Cisco ASA and PIX Firewall Handbook > Security Appliance Logging Messages

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This Book

Cisco ASA and PIX Firewall Handbook

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About the Author

About the Technical Reviewers

Acknowledgments

Icons Used in This Book

Command Syntax Conventions

Foreword

Introduction

Ch. 1. Firewall Overview

Ch. 2. Configuration Fundamentals

Ch. 3. Building Connectivity

Ch. 4. Firewall Management

Ch. 5. Managing Firewall Users

Ch. 6. Controlling Access Through the Firewall

Ch. 7. Increasing Firewall Availability with Failover

Ch. 8. Firewall Load Balancing

Ch. 9. Firewall Logging

Ch. 10. Verifying Firewall Operation

Ch. 11. Cisco IOS Firewall: Controlling Access

Ch. 12. Cisco IOS Firewall: Managing Activity

Ch. 13. Intrusion Detection System (IDS) Sensors

Appendix A: Well-Known Protocol and Port Numbers

Appendix B: Security Appliance Logging Messages

Alerts—Syslog Severity Level 1 Messages

Critical—Syslog Severity Level 2 Messages

Errors—Syslog Severity Level 3 Messages

Warnings—Syslog Severity Level 4 Messages

Notifications—Syslog Severity Level 5 Messages

Informational—Syslog Severity Level 6 Messages

B-7: Debugging—Syslog Severity Level 7 Messages

Index

Appendix B. Security Appliance Logging Messages

This appendix covers all the possible messages a firewall can generate. It can serve as a quick reference so that you can look up messages that are associated with the different severity levels.

Cisco firewall logging messages are listed in this section grouped according to their default severity level (1 to 7):

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