This allows your business system and other resources at your office to be available in another office or warehouse environment. That is, users in the other office or warehouse can communicate with the system as if they were local to the system. They can have access to the business system and exchange E-mail as if they were sitting right next to you. The new millennium and the use of the Internet are allowing us to solve this same problem of communication between remote sites in another way. This means that once the VPN is setup and running, the monthly cost of the WAN goes away.
Remote personnel can also use VPNs to manage dial-in connectivity.
Traditionally, companies have used modems to allow users access to the business systems in place. However, as most of you are finding out, the cost of a dial-up phone line is not cheap especially over long distances. Therefore, many companies that have personnel working outside the building would rather have the users access the system via each remote users Internet connection. By using VPN, these users can have access to the system. Once setup, the only cost of the connection is the remote users connection to the Internet.