Recommended Reading

Chandra Kopparapu , Load Balancing Servers, Firewalls, and Caches. Cisco Press, 2002

RFC 2402. "IP Authentication Header, IETF." http://www.ietf.org/rfc/rfc2402.txt, 1998

RFC 2406. "IP Encapsulating Security Payload (ESP)." IETF, http://www.ietf.org/rfc/rfc2406.txt, 1998

RFC 2409. "The Internet Key Exchange (IKE)." IETF, http://www.ietf.org/rfc/rfc2409.txt, 1998