IPv4 Zone Network Address

If you are using IPv4, obtain an address and assign the address to the zone.

A prefix length can also be specified with the IP address. The format of this prefix is address/prefix-length, for example, 192.168.1.1/24. Thus, the address to use is 192.168.1.1 and the netmask to use is 255.255.255.0, or the mask where the first 24 bits are 1-bits.