1. A locator/identifier separation network, comprising: a supervision center sending identity information of a monitored to an authentication center, querying and obtaining an identity identifier of the monitored; the supervision center obtaining a location identifier of the monitored according to the identity identifier of the monitored; the supervision center sending a command of monitoring the identity identifier of the monitored to an edge router corresponding to the location identifier of the monitored; and the supervision center receiving a data packet containing the identity identifier of the monitored in address information mirrored by the edge router.