Monitor unlimited number of servers
Filter log events
Create email and web-based reports

Direct access to Microsoft articles
Customized keywords for major search engines
Access to premium content

Event ID: 23501 Source: MicrosoftFirewall

Level
Description
Writing to the log took approximately 74 seconds. If this time exceeds 30 seconds logging may fail and ISA Server may go into lockdown mode. For more information see Microsoft article 919468 at the ISA Server Help and Support site (http://support.microsoft.com/ph/2108/).

For more information see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Comments
 
As the event description says, see ME919468 for methods to prevent ISA Server from enforcing the lockdown mode of operation.

Windows Event Log Analysis Splunk App

Build a great reporting interface using Splunk, one of the leaders in the Security Information and Event Management (SIEM) field, linking the collected Windows events to www.eventid.net.

Read more...

 

Cisco ASA Log Analyzer Splunk App

Obtain enhanced visibility into Cisco ASA firewall logs using the free Firegen for Cisco ASA Splunk App. Take advantage of dashboards built to optimize the threat analysis process.

Read more...