WO2013105219A1 - Ipアドレス配布システムおよびipアドレス配布方法 - Google Patents
Ipアドレス配布システムおよびipアドレス配布方法 Download PDFInfo
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- WO2013105219A1 WO2013105219A1 PCT/JP2012/050285 JP2012050285W WO2013105219A1 WO 2013105219 A1 WO2013105219 A1 WO 2013105219A1 JP 2012050285 W JP2012050285 W JP 2012050285W WO 2013105219 A1 WO2013105219 A1 WO 2013105219A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5038—Address allocation for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
Definitions
- the present invention relates to an IP address distribution system and an IP address distribution method.
- TCP / IP which is often used as a communication protocol between devices
- an IP address is used as information for identifying the device.
- TCP / IP it is necessary to assign a uniquely determined IP address to each device on the network.
- an IP address is assigned so that there is no duplication in each device, and the IP address is recorded in a recording device in the device, and the device is recorded at the time of startup. There is a method of using an IP address.
- each device broadcasts an RARP message to the network when it is activated.
- the RARP server on the network distributes the IP address to the transmission source device via the network in response to the RARP message.
- a server that manages an IP address determines an IP address by distributing the IP address in response to a request from a device (see, for example, Non-Patent Document 1).
- a server that receives an IP address distribution request assigns an IP address to a request source device.
- the IP address is not assigned in consideration of the physical configuration of the network, the following problems exist.
- the IP address of the corresponding device after the replacement depends on the device arrangement. It is desirable to give the same (or associated) IP address that was given to the failed device.
- the IP address is assigned according to the arrangement of the device, convenience in managing the device is enhanced, for example, when the communication abnormality occurs, the device can be easily identified.
- the operator can respond by writing the desired IP address when installing the device.
- IP address corresponding to the installation position is automatically assigned later, operational convenience is improved. Further, when setting is performed manually by a person, there is a risk that a work mistake may occur, but the work mistake can be prevented by automation. Therefore, it is desirable that the IP address corresponding to the arrangement of the device is automatically distributed when the device is installed.
- An object of the present invention is to obtain an IP address distribution system and an IP address distribution method capable of assigning an IP address.
- an IP address distribution system provides a network formed by a plurality of switch devices and an IP in response to a request from a device connected to the switch devices.
- the location information distribution device delivers location information to a terminal to which an IP address is assigned, and the terminal includes location information and its own device type information when requesting IP address distribution.
- An IP address request signal is transmitted, and the IP address distribution device assigns an IP address according to the type and location information of the requesting terminal, so that the IP address can be distributed according to the position of the device on the physical wiring of the network. , Has the effect.
- FIG. 1 is a diagram illustrating a configuration example of the IP address distribution system according to the first embodiment.
- FIG. 2 is a diagram illustrating a configuration example of a position information packet.
- FIG. 3 is a diagram illustrating a configuration example of the IP address request signal.
- FIG. 4 is a diagram showing a configuration example of the IP address distribution table.
- FIG. 5 is a sequence diagram illustrating an example of a procedure for determining the IP address of a terminal in the IP address distribution system according to the first embodiment.
- FIG. 6 is a diagram illustrating a configuration example of the IP address distribution system according to the second embodiment.
- FIG. 7 is a diagram illustrating a configuration example of the IP address distribution system according to the third embodiment.
- FIG. 1 is a diagram illustrating a configuration example of the IP address distribution system according to the first embodiment.
- FIG. 2 is a diagram illustrating a configuration example of a position information packet.
- FIG. 3 is a diagram illustrating a configuration example of the IP address request signal
- FIG. 8 is a diagram illustrating a configuration example of a position information packet according to the third embodiment.
- FIG. 9 is a diagram illustrating a configuration example of an IP address request signal according to the third embodiment.
- FIG. 10 is a diagram illustrating a configuration example of the IP address distribution system according to the fourth embodiment.
- FIG. 1 is a diagram illustrating a configuration example of the IP address distribution system according to the first embodiment.
- the IP address distribution system according to the present embodiment includes position information distribution devices 1 and 2, IP address distribution devices 3 and 4, and switch devices 5 and 6 that are Ethernet (registered trademark) switches. .
