I just fixed a problem in my php code, which will make the search for "prefix" work right. Searching for "10.10%" will not return an IP like "172.16.10.10" anymore. Going to try and work on a search based on real CIDR, so that you can enter "172.16.0.0/16". -- Regards, Ulf. --------------------------------------------------------------------- Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-865-0204