Cisco ASA 5505 - Manual (Page 1857)

C H A P T E R
82-1
Cisco ASA 5500 Series Configuration Guide using the CLI
82
Troubleshooting
This chapter describes how to troubleshoot the ASA and includes the following sections:
• Testing Your Configuration, page 82-1
• Reloading the ASA, page 82-8
• Performing Password Recovery, page 82-8
• Using the ROM Monitor to Load a Software Image, page 82-11
• Erasing the Flash File System, page 82-12
• Other Troubleshooting Tools, page 82-13
• Common Problems, page 82-14
Testing Your Configuration
This section describes how to test connectivity for the single mode ASA or for each security context,
how to ping the ASA interfaces, and how to allow hosts on one interface to ping through to hosts on
another interface.
We recommend that you only enable pinging and debugging messages during troubleshooting. When
you are done testing the ASA, follow the steps in the
“Disabling the Test Configuration” section on
page 82-7 .
This section includes the following topics:
• Enabling ICMP Debugging Messages and Syslog Messages, page 82-2
• Pinging ASA Interfaces, page 82-3
• Passing Traffic Through the ASA, page 82-5
• Disabling the Test Configuration, page 82-7
• Determining Packet Routing with Traceroute, page 82-7
• Tracing Packets with Packet Tracer, page 82-7
• Handling TCP Packet Loss, page 82-8