VPN technology which is also known as Virtual Private Network is a revolutionary technology that allows one to remotely connect to a private network so that they are virtually connected to that network in the same way as if they are on-site and plugged into the LAN. VPN connectivity is useful for remote workers to connect office resources which mainly consist of internal web portals and file shares. It makes them get rid of the necessity of being physically present in the office.
There are many VPN protocols available and different types of VPN can be used according to the needs of the customers. LAN-to-LAN VPN’S are used for connecting multiple networks together so that corporate offices can have connectivity to multiple branch offices for internal communication and sharing of data. It allows firewalls to still block any outside access that tries to connect to its protected resources.
Though VPN connections are internal or already on the trusted side of the firewall but they are still allowed by the firewall to access the data. IPSec is a connection of security protocols that are most commonly used for LAN-to- LAN VPN’S. Thus they provide a robust set of varying encryption and authentication protocols.
Remote workers usually prefer to connect to remote VPN’s. VPN connectivity provides temporary or ‘dial-in’ connections. Microsoft Windows now comes endowed with PPTP built encryption protocols which provides an easy method for rolling out. However, the PPTP technology relies on a weak encryption protocol.
Aside from providing access to remote workers, VPN connectivity is also used to mask a host’s true identity.
Although it presents a security concern since VPN can be used as an encrypted tunnel tunnel to transport classified data off a corporate LAN.
The boom in the networking trend is obvious as it is now necessary for the operators to create an IP- based network to carry all kinds of services. VPN is a mature technology that is getting better and better with each passing day showing immensely positive signs of growth. As most of the systems used in VPN connectivity are being now fixed into an autonomous system, there has been a phenomenal increase in the distribution of this networking technology which proves its viability in many carrier networks. All such services such as the VPN private line and voice operator for most businesses however needs to crosses several auxiliary systems. Thus a VPN connectivity crosses multiple settlement systems which is considered a major concern in current databases.
