Device and method for using MAC address of networked devices to set IP addresses
First Claim
1. An IP address setting device:
- a request packet transmitting unit that transmits a request packet to a particular multicast address, the request packet requesting transmission of an MAC address from each node of the network;
a response reception unit that receives responses from the nodes to the request packet transmitted by the request packet transmitting unit, each response including the MAC address of the corresponding node;
an address information designation unit that, based on the responses received from the nodes by the response reception unit, designates a node to be set with address information including an IP address and that designates the address information; and
a setting packet transmission unit that transmits a setting packet to the particular multicast address, the setting packet including the address information set by the address information designation unit and the MAC address included in the response from the node.
1 Assignment
0 Petitions
Accused Products
Abstract
An IP address setting device includes a request packet transmitting unit, a response reception unit, an address information designation unit, and a setting packet transmission unit. The request packet transmitting unit transmits a request packet to a particular multicast address. The request packet requests transmission of an MAC address from each node of the network. The response reception unit receives responses from the nodes to the request packet transmitted by the request packet transmitting unit. Each response includes the MAC address of the corresponding node. Based on the responses received from the nodes by the response reception unit the address information designation unit designates a node to be set with address information including an IF address and designates the address information. The setting packet transmission unit transmits a setting packet to the particular multicast address. The setting packet includes the address information set by the address information designation unit and the MAC address included in the response from the node.
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Citations
8 Claims
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1. An IP address setting device:
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a request packet transmitting unit that transmits a request packet to a particular multicast address, the request packet requesting transmission of an MAC address from each node of the network;
a response reception unit that receives responses from the nodes to the request packet transmitted by the request packet transmitting unit, each response including the MAC address of the corresponding node;
an address information designation unit that, based on the responses received from the nodes by the response reception unit, designates a node to be set with address information including an IP address and that designates the address information; and
a setting packet transmission unit that transmits a setting packet to the particular multicast address, the setting packet including the address information set by the address information designation unit and the MAC address included in the response from the node. - View Dependent Claims (2, 3, 4, 5)
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6. An IP address setting method comprising:
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transmitting a request packet to a particular multicast address, the request packet including a request for an MAC address of each node of a network;
transmitting, from a node that is a member of the multicast address and that received the request packet, a response packet to the particular multicast address, the response packet including the MAC address of the node;
receiving the response packet;
designating to set the node that sent the response packet with address information including an IP address;
transmitting to the particular multicast address a setting packet including the designated address information and the MAC address indicated in the response packet from the node;
receiving the setting packet at the node;
judging whether the MAC address in the received setting packet is the same as the MAC address of the node; and
setting the address information in the setting packet as the address information of the node when the MAC address in the received setting packet is the same as the MAC address of the node. - View Dependent Claims (7)
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8. A network printer comprising;
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a request packet reception unit that receives a request packet from a particular multicast address, the request packet requesting transmission of an MAC address;
a response unit that transmits to the particular multicast address a response packet including a network printer MAC address;
a setting packet reception unit that receives a setting packet from the particular multicast address;
a content determination unit that determines whether the received setting packet includes the network printer MAC address; and
an IP address setting unit that, when the packet content determination unit determines that the received setting packet includes the network printer MAC address, sets the address information including the IP address in the setting packet as address information.
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Specification