Cisco ASA Firewall basics
This is an introductionary course to the Cisco ASA firewall.
In the course you will learn everything needed to install and configure a brand new Cisco ASA firewall with outbound internet access.
You will learn all commands needed to install the firewall.
This is a course where you will learn about the commands (CLI) used to setup and manage the firewall.
If you have never worked with the ASA before, or if you have only been administering the firewall via ASDM, this is the course for you!
In the first part of the course You will understand which required building blocks there are to get the firewall installed. For each step I will explain the reason, how it works and that there is to think about when configuring the Cisco ASA. This includes:
- Console access
- Interface configurations
- Access-list theory and how to apply them.
- Restricting and providing management access.
- Network Address Translation (NAT)
- DHCP in the Cisco ASA
- Available hardware models.
- Security levels.
In the second part of the course we will together configure a Cisco ASA 5505 from no configuration at all to outbound filtered and NAT:ed internet-access with DHCP and access-lists.
By the end of this course you will have a full knowledge of the different building blocks required to install a Cisco firewall.
Course length: 2h (equal to 6-8 hours of classroom training)
Your Instructor

I have been working in IT since 1991. My focus the last 15 years has been in Routing&Switching and Security. I have certifications in Cisco (CCNA, CCNP, CCSP) since 2000, also certified Checkpoing CCSA/CCSP and ISC2 CISSP. After 20+ years as an IT consultant I have a broad as well as deep knowledge in TCP/IP, routing, switching and firewalling.
Course Curriculum
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StartConfiguring the firewall interfaces (5:44)
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StartThe ASA 5505 switchports - an exception (3:14)
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PreviewSecurity Levels - a must even today (2:57)
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StartSame security level (4:24)
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StartThe course lab environment being used in this course (4:37)
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StartImplement ACL:s - Part 1 (4:32)
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StartImplement ACL:s - Part 2 (5:35)
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StartAn introduction to NAT (7:58)
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StartICMP State? - Fixup protocol ICMP (3:59)
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StartManagement access - Part 1 (6:41)
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StartManagement access - Part 2 (6:11)
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StartThe DHCP server built-in inside the ASA (3:23)