- the location information distribution device 1 and the IP address distribution device 3 are connected to a switch device 5, and the location information distribution device 2 and the IP address distribution device 4 are connected to a switch device 6.
- the switch device 5 and the switch device 6 are connected by a physical port 11 of the switch device 5 and a physical port 12 of the switch device 6.
- the terminals 7 and 8 are connected to the physical port of the switch device 5, and the terminals 9 and 10 are connected to the physical port of the switch device 6.
- the terminals 7 to 10 are network devices that request the IP address distribution device 3 or 4 to assign an IP address and receive the IP address assignment.
- the position information distribution apparatuses 1 and 2 distribute position information indicating where in the network (physical installation position) to a terminal connected to the switch apparatus 5 or 6.
- the IP address distribution devices 3 and 4 hold an IP address distribution table (details will be described later), and when an IP address distribution request is received from a terminal, an IP address is assigned according to the IP address distribution table.
- FIG. 2 is a diagram illustrating a configuration example of a location information packet that is transmitted when the location information distribution apparatuses 1 and 2 notify the terminal of location information in the IP address distribution system according to the first embodiment.
- the position information packet has an area for storing a transmission destination address, a transmission source address, and a position information value.
- the location information distribution devices 1 and 2 transmit the location information packet shown in FIG. 2 at a predetermined timing (for example, periodically). At this time, the location information distribution devices 1 and 2 set the location information distribution multicast address as the destination address, set the IP address of the own device as the source address, and receive the location information packet as the location information value. A value indicating the position of the selected terminal in the network is set. Note that the position information distribution apparatuses 1 and 2 set a value unique to each position information distribution apparatus as the position information value so as not to overlap with the value set in the position information packet by other position information distribution apparatuses.
- the operation (setting of physical ports) of the switch devices 5 and 6 will be described.
- the physical port 11 of the switch device 5 blocks a packet in which a multicast address for position information distribution is set as a transmission destination address. Other physical ports do not block packets whose destination address is a multicast address for location information distribution.
- the physical port 12 of the switch device 6 blocks a packet in which a multicast address for position information distribution is set as a transmission destination address. Other physical ports do not block packets whose destination address is a multicast address for location information distribution. That is, the switch devices 5 and 6 block packets in which the multicast address for position information distribution is set as the transmission destination address in the physical port connected to the other switch device.
- the position information packet transmitted from the position information distribution apparatus 1 reaches only the terminals 7 and 8
- the position information packet transmitted from the position information distribution apparatus 2 reaches only the terminals 9 and 10.
- FIG. 3 is a diagram showing a configuration example of an IP address request signal transmitted to the IP address distribution device 3 or 4 when the terminals 7 to 10 request IP address distribution in the IP address distribution system according to the first embodiment. is there.
- the IP address request signal has areas for storing a transmission destination address, a transmission source address, a position information value, and device specific information.
- a broadcast address and a temporary IP address are set as the transmission destination address and the transmission source address, respectively.
- the position information value the position information value (see FIG. 2) included in the position information packet received by the transmission source device from the position information distribution apparatus is set.
- information device type information
- the type of the transmission source device is set.
- the terminals 7 to 10 are devices installed in a train vehicle
- device type information indicating a guidance indicator, an air conditioner, a brake device, etc. is set in the device specific information. It is assumed that each terminal holds device type information in advance.
- the IP address distribution table held by the IP address distribution device is information indicating an IP address distributed to a combination of a position information value and device specific information (which is device type information in the present embodiment) or a range of IP addresses to be distributed.
- the information is as shown in FIG.
- the IP address distribution device When receiving the IP address request signal, the IP address distribution device confirms the position information value and device specific information (device type information) set in the received request signal, and selects an IP address corresponding to the combination of these information. Assign to the requesting terminal.
- the IP address distribution device holding the IP address distribution table shown in FIG. 4 has an IP address request signal in which “1” is set in the position information value and “A device” is set in the device specific information.
- IP address request signal in which “2” is set in the position information value and “Other” is set in the device specific information is received, “192.168.2.3 to 192.
- IP addresses included in the range of “168.2.2.254” an IP address that is not assigned to any terminal is selected and assigned.
- the location information distribution apparatuses 1 and 2 periodically transmit location information packets by multicast.
