Environment
Novell ZENworks 10 Configuration Management with Support Pack 3 - 10.3
Situation
Dynamic Group Filters CIDR use doesn't work
Unable to defind a subnet or range of ip addresses such as 172.28.96.0/25 using CIDR notation.
Resolution
This is fixed in version 10.3.2 - see KB 7007237 "ZENworks Configuration Management 10.3.2 - update information and list of fixes" which can be found at Novell Support