Abstract: Power-over-Ethernet (PoE) powered devices (PD) may be coupled to a PoE power sourcing equipment (PSE). The PDs may send to the PSE a link-layer protocol communication that comprises an alternative-power field indicating whether the sending PD has an alternative power source (e.g., a battery, a local power supply). The PSE may listen for and receive the communications and read the alternative-power fields thereof. The PSE may set respective power priorities for the PDs based at least in part on whether the PDs have respective alternative power sources, as indicated by the respective alternative-power fields of their communications. The PSE may reduce the power priority of those PDs that have alternative power sources, relative to the priority the PD would otherwise have been given.

Abstract: Systems and methods for handling packets from a trusted network are provided. In some aspects, a system includes a communication module configured to receive a packet at a gateway from a server in a trusted network. The gateway is between the trusted network and a network external to the trusted network. The system also includes a verification module configured to determine whether the received packet is valid. The communication module is configured to route the received packet to a client in the external network if the received packet is determined to be valid. The communication module is configured to apply a corrective action to the received packet if the received packet is determined to be invalid.

Abstract: Systems and methods for handling packets from a trusted network are provided. In some aspects, a system includes a communication module configured to receive a packet at a gateway from a server in a trusted network. The gateway is between the trusted network and a network external to the trusted network. The system also includes a verification module configured to determine whether the received packet is valid. The communication module is configured to route the received packet to a client in the external network if the received packet is determined to be valid. The communication module is configured to apply a corrective action to the received packet if the received packet is determined to be invalid.

Abstract: A method includes detecting a presence of a device on a network associated with a node, where the node is not connected to an authentication server and is configured to communicate with the device using a data link layer authentication protocol; communicating, with another node, using a data link layer tunneling protocol, to authenticate the device as a result of detecting the presence of the device, where the other node communicates with the authentication server, using a network layer authentication protocol, that enables the other node to receive an authentication notification associated with the device; receiving, from the other node, the authentication notification that indicates that the device has been authenticated, where the authentication notification is received using the data link layer tunneling protocol; and sending, to the device, an indication that the device is authorized to communicate with the network, where the sending includes establishing an authentication session that enables the device