As businesses continue to look for ways to expand their network capacity while reducing their ongoing expenses, they turn to VPNs, or virtual private networks. Many homes and workplaces see the benefits of using VPNs with their ability to provide a safe logon over the Internet, into company networks. Many individuals that telecommute find that using virtual private networks is an extremely convenient way to remain connected to the company’s intranet while at home, or traveling.
Defining a VPN:
A virtual private network (VPN) provides instant network connectivity over extremely long distances including to and from the other side of the world. Considered a form of WAN (wide area network), VPN’s were developed to utilize public networks, including the Internet, instead of needing to use the services of a private leased line. Virtual private network technology fully utilizes networks that have restricted access. The VPN will use the same routers and cabling as the Internet, without the need to sacrifice any basic security or features.
Companies use a VPN service to provide support for their intranet in one or all of three specific modes that include:
- Intranet – controlled access
- Inter-networking – LAN to LAN
- Client connections through remote access
Cost Savings :
A virtual private network service can provide substantial cost savings to an organization that include:
- The reduction or elimination of long-distance telephone costs
- The ability to offload traditional support expenses
- The elimination of high-cost leased lines
Leased Line vs. VPN:
Many companies traditionally rented network capacity through leased lines including T-1 lines to control and maintain secured full connectivity between remote locations. Alternatively, businesses can now use virtual private networks to gain the same features at significantly lower costs. Using public network infrastructures, such as the Internet, businesses can easily make connections through their Internet service provider (ISP).
Scalability:
Companies that experienced increased business, or have seasonal fluctuations, require scalability to deal with their expanding growth. As a result, they turn to Internet-based virtual private networks, because it eliminates any scalability issues while still providing a high level of quality service. VPNs offer great flexibility without the need to purchase additional equipment.
As more companies realize the benefits of using virtual private networks, compatibility issues between vendors, customers, suppliers and others will begin to minimize. In spite of that, the performance and reliability of using an Internet-based VPN, makes it a wise choice for companies wishing to do private business over public lines.
