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Q&A: Can we add subnets with CIDR format to the iRules data tables?

Question

  • Can we add subnets with CIDR format to the iRules data tables?

 

Environment

  • WAF
  • iRules
  • data-tables

 

Answer

  • Yes, you can add subnets in this format like e.g  X.X.X.X/Y

    class match works:
  • class match [<options>] <item> <operator> <class>

 

class match

class match [<options>] <item> <operator> <class>
  • class match attempts to match the provided <item> to an element in <class> by applying the <operator> to the <item>. The return value depends on the option specified. If no option was specified, the return value is 1 for a match and 0 for a no-match. See discussion below regarding options.
  • This command form is equivalent to the obsolete iRule command:

    • matchclass <item> <operator> <class>
      
  • Example:

    • class match [HTTP::uri] ends_with image_class
      
    • read as, does the URI end with an element from image_class.

  • Example:

    • class match [IP::client_addr] equals client_ip_class
      
    • read as, does the client IP address exist in the client_ip_class.

 

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