VPNs: Choosing a Solution

As you saw in the section, “VPN Implementations,” there are actually quite a few VPN solutions to choose from. You should use several criteria in selecting the correct VPN solution for your company’s network. It might involve more than one solution, like IPsec and SSL, or IPsec and L2TP/IPsec.

To simplify this process, I evaluate the following criteria when choosing a VPN solution:

  • Security

  • Implementation, management, and support

  • High availability

  • Scalability and flexibility

  • Cost

The following sections will cover these criteria in more depth.


One of the first things I consider with a VPN solution is security. Toward that end, I ask the following questions:

  • What do I need to protect?

  • What kind of protection is required? ...

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