Beginning of Essay
– A cost effective alternative The need for connectivity to the company network outside of the office has increased dramatically in the past several years. As telecommuting and integration of back offices due to the acquisition of other companies become st ....

Middle of Essay
.... This presents new and difficult problems for IT departments at companies of all sizes. How can an IT group build a scalable solution that is generic enough to solve all of these networking issues: access for mobile users, remote site connectivity, E commerce with trading partners and a solid internal structure that leverages investments in infrastructure. Use the Internet. By implementing a Virtual Private Network (), a remote user, site or trading partner can connect to another network through the existing Internet infrastructure. (Figure A) Using a combination of tunneling, encryption and access controls, VPNs allow users to connect s ....