A solution to this problem may be in creating Virtual Private Networks - VPN. Special software is required for creating virtual private networks; one of such software is offered by INFOTECS. Their solution is promoted under the trademark of ViPNet (to be precise, there are two solutions - ViPNet OFFICE and ViPNet CUSTOM). The difference between them is in the second solution's capabilities to create custom networks of any scale. Let's first get ourselves acquainted with the differences and then review the VPN creation principles. The ViPNet CUSTOM solution utilizes ViPNet Administrator as its basic software; the other solution uses ViPNet Manager for that purpose. ViPNet Manager is the light version of the ViPNet Administrator software that provides simple, intuitive means for setting and modifying a protected ViPNet network structure.