Buffalo Inc.

Tetsuya Inada

Nobuhiro Tamura

An electronic device that relays an Internet Protocol (IP) packet compliant with one of a plurality of IP versions includes circuitry configured to process the IP packet in each of a first mode operating as a router and a second mode operating as a bridge; and set, as a mode of the electronic device, one of the first mode or the second mode, based on which of the plurality of IP versions the IP packet to be processed is compliant with.

Electronic device, network relay device, and non-transitory computer readable storage medium

An electronic device that relays an IPv4 packet includes circuitry configured to process the IPv4 packet in each of a first mode operating as a router and a second mode operating as a bridge, set one of the first mode and the second mode as a mode of the electronic device, terminate an IPv4 over IPv6 tunnel, and perform a communication test through the IPv4 over IPv6 tunnel with respect to another electronic device, and the another electronic device is connected with the electronic device via the IPv4 over IPv6 tunnel and terminates the IPv4 over IPv6 tunnel, and set the first mode as the mode, when a result of the communication test shows that communication is available.

A wireless LAN system, device, and method, and a medium having a wireless LAN program is provided. Wireless LAN devices are able to wirelessly communicate with each other by using a plurality of channels. A wireless LAN device is provided, including a requesting section and a post-request restoring section. The requesting section transmits a probe request by using a second channel selected from among a plurality of channels that the wireless LAN device can use, the probe request being assigned channel information indicating a first channel that the wireless LAN device currently uses. The post-request restoring section, when the second channel is not identical to the first channel, restores the channel used by the wireless LAN device from the second channel to the first channel within a first predetermined period from start of use of the second channel, after the transmission of the probe request.

Wireless LAN system, device, and method, and medium having wireless LAN program stored therein

A wireless LAN device and a wireless LAN system including three or more wireless LAN devices are provided. A wireless LAN device includes a wireless communication section for performing wireless communication so as to relay a packet in a wireless network. The wireless communication section includes a priority transmitting section for transmitting a priority level of the wireless LAN device to one or more other wireless LAN devices; a priority receiving section for receiving a priority level of the one or more other wireless LAN devices from the one or more other wireless LAN devices, and storing the received priority level in a priority storing section; and a relaying section for relaying the packet to the one or more other wireless LAN devices that has the highest priority level among the priority levels stored in the priority storing section.

Wireless LAN system, wireless LAN device, and storage medium having stored therein wireless LAN program

The wireless LAN deviceincludes a packet transmission controllerhaving the function of transmitting a DHCPDISCOVER packet from a LAN switchto wired devices and the function of causing an RF device to transmit a Probe Request packet to other wireless LAN devices through an antenna; a first operation controllerthat can set the wireless LAN devicein the operating mode where the wireless LAN devicecan operate as an access point, when the wireless LAN devicereceives DCHPOFFER packet; and a second operation controllerthat can set the wireless LAN devicein the operating mode where the wireless LAN devicecan operate as a client, when the wireless LAN devicereceives a Probe Response packet.

Wireless LAN device

An effective velocity estimation sectionof a wireless LAN device WLDconnected to a wireless terminal WT estimates effective velocities V on a plurality of wireless communication routes to a wireless LAN device WLDconnected to an external network. A selection sectionof the wireless LAN device WLDselects another wireless LAN device that realizes the maximum-speed effective velocity V of communication with the wireless LAN device connected to the external network, from among a plurality of other wireless LAN devices. A communication control sectionof the wireless LAN device WLDperforms connection processing for the selected wireless LAN device.

Wireless communication device, wireless communication system, and method for selecting wireless communication route

A wireless LAN device which performs wireless communication in a wireless network comprises: a communication section for performing the wireless communication such that a packet can be relayed in the wireless network; and a setting section for obtaining first identification information from another wireless LAN device present in a communicable state within a radio wave arrival range of the wireless LAN device, which first identification information can identify the other wireless LAN device, and setting a role for executing an asymmetric protocol asymmetric between the wireless LAN device and the other wireless LAN device, the role being set based on the first identification information, and second identification information, stored in the wireless LAN device, that can identify the wireless LAN device. The wireless LAN device shares an encryption key, based on the set role, and relays a packet by encrypting the packet by using the encryption key.

Growing community of inventors

Nagoya, Japan

Tetsuya Inada