Methods and systems for providing customizable network device management are disclosed. In one such method, a user-created policy is received and registered on a network device, such as a router. An event identified by the policy is detected at the network device. In response, the policy runs on the network device and an action specified by the policy is performed. The policy can be prepared by a user of a remote computing device, uploaded to the network device, and registered on the network device. In various implementations, the policy can be provided in the form of a script or applet executable by the network device.