL. IPsecfunctions primarily at a network layer and SSL functions at an applicationlayer.

They both provide a valid solution for securing remote access overwireless networks but it is important in the way they can be strategicallydesign to secure the transmitted data over the networks as well as providebenefits to businesses. 

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