Chapter 1 What’s New for FortiOS 5.2.1 : New features in FortiOS 5.2 Patch 1 : Add iprope check trace in flow trace
  
Add iprope check trace in flow trace
Previously flow trace shows only accepted or denied policy information. Sometimes, policy tracking is also important and knowing which policies are checked, and what is the result for the checking might be helpful.
Syntax
diagnose debug flow show iprope {enable|disable}
enable to enable trace iprope match.
disable to disable trace iprope match.