What Are VPN Stand For?

VPN is the use of public networks to build private networks, which is specially designed hardware and software directly through the sharing of the IP network established to complete the tunnel. We usually WAN as a VPN solution, but it can also be used simply LAN. VPN similar to the dial-up connection or a direct point-to-point leased line connections, even though it is based on switching and routing of the way.

It can be said that, VPN is the Intranet (internal network) in an extension of the public network, which can provide the same private network security, manageability and transmission performance, and the construction, operation and maintenance of the network from internal IT sector stripped out by the operators to be responsible for.

VPN is based on the actual network (physical or network) on the basis of a functional network. It uses the network of public enterprises as the backbone of low-cost advantages of public networks at the same time overcome the lack of confidentiality of the weaknesses in the VPN network, the public network at both ends of the network in the public network to transmit information, information on its safety are dealt with , To ensure data integrity, authenticity and the private nature.

VPN is the network share to establish private network technology. The reason is called a virtual network as a whole mainly due to the VPN network between any two nodes do not have to connect the traditional network of professionals required for the construction of the physical point-to-point link, but in the framework of public network services provided by the ISP business The network platform of the logic of the network. User data through the ISP in the public network (Internet) to establish the logic of the tunnel (Tunnel), that is a virtual point-to-point line for the transmission. Through the encryption and authentication technologies to ensure user data in the internal network of public safety on-line transmission network in order to realize the proprietary nature.

VPN is a network of business on the Internet and other public network, an extension of it in the public network to create a secure private connection, so let's remote users, branch offices, business partners and so on with the company's corporate network linking a The expansion of the enterprise network.