[EMAIL PROTECTED] wrote: > If I'm not mistaken , you define it as 224.0.0.0 mask 224.0.0.0 > someone please validate this. > > -----Original Message----- > From: Luis Angel Fernandez Escabias [mailto:[EMAIL PROTECTED]] > Can I create an network object with the following format: 240.0.0.0/5 > instead of giving the IP and the netmask? I need do this because I dont know > how put this example (class e reservered net) with ip and mask. Thanks a > lot. Ouch! I guess I know what's the problem. What definition of "/" are you using? I know of two: 1.) counting the SET bits - then /5 equals the subnet mask 248.0.0.0 2.) counting the UNSET bits - resulting in a subnet mask of 255.255.255.224 Definition 1) is the more common one (as used in Cisco Routers IIRC). Bye Volker
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