Efficient use of dynamic host configuration protocol in low power and lossy networks

摘要

In one embodiment, each of a plurality of devices in a computer network is configured to i) transmit a unicasted dynamic host configuration protocol (DHCP) solicit message to a neighbor device having a route to a border router as an assumed DHCP relay without regard to location of a DHCP server, and ii) operate as a DHCP relay to receive unicasted DHCP solicit messages and relay the solicit message to the border router of the network without regard to location of the DHCP server, and to relay a DHCP reply to a corresponding requestor device.

主权项

1. A method, comprising:
receiving, at a device, an advertisement for a route from a neighbor device to a border router of a computer network; transmitting, by the device, a unicasted dynamic host configuration protocol (DHCP) solicit message to the neighbor device, wherein the neighbor device relays the unicast DHCP solicit message to the border router as an assumed DHCP relay without regard to location of a DHCP server; and receiving, at the device, a relayed DHCP reply from the neighbor device, wherein the border router is a root node of a directed acyclic graph (DAG).