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Cisco ASA Series Configuration Guide

Cisco ASA Series
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CHAPTER
1-1
Cisco ASA Series Firewall CLI Configuration Guide
1
Introduction to Cisco ASA Firewall Services
First Published: March 23, 2015
Last Updated: April 7, 2015
Firewall services are those ASA features that are focused on controlling access to the network, including
services that block traffic and services that enable traffic flow between internal and external networks.
These services include those that protect the network against threats, such as Denial of Service (DoS)
and other attacks.
The following topics provide an overview of firewall services.
• How to Implement Firewall Services, page 1-1
• Basic Access Control, page 1-2
• Application Filtering, page 1-2
• URL Filtering, page 1-3
• Threat Protection, page 1-3
• Network Address Translation, page 1-4
• Application Inspection, page 1-5
• Use Case: Expose a Server to the Public, page 1-5
How to Implement Firewall Services
The following procedure provides a general sequence for implementing firewall services. However, each
step is optional, needed only if you want to provide the service to your network.
Before You Begin
Configure the ASA according to the general operations configuration guide, including at minimum basic
settings, interface configuration, routing, and management access.
Procedure
Step 1 Implement access control for the network. See Basic Access Control, page 1-2.
Step 2 Implement application filtering. See Application Filtering, page 1-2.
Step 3 Implement URL filtering. See URL Filtering, page 1-3.
Step 4 Implement threat protection. See Threat Protection, page 1-3.

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Cisco ASA Series Specifications

General IconGeneral
ModelASA 5505
InterfacesVaries by model (Fast Ethernet, Gigabit Ethernet, 10 Gigabit Ethernet, etc.)
High AvailabilityActive/Standby or Active/Active (varies by model)
Power SupplyVaries by model
Form FactorVaries by model
Operating SystemCisco ASA Software
IPsec VPNSupported
SSL VPNSupported
IPS ThroughputVaries by model

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