November 2005
Intermediate to advanced
1152 pages
29h 9m
English
Content preview from Cisco Network Security Troubleshooting HandbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 4. Troubleshooting Firewall Services Module
Firewall Services Module (FWSM) is designed and implemented based on the PIX Firewall code; hence most of the troubleshooting techniques shown in Chapter 3, “Troubleshooting Cisco Secure PIX Firewalls” also apply to FWSM, with a few exceptions. However, as the FWSM module interoperates with the switch, the packet flows from point A to point B through the FWSM are more complex than that of the PIX/ASA platform because of its complex architecture. To troubleshoot issues with FWSM, you must understand FWSM architecture. This will help you to understand FWSM packet flows. So this chapter starts with a discussion of FWSM Architecture, which leads to a discussion of packet flows through the FWSM. Then ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.