The IPv4 network range to allow or deny, in CIDR notation. For example, 172.16.0.0/24. We modify the specified CIDR block to its canonical form. For example, if you specify 100.68.0.18/18, we modify it to 100.68.0.0/18.
172.16.0.0/24
100.68.0.18/18
100.68.0.0/18