An Illustrated Guide to IPsec by Steve Friedl

By stretch | Friday, June 13, 2008 at 1:10 a.m. UTC

To say IPsec is a complex technology is an understatement. ESP versus AH, tunnel mode versus transport, 3DES, AES, MD5, SHA -- there are quite a few pieces to the puzzle. It's taken me a while to get comfortable with IPsec in the Cisco world. Obviously studying for the ISCW furthered my knowledge considerably, but I owe a lot to Steve Friedl's Illustrated Guide to IPsec for laying the first foundations.

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The author does an excellent job laying out the framework components and the advantages and drawbacks of varying implementations. Packet headers are illustrated in a very intuitive manner, demonstrating how the encapsulations work together to provide data authentication and encryption. Even if you're already well versed in IPsec theory, the guide provides a happily succinct overview of what can be a very daunting technology.

About the Author

Jeremy Stretch is a network engineer living in the Raleigh-Durham, North Carolina area. He is known for his blog and cheat sheets here at Packet Life. You can reach him by email or follow him on Twitter.

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Comments


Kevin Gillick (guest)
June 23, 2008 at 12:56 p.m. UTC

Very nicely written!

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