Virtual private networks are secured private network connections, built on top of publicly-accessible infrastructure, such as the Internet or the public telephone network. VPNs typically employ some combination of encryption, digital certificates, strong user authentication and access control to provide security to the traffic they carry. They usually provide connectivity to many machines behind a gateway or firewall.

A VLAN acts like an ordinary Lan, but connected devices don't have to be physically connected to the same segment.while clients and servers may be located anywhere on a network, they are grouped to gether by VLAN technology, and broadcasts are sent to devices within the VLAN.VLAN configured using Media Access Control addresses can recognize when a station has been moved to another part on a switch. VLAN management software can then automatically reconfigure that station into its appropriate VLAN without the need to change the station's MAC or IP address.

When you invest on a networking system, you expect the optimum progress and that wouldn't be possible without having a proper maintenance.At first when you choose PFN Technology as your networking vendor,you can count on its superior technology, compatibility and reliability.