Cisco ASA: All-in-One Firewall, IPS, Anti-X, and VPN Adaptive Security Appliance, Second Edition

Chapter 4. Controlling Network Access

This chapter covers the following topics:

• Packet filtering

• Configuring traffic filtering

• Advanced ACL features

• Content and URL filtering

• Deployment scenarios using access control lists

• Monitoring network access control

• Address translation

• DNS doctoring

• Monitoring address translations

Cisco Adaptive Security Appliances (ASA) can act as a network firewall and can help protect one or more networks from intruders and attackers. You can control and monitor connections between these networks by using the robust features that Cisco ASA offers. You can ensure that all traffic from the protected networks to the unprotected networks (and vice versa) passes through the firewall based on the organization’s ...