[This document describes a field in the Princeton University Host Database. You may also view descriptions of other fields.]
The official name of the IP subnet corresponding to the IP address assigned to this device (if an IP address has already been assigned to this device). This is the device's "home network."
For devices with multiple interfaces, this field may appear once for each interface that has been assigned an IP address.
This field is informational only; it is derived by the Host Database based upon the IP address that has been assigned to this device.
You can use this information to lookup the Host Database entry for the subnet itself, and view subnet-specific information (e.g. subnet mask, default IP router(s), default DNS server(s))