- the terminals 7 to 10 receive location information packets from a plurality of location information distribution devices. None receive.
- the terminals 7 to 10 extract the position information value from the position information packet.
- the terminals 7 to 10 request IP address assignment (when IP addresses are not assigned), the position information value acquired from the position information distribution device 1 or 2 and the device type information held in advance are stored.
- the IP address distribution devices 3 and 4 determine an IP address to be assigned to the requesting terminal using the held IP address distribution table (see FIG. 4), and the determined IP address An IP address distribution signal including the above information is transmitted to the request source terminal.
- the IP address distribution apparatuses 3 and 4 hold the same IP address distribution table, and when receiving an IP address request signal, assign an IP address in the same procedure. That is, the IP address distribution devices 3 and 4 assign the same IP address when receiving the IP address request signal having the same position information value and device type information.
- the terminals 7 to 10 receive the IP address distribution signal having the same contents from different IP address distribution devices a plurality of times. Therefore, if the signal that has arrived first can be normally received, the terminal 7 to 10 May be ignored. Further, when the IP address distribution signal received a plurality of times includes the same IP address information, it may be determined that the IP address has been correctly assigned, and the use of the assigned IP address may be started.
- the IP address distribution apparatus can operate as a DHCP server, and the terminal can operate as a DHCP client. It is.
- the IP address distribution system is configured to include the location information distribution device, the IP address distribution device, and the switch device, and the location information distribution device is physically connected to the terminal that receives the IP address assignment.
- the terminal requests distribution of the IP address
- the terminal transmits an IP address request signal including the position information acquired from the position information distribution device and its own device type information.
- the address distribution device assigns an IP address according to the type of the requesting terminal and the installation position. As a result, it is possible to distribute the IP address in correspondence with the position (installation position) of the device on the physical wiring of the network.
- IP address assigned to the failed device is released at the time of replacement or before replacement, the device after replacement is replaced with the device before replacement.
- the same IP address can be assigned.
- an IP address having a value close to that assigned to the device before replacement is assigned to the device after replacement. be able to.
- the IP address distribution device sends an inquiry to each device to which an IP address has been assigned in a predetermined cycle, and there is no response In this case, the IP address assigned to the corresponding device may be released.
- the IP address distribution device when the IP address distribution device receives the IP address request signal, the IP address distribution device transmits a signal destined for each of the distributed IP addresses in the range corresponding to the added arrangement information, and transmits the device (IP address). If there is a device with no response, the IP address assigned to this device may be redistributed to the device that sent the IP address request signal. In this case, when the device is replaced, the IP address assigned to the device before the replacement can be surely assigned to the device after the replacement.
- the switch device blocks the position information packet at a predetermined physical port so that only the position information packet transmitted from one position information distribution device reaches each terminal, the actual installation position of the terminal The IP address corresponding to can be assigned with certainty.
- IP address distribution system having two IP address distribution apparatuses has been described. However, only one IP address distribution apparatus is required in the system.
- position information distribution device and the IP address distribution device have been described as separate devices, the position information distribution function and the IP address distribution function may be incorporated into the same device.
- FIG. FIG. 6 is a diagram illustrating a configuration example of the IP address distribution system according to the second embodiment.
- the IP address distribution system according to the present embodiment includes position information distribution devices 1 and 2, IP address distribution devices 3 and 4, and switch devices 20 to 22 which are Ethernet (registered trademark) switches. .
- the location information distribution device 1 and the IP address distribution device 3 are connected to the switch device 20, and the location information distribution device 2 and the IP address distribution device 4 are connected to the switch device 22.
- the switch device 20 and the switch device 21 are connected by a physical port 23 of the switch device 20 and a physical port 24 of the switch device 21.
- the switch device 21 and the switch device 22 are connected by a physical port 25 of the switch device 21 and a physical port 26 of the switch device 22.
- the terminal 7 is connected to the physical port of the switch device 20
- the terminal 8 is connected to the physical port of the switch device 21
- the terminal 9 is connected to the physical port of the switch device 22.
- the difference between the IP address distribution system of the present embodiment and the IP address distribution system of the first embodiment is the port setting in the switch device. Since the location information distribution device, the IP address distribution device, and the terminal perform the same operation as in the first embodiment, description of the operation is omitted.
