This read-only enumeration classifies the kind of IP address represented by a row in the ClearTrac7 address table, with values such as global, wan, lan, or proxy; the underlying source description is empty, so the meaning comes from the enumeration labels themselves. An administrator uses this to understand the purpose of each address returned by ipaddrAddr without having to guess from context. For example, seeing type wan(2) on a given row tells the admin that particular address is used on a wide-area link rather than the local LAN.