A first Internet protocol version 6 (IPv6) address of a particular computing device within a network is identified using a first passive discovery sensor performing a first discovery task. A second discovery task is caused to be performed using the first IPv6 address and an attribute of the particular computing device is identified from results of the second discovery task. The first IPv6 address and attribute of the particular device is added to a repository maintaining a record of detected IPv6 addresses within the network. In some instances, a first passive discovery sensor can be one of an event-based discovery sensor, a latent-type discovery sensor, and an indirect-type discovery sensor.