The growing popularity of Internet in the last few decades has been instrumental in mobilizing wide-scale e-businesses and Internet driven personal lives characterized by emails, blogs, text messages etc. The underlying concept that powers the Internet is the WAN. A Wide Area Network (WAN) is a global concept that has gained prominence due to its inherent capacity to span a broad geographic area, enabling transmission of data through telecommunication carrier devices. The most common communication links include telephone lines, fiber optic lines, wireless, microwave links, and satellite channels. A WAN is the core element around which, today’s businesses revolve, in order to ensure business continuity.
Compared to single utility functions, converged technology solutions or devices provide better functionality and added features. A WAN VPN is one such aggregated concept, which has as its primary aim, the task of providing a faster, secure, and reliable network connection. It gains importance in this information age as crucial data is constantly being exchanged over the Internet. Virtual Private Network (VPN) is a network that uses the shared public telecommunication infrastructure to connect nodes and establish access at a secure level between the Internet and an organization’s internal network.
As a private network, VPN maintains privacy by using security procedures and tunneling protocols. Tunneling protocol is a network technology based on the tunneling concept, the constitution and sustenance of a logical network connection. The most widely used VPN tunneling protocols are Point-to-Point Tunneling Protocol (PPTP), Layer Two Tunneling Protocol (L2TP), and Internet Protocol Security (IPsec). VPNs support two types of tunneling, namely voluntary (where the VPN connection set up is managed by VPN client) and compulsory (where VPN connection set up is managed by network provider). A WAN is utilized as a medium to transmit data in an encrypted format, enabling only authorized users to have access to the secure data. Data is encrypted at the sending end and decrypted at the receiving end. The WAN VPN maintains security at all levels, even encrypting the originating and receiving network addresses. IPSec feature can be employed to facilitate data encryption across WAN Virtual Private Networks.
A WAN VPN utilizes a local connection to the Internet Service Provider (ISP), which is located nearby. It leverages local network connections through tunneling. The WAN VPN technology allows WANs to extend to remote locations by substantially securing network traffic. Generally, Virtual Private Networks employ WANs to link remote sites or users. WAN VPNs use virtual connections over a leased line, to route data from an intranet to a remote site through the Internet.
Conventionally, WAN links necessitated point-to-point circuits for establishing connectivity. A WAN VPN only needs a local connection to the closest Internet Service Provider (ISP) point of presence (POP).The VPN connection is then carried forward to the other end point through the WAN infrastructure. These kind of site-to-site encrypted WAN VPNs ascertain private communications between trusted sites, rendering multiprotocol support, high level of reliability, and extensive scalability. Stable and optimized WAN VPN performance secures data transfer and thereby enhances the smooth flow of business operations for enterprises. An added advantage is that site-to-site encrypted WAN VPNs are cost effective and flexible.
A WAN VPN improves security of data transmission. However, there are certain connectivity issues that can be resolved by using technology solutions such as those provided by the router clustering technology innovator FatPipe Networks. Large enterprises that are keen on meeting business continuity goals employ FatPipe’s technology devices, which offer the highest level of WAN reliability and integrity. FatPipe technology allows for multiple connections for WANs regardless of the type of connection or the provider.
FatPipe offers an enhanced suite of technology solutions, which includes security features. Its patented MPVPN technology provides reliable, redundant and secure WAN data transmissions for CPE based VPNs. A robust WAN is the keystone that enables business continuity.