Alternatively, the tunnel can link a branch office network and a home network. In either case, the tunnels are not permanent, dedicated lines but networks created on demand over the Internet. Differing Abilities in VPN Solutions There are various solutions for creating VPNs, but they are not created equal.
Authentication ensures users are legitimate.
Encryption scrambles all data before transmission. Policy-based filtering, a form of packet filtering, controls access to designated sites or services on the enterprise network. You will immediately find yourself facing a choice between two kinds of VPNs that differ in the degree to which they outsource. The list of advantages and disadvantages that follows will help you determine which system fits your needs. But it may help to read through the entire checklist before making that assessment.