O'Reilly logo

CCIE Security Exam Quick Reference Sheets by Lancy Lobo, Umesh Lakshman

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 5. Cisco Security Appliances and Applications

Cisco Secure PIX Firewall and Cisco Adaptive Security Appliance Firewall

  • A PIX Firewall functions on a connection-based security policy, and logic is based on the Adaptive Security Algorithm (ASA). Every inbound packet is checked against the algorithm and against connection-state information in memory.
  • The PIX Firewall supports Network Address Translation (NAT) and Port Address Translation (PAT).
  • The outside interface on the PIX is untrusted, and the security level on that interface is set to 0; the inside, or trusted, interface is set to 100 by default.
  • nameif hardware_id if_name security_level vlan_id—Names the inside and outside interfaces and assigns the security levels (in global configuration ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required