VPN+Technology


 * VPNs Technology**

In addition to the VPN services discussed previously, there is a collection of technology components, both hardware and software, emerging to provide greater privacy over unsecured and public networks. These technologies primarily apply to IP-based networks but in some cases have extended to Apple Computer networks (based on AppleTalk communications protocols), Novell's Internet packet Exchange protocols (IPX) and Network Basic Input/output System (NetBIOS) Extended User interface (NetBEUI). Virtual Private Networking technologies are implemented at the network level and typically provide **tunneling**, **encryption**, **security key exchange** and **authentication services**. Before proceeding it is important to have a good understanding of what these technologies provide.

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