IPV4는 특정 CIDR 주소에 대한 정보를 볼 수 있습니다.
IPV4 allow you to enter a Classless Inter-Domain Routing address and see information about that IP address such as the network address, the broadcast address, or the range of usable IP addresses for that network address. IPV4 VLSM is a useful tool for service providers and network operator who frequently allocate and work with subnets.