vpn

What is VPN or Virtual Private Network ? An encrypted connection between two or multiple private networks over public network is called VPN or Virtual Private Network.  It use to connect two private network over public network. In equation format it can be defined as VPN= Tunneling + Encryption In other words we ...

Advantages Reduce cost implementation (We don’t need to use lease line/ ISDN/ FR, mobile only need to dial local ISP to connect to branch office) Security (VPN provide strong security mechanism through encryption, authentication etc) Lower cost (Bring down cost of Wan equipment) More Flexible Simple Management Tunnel topology Interoperability of devices from multiple vendors Centralized VPN management Easy ...