Implementing IPsec: Making Security Work on VPNs, Intranets, and Extranets;
Elizabeth Kaufman and Andrew Newman; John Wiley & Sons, 1999.
Internet Cryptography; Richard E. Smith; Addison-Wesley, 1997:
Chapter 5: Security at the IP Layer
Chapter 7: Remote Access with IPSEC
Chapter 8: IPSEC and Firewalls
Internet Security Protocols: Protecting IP Traffic; Uyless Black; Prentice
Hall, 2000.
Internetworking with TCP/IP, Volume I: Principles, Protocols, and
Architecture, Fourth Edition; Douglas E. Comer; Prentice Hall, 2000
(Chapter 32: Internet Security and Firewall Design (IPSEC)).
IPSec: The New Security Standard for the Internet, Intranets, and Virtual
Private Networks; Naganand Doraswamy and Dan Harkins; Prentice Hall, 1999.
IPSec: Securing VPNs; Carlton R. Davis; Osborne/McGraw-Hill, 2001.
Network Security: Private Communication in a Public World, Second Edition;
Charlie Kaufman, Radia Perlman, and Mike Speciner; Prentice Hall, 2002:
Chapter 17: IPSec: AH and ESP
Chapter 18: IPsec: IKE
TCP/IP: Architecture, Protocols, and Implementation, Second Edition;
Sidnie Feit; McGraw-Hill, 1996 (Chapter 24: IP Security).