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Enhanced DHCP method

  • US 9,537,818 B2
  • Filed: 05/14/2014
  • Issued: 01/03/2017
  • Est. Priority Date: 05/15/2013
  • Status: Active Grant
First Claim
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1. A method, adopted by a slave device connected to a host device, comprising:

  • receiving, by the slave device, a DHCP discover message from the host device;

    queuing, by the slave device, the DHCP discover message until the slave device establishes a first network link with a network;

    transmitting, by the slave device, a DHCP offer message to the host device in response to the DHCP discover message upon the establishment of the first network link, wherein the DHCP offer message comprises a DHCP renewal time configuration;

    receiving, by the slave device, a first DHCP request message from the host device; and

    transmitting, by the slave device, a DHCP acknowledgement message in response to the first DHCP request message, wherein the DHCP acknowledgement message comprises a client Internet Protocol (IP) address and the DHCP renewal time configuration to the host device,wherein the method further comprising;

    establishing, by the slave device, a second network link with the network when the first network link is disconnected;

    queuing, by the slave device, a second DHCP request message until the slave device establishes the second network link with the network when the first network link is disconnected, andtransmitting a second DHCP acknowledgement message to the host device upon the establishment of the second network link.

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