Chapter Summary

This chapter discussed what a VPN is and the many benefits that it brings to networks everywhere. The most popular benefit of implementing VPNs is the cost reduction and overall financial savings. The reduction of bandwidth costs has made VPNs one of the best solutions available.

This chapter focused on the best available VPNs: IPsec and SSL/AnyConnect. To understand how they protect your data, the chapter examined all those different levels, phases, and types of processes involved in getting your data packets encrypted into your IPsec-based VPNs. This was a truly amazing task because the subject matter gets complicated quickly. If you are a bit confused, that is understandable; this is a complicated chapter and worth a second read through.