On Wed, Jun 21, 2000 at 04:01:37PM +0000, Hendrie Gunawan wrote: > hi.. i'm new at DNS, and i wanna ask the differences between : > > 128-25.25.XXX.XXX.in-addr.arpa. > and > 224-128.25.XXX.XXX.in-addr.arpa. There is none. Personal preference. You are absolutely free (in RFC bounds) how you name your CIDR-style reverse delegated zones. Best regards, Daniel