Cisco ACE GSS 4400 Series Global Site Selector Appliances

Field Notice: The Initial Maintenance Version of Global Site Selector (GSS) Software Version 1.2.2 Has a Serious Defect and Has Been Replaced on

April 26, 2005

Products Affected

  • GSS - GSS-4480-K9

  • GSS - GSS-4490-K9

  • GSS - GSS-4491-K9

Note: Only GSSs running 1.2(2.0.2) are affected.

Problem Description

DNS query processing in the the Global Site Selector (GSS) Maintentance Software Version 1.2(2.0.2) is case sensitive and therefore does not respond to all of the requests that it should for a configured domain.


A fix for a defect CSCec67129 (registered customers only) for regular expressions caused the GSS domain list to become case sensitive for all DNS queries in version 1.2(2.0.2). This version has been removed from and is being replaced with 1.2(2.0.3).

Problem Symptoms

If 1.2(2.0.2) is deployed, the configuration is case sensitive which will cause domain misses for domains that should be included. For instance, if is configured but the request comes in with WWW.CISCO.COM, it will not match.


GSS Software Version 1.2(2.0.2) was only posted on from April 15, 2005 to April 24, 2005.

Cisco recommends that GSS Version 1.2(2.0.2) not be used. The software has been removed from and the replacement software image gss- (registered customers only) has been added to the Software Center.

The show version command will only display 1.2.2, in order to determine if your system is running the version of software with the defect, you will need to issue the following command: version verbose | grep "Version" .

Version 1.2(2) 
Full Version: 1.2(2.0.2)

If "Full Version: 1.2(2.0.2)" is displayed, then the GSS should be upgraded.


To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.



CSCeh71834 (registered customers only)

DNS query processing for domains should be case-insensitive.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

Receive Email Notification For New Field Notices

Product Alert Tool - Set up a profile to receive email updates about reliability, safety, network security, and end-of-sale issues for the Cisco products you specify.