→ Canvas link to HW 14

Reading

Introduction to Firewalls, Network Lessons.com (Cisco ASA Firewall)

BeyondCorp: A New Approach to Enterprise Security

Ross Anderson, Defense Against Network Attack, Security Engineering, 3rd ed. 21.4 Defense Against Network Attack, pages 650–658 (Note that the discussion of circuit gateways is a basic form of stateful firewalls).

Steve Friedl, An Illustrated Guide to IPsec, Unixwiz.net

For more info (optional):

Stephen Northcutt, Lenny Zeltser, Scott Winters, Karen Kent, Ronald W. Ritchey, Statefull Firewalls, Inside Network Perimeter Security, 2nd Edition, Sams Publishing, 2005

IPsec, NetworkLessons.com (Cisco CCIE Routing & Switching) IPsec, Wikipedia article.