Methods of detecting and assigning IP addresses to devices with ARP requests
First Claim
1. A method of assigning an IP address in a network, the method being implemented by a discoverer node, the method comprising:
- selecting an IP address, at the time of selection the IP address being unused in the network;
transmitting a plurality of address resolution protocol (ARP) requests associated with the IP address;
receiving an ARP message associated with the IP address, the ARP message having been transmitted by a detected device responsive to the detected device receiving all of the plurality of ARP requests;
transmitting a user datagram protocol (UDP) packet addressed to the detected device; and
receiving a UDP reply, the UDP reply having been transmitted by the detected device, the IP address then being assigned to the detected device.
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Accused Products
Abstract
A method of discovering and assigning an IP address to a device to be discovered in a communication network having multiple interconnected nodes includes continuously monitoring, by the device to be discovered, the network for address resolution protocol (ARP) requests. The discoverer node transmits a number of ARP request to the network. The device to be discovered receives the number of ARP requests. The device to be discovered determines whether the number of ARP requests are unanswered by other devices in the network. The device to be discovered answers to the number of ARP requests with an ARP reply to claim an IP address associated with the number of ARP requests. The discoverer node and the device to be discovered exchange a pair of User Datagram Protocol (UDP) packets to complete the detection process.
63 Citations
14 Claims
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1. A method of assigning an IP address in a network, the method being implemented by a discoverer node, the method comprising:
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selecting an IP address, at the time of selection the IP address being unused in the network; transmitting a plurality of address resolution protocol (ARP) requests associated with the IP address; receiving an ARP message associated with the IP address, the ARP message having been transmitted by a detected device responsive to the detected device receiving all of the plurality of ARP requests; transmitting a user datagram protocol (UDP) packet addressed to the detected device; and receiving a UDP reply, the UDP reply having been transmitted by the detected device, the IP address then being assigned to the detected device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of assigning an IP address in a network, the method being implemented by a detected node, the method comprising:
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monitoring the network for a first address resolution protocol (ARP) request; receiving a predetermined number of ARP requests, the ARP requests being transmitted by a discoverer node in the network, the ARP requests associated with an IP address, the IP address being unused in the network; claiming the IP address and transmitting an ARP reply associated with the IP address responsive to receiving all of the predetermined number of ARP requests; receiving a user datagram protocol (UDP) packet, the UDP packet addressed to the IP address; and transmitting a UDP reply to the discoverer node, the IP address then being assigned to the detected node. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification