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Cisco IronPort AsyncOS 7.7.5 for Web User Guide
Chapter 21      L4 Traffic Monitor
Viewing L4 Traffic Monitor Activity
Monitoring Activity and Viewing Summary Statistics
The Reporting > L4 Traffic Monitor page provides statistical summaries of monitoring activity. You can 
interactively update these displays by specifying a time range of hour, day, week or month. Additionally, 
you have the option to print these display pages and export the raw data to a file.
You can use the following displays and reporting tools to view the results of L4 Traffic Monitor activity:
Note
If the Web Proxy is configured as a forward proxy and L4 Traffic Monitor is set to monitor all ports, the 
IP address of the proxy’s data port is recorded and displayed as a client IP address in the client activity 
report on the Reporting > Client Activity page. If the Web Proxy is configured as a transparent proxy, 
enable IP spoofing to correctly record and display the client IP addresses.
L4 Traffic Monitor Log File Entries
The L4 Traffic Monitor log file provides a detailed record of monitoring activity. For more information 
about the L4 Traffic Monitor log, see 
.
Table 21-2
L4 Traffic Monitor Scanning Data
To view...
See...
Client statistics
Reporting > Client Activity 
Malware statistics
Port statistics
Reporting > L4 Traffic Monitor
L4 Traffic Monitor log files
System Administration > Log Subscriptions
  •
trafmon_errlogs
  •
trafmonlogs