The packet-tracer command lets you do the following:
â¢Debug all packet drops in production network.
â¢Verify the configuration is working as intended.
â¢Show all rules applicable to a packet along with the CLI lines which caused the rule addition.
â¢Show a time line of packet changes in a data path.
â¢Inject tracer packets into the data path.
The packet-tracer command provides detailed information about the packets and how they are processed by the security appliance. In the instance that a command from the configuration did not cause the packet to drop, the packet-tracer command will provide information about the cause in an easily readable manner. For example if a packet was dropped because of an invalid header validation, a message is displayed that says, "packet dropped due to bad ip header (reason)."