Summary:  How to create a smart label for IP range using webex.  The smart filter sometimes errors out with long strings and following this article will help you in the creation of this smart label.

Steps to resolve:

1.  Use this URL and fill in the IP address and build the expression automatically in the expression builder: How do I exclude traffic from a range of IP addresses? 

REGEX Expression: ^192\.168\.2\.([2-9]|[1-9][0-9]|100)$

2.  Create the smart label with IP address  Matches Regex  TEST and then save the label.  

3.  Then go the SQL of the label TEST and replace with the REGEX expression from the tool above.