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: 21173 Source: MicrosoftFirewall

Level
Description
ISA Server does not have the security permissions required to check user group membership. As a result, ISA Server is unable to evaluate rules that are applied to user sets that contain Windows users and groups.
ISA Server must have additional permissions in order to access user group information. This is controlled via the TokenGroupsGlobalAndUniversal security attribute.
On a Windows 2003 domain, add the ISA Server computer accounts to the Windows Authorization Access Group.
On a Windows 2000 domain, since the Windows Authorization Access Group does not exist you should create a domain local group for this purpose, and add the ISA Server computer accounts to that group. Allow this group to access the TokenGroupsGlobalAndUniversal attribute on user objects, on computer objects, and on iNetOrgPerson objects.
Comments
 
As per Microsoft: "On a Windows 2003 domain, add the ISA Server computer accounts to the Windows Authorization Access Group. On a Windows 2000 domain, since the Windows Authorization Access Group does not exist you should create a domain local group for this purpose, and add the ISA Server computer accounts to that group. Allow this group to access the TokenGroupsGlobalAndUniversal attribute on user objects, on computer objects, and on iNetOrgPerson objects".

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...