US 7,613,123 B2Granted

Apparatus and method for establishing network

AssigneeLG Electronics Inc.

InventorDang Woo Choi

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Abstract

Embodiments of a method and apparatus can establish a network using pre-set IP information when a host is coupled to a network. In an embodiment of a network establishment method, ARP response information can be compared with pre-stored set information using a predetermined calculation so to decide a set, an ARP can be broadcasted to determine whether the decided set is applicable to a network, and, if a response for one or more ARP is received, the decided set can be established as a network. In another embodiment of a network establishment method, an ARP can be broadcasted using pre-stored set information, and if a response for the ARP is received, a network can be established. According to embodiments of the invention, by applying an appropriate available setting among pre-set TCP/IP settings without manually establishing a TCP/IP connection, direct connection (e.g., Plug-and-Play) of a network can be performed.

Claims4

Dependent claims

A method of connecting a device to a network, comprising:

presetting a plurality of TCP/IP addresses in the device;
plugging the device into the network;
determining whether any of the preset TCP/IP addresses are usable on the network;
if the preset TCP/IP addresses are not usable, performing an address resolution protocol (ARP) request with at least one other device connected to the network or with another device having an address preset in the device;
receiving an ARP response to the ARP request from a correspondent device, the correspondent device corresponding to one of the at least one other device and the another device;
determining whether it is possible to access the network with a preset TCP/IP address having a predetermined relationship relative to a TCP/IP address included in the ARP response;
if access to the network is possible with the preset TCP/IP address having said predetermined relationship relative to a TCP/IP address included in the ARP response, establishing a network connection;
if access to the network is not possible with the preset TCP/IP address having said predetermined relationship relative to a TCP/IP address included in the ARP response, determining whether it is possible to access the network with another preset TCP/IP address;
if access to the network is possible with the another preset TCP/IP address, establishing the network connection;
and
if access to the network is not possible with any preset TCP/IP address, indicating that a network connection attempt has failed.

8 more elements

A method of establishing a connection of a device to a network, comprising:

presetting a plurality of TCP/IP addresses in the device;
plugging the device into the network;
determining whether the network is available to the device;
if the network is not available, determining whether an address resolution protocol (ARP) packet from other device already connected to the network has been received by the device;
if the ARP packet from the other device has been received by the device, determining whether a TCP/IP address within the received ARP packet falls within a range of preset TCP/IP addresses;
if the TCP/IP address within the received ARP packet falls within the range of preset TCP/IP addresses, establishing a detection priority order where a preset TCP/IP address closest to the TCP/IP address within the ARP packet is given a highest priority;
performing an ARP request process with at least one other device connected to the network or with another device with preset TCP/IP addresses in accordance with the detection priority order;
receiving an ARP response to the ARP request process from a correspondent device, the correspondent device corresponding to one of the at least one other device and the another device;
determining whether it is possible to access the network by the device with a preset TCP/IP address having a predetermined relationship relative to a TCP/IP address included in the ARP response;
if access to the network is possible with the preset TCP/IP address having said predetermined relationship relative to a TCP/IP address included in the ARP response, establishing a network connection;
if access to the network is not possible with the preset TCP/IP address having said predetermined relationship relative to a TCP/IP address included in the ARP response, determining whether it is possible to access the network with another preset TCP/IP address;
if access to the network is possible with the another preset TCP/IP address, establishing the network connection;
and
if access to the network is not possible with any preset TCP/IP address, indicating that a network connection attempt has failed.

11 more elements

A computer device comprising a processor and a memory, the memory encoded with instructions configured to cause the processor to execute a method of connecting a device to a network, the method comprising:

presetting a plurality of TCP/IP addresses in the device;
plugging the device into the network;
determining whether the network is available to the device;
if the network is not available, determining whether an address resolution protocol (ARP) packet from other device already connected to the network has been received by the device;
if the ARP packet from the other device has been received by the device, determining whether a TCP/IP address within the received ARP packet falls within a range of preset TCP/IP addresses;
if the TCP/IP address within the received ARP packet falls within the range of preset TCP/IP addresses, establishing a detection priority order where a preset TCP/IP address closest to the TCP/IP address within the ARP packet is given a highest priority;
performing an ARP request process with at least one other device connected to the network or with another device with preset TCP/IP addresses in accordance with the detection priority order;
receiving an ARP response to the ARP request process from a correspondent device, the correspondent device corresponding one of the at least one other device and the another device;
determining whether it is possible to access the network by the device with a preset TCP/IP address closest to a TCP/IP address included in the ARP response;
if access to the network is possible with the preset TCP/IP address closest to a TCP/IP address included in the ARP response, establishing a network connection;
if access to the network is not possible with the preset TCP/IP address closest to a TCP/IP address included in the ARP response, determining whether it is possible to access the network with another preset TCP/IP address;
if access to the network is possible with the another preset TCP/IP address, establishing the network connection;
and
if access to the network is not possible with any preset TCP/IP address, indicating that a network connection attempt has failed.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/252,826Filed 19 Oct 2005
Priority: KR 10-2005-004482227 May 2005
Published: US 2006/0268862 A130 Nov 2006
Granted: 3 Nov 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04L 61/00
Network arrangements, protocols or services for addressing or naming
H04L 41/0806
Configuration setting: for initial configuration or provisioning, e.g. plug-and-play
H04L 41/0879
Aspects of the degree of configuration automation: manual configuration through operator
H04L 61/10
Mapping addresses: of different types

Family

US 2006/0268862 A1Pre-grant publication · published 30 Nov 2006
US 7,613,123 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

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