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  4. APIs
  5. Querying IP Address Usage
  6. IP Address Usage Query API Overview

IP Address Usage Query API Overview

This section describes how to query IP address usage on a network, including the total number of IP addresses on a network, the number of in-use IP addresses on the network, the total number of IP addresses on a subnet, and the number of in-use IP addresses on the subnet.

  • The first and last four IP addresses on each subnet are reserved by the system for the gateway and DHCP service.
  • The total number of IP addresses and the number of in-use IP addresses described in this section and the subsequent sections do not include the IP addresses reserved by the system.
  • When assigning an IP address, you can specify the reserved IP address for the system. The system reserved IP address will not be included in the number of in-use IP addresses and the total number of IP addresses no matter how the IP address is assigned.