Cisco Cisco Secure Access Control System 5.1 Release Notes

 lists the updates to Release Notes for the Cisco Secure Access Control System 5.1.

CSCtd14560

GUI session gets logged out when launch monitoring.

Symptom: When you launch the Monitoring and Report Viewer, the GUI session gets logged off.

Conditions: This issue occurs when you log in to the ACS server after a session timeout and 
immediately launch the Monitoring & Report Viewer. 

Workaround: To overcome this issue:

Go to System Administration > Settings > Session > Session Idle Timeout.

Set the session timeout to a large number (in minutes).

CSCtd39360

Changing Identity from AD to Identity with wildcard, "System Failure” occurs.

Symptom: When trying to change Policy Identity Store to Identity Sequences, the following error 
appears:

This System Failure occurred: {0}. Your changes have not been saved. Click OK to return 

to the list page.

Conditions: This issue occurs when using Identity Sequences with wildcard.

Workaround: Create Identity Sequences without wildcard (such as &% ,.!+ -).

CSCtj81255 

Two MAC addresses detected on neighbooring switch of ACS 1121 Appliance.

Symptom: Two MAC addresses are detected on the switch interface connected to an ACS 1121 
Appliance although only one interface is connected on the ACS 1121 Server eth 0.

Conditions: Only one Ethernet interface, eth 0 is connected between ACS and Switch.

Workaround: Disable BMC (Baseboard Management Controller) feature using BIOS setup.

To help prevent a potential network security threat, Cisco strongly recommends 
physically disconnecting from the Cisco ISE console management port when you are not 
using it. For more details, see

 which 

applies to the Cisco ISE, Cisco NAC Appliance, and Cisco Secure ACS hardware 
platforms. 

CSCua99537

Network Time Protocol Daemon (NTPD) running with ACS, sometimes, does not synchronize its 
clock with the windows time service. 

Symptom: When AD domain is used as a NTP server, the clcok on ACS and AD does not 
synchronize with the windows time service. 

Conditions: This problem occurs often when ACS or AD is running as a virutal machine. 

Workaround: None.