Hi Julian, I am sure missing something but did you not write: - Added dependency on Net::CIDR module so could add support for more ways of specifying IP ranges in rulesets. Can now do all of: 152.78. /^152\.78/ 152.78.0.0/16 152.78.0.0-152.78.255.255 And 152.78.0.0/16 is CIDR after all.... Regards, JP