IPSec Document.

Netstudent

Here is a good IPSec read for IPSec newbs in case anyone is interested. It's not terribly technical so it is easy to understand. Took me about an hour to get half way through it with full comprehension.

http://csrc.nist.gov/publications/nistpubs/800-77/sp800-77.pdf

Yossarian

Thanks for the link. It improved my understanding of IPSec. I would definitely recommend it to others.