- the operation of the switch devices 20 to 22 (physical port setting) will be described.
- the physical port 23 of the switch device 20 and the physical port 24 of the switch device 21 pass the multicast address for position information distribution.
- the physical port 25 of the switch device 21 and the physical port 26 of the switch device 22 block the multicast address for position information distribution.
- the terminals 7 and 8 receive only the position information packet transmitted from the position information distribution apparatus 1, and the terminal 9 receives only the position information packet transmitted from the position information distribution apparatus 2.
- the IP address of each terminal can be determined by the same IP address determination procedure as in the first embodiment. That is, a specific physical port of the switch device blocks the location information packet according to the number and location of the location information distribution devices, and only one location information distribution device for each terminal receiving the IP address distribution.
- FIG. 7 is a diagram illustrating a configuration example of the IP address distribution system according to the third embodiment.
- the IP address distribution system according to the present embodiment has the same configuration as the IP address distribution system described in the first embodiment.
- each physical port of the switch devices 5 and 6 has an identification number (P1, P2,...), And setting of passage and blocking of the location information packet is performed for each physical port. make it possible.
- the position information distribution device performs setting of passage and blocking of the position information packet of the switch device. That is, the location information distribution device 1 sets the distribution and blocking of the location information packet of each physical port of the switch device 5, and the location information distribution device 2 sets the distribution and blocking of the location information packet of each physical port of the switch device 6. Set up. As in the first and second embodiments, a specific physical port of a switch device (other switch devices are connected so that location information packets are not distributed from two location information distribution devices to one terminal. Block the location information packet.
- the location information distribution apparatuses 1 and 2 transmit the location information packet having the configuration shown in FIG.
- FIG. 8 is a diagram illustrating a configuration example of a location information packet distributed by the location information distribution apparatus according to the third embodiment. That is, the location information distribution apparatuses 1 and 2 set the location information value and the physical port number in the location information packet.
- the location information distribution devices 1 and 2 control the physical port of the switch device before sending the location information packet, and the location information packet is transmitted only from the physical port corresponding to the physical port number set in the location information packet. Set to be.
- the location information distribution apparatuses 1 and 2 periodically transmit location information packets in the same manner as in the first embodiment, but change the physical port number in the location information packet every time transmission is performed. As a result, the physical port number in the position information packet changes periodically.
- Each terminal can recognize the physical port number of the connected switch device.
- FIG. 9 is a diagram illustrating a configuration example of an IP address request signal transmitted by the terminal according to the third embodiment.
- the IP address request signal transmitted by the terminal according to the present embodiment has the same configuration as the IP address request signal described in the first embodiment.
- the information set in the device specific information is different. That is, the terminal according to the present embodiment sets the physical port number set in the position information packet received from the position information distribution device as the device specific information.
- Information similar to that in the first embodiment is set in the transmission destination address, transmission source address, and position information value.
- the IP address distribution devices 3 and 4 hold an IP address distribution table corresponding to the combination of the position information value and the physical port number.
- the IP address request signal When receiving the IP address request signal from the terminal, the IP address request signal The IP address is determined using the location information and physical port number set in the IP address and the held IP address distribution table, and the IP address is distributed to the terminal.
- the new terminal can be assigned the same IP address as the old terminal.
- FIG. 10 is a diagram illustrating a configuration example of the IP address distribution system according to the fourth embodiment.
- an IP address distribution system built in a train will be described.
- the IP address distribution system includes switch devices 30 to 33, an IP address distribution device 34, and position information distribution devices 35 and 36. Each of these devices is mounted on a train, and switch devices 30 and 31, an IP address distribution device 34, and a location information distribution device 35 are installed in the first car. Switch devices 32 and 33 and a position information distribution device 36 are installed in the second car. A switch device 31 and an IP address distribution device 34 are connected to the switch device 30. A position information distribution device 35 is connected to the switch device 31. Further, the physical port 41 of the switch device 31 and the physical port 42 of the switch device 32 are connected. A switch device 33 is connected to the switch device 32, and a position information distribution device 36 is connected to the switch device 33.
- an air conditioner (AC) 37 is connected to the switch device 30 as a terminal
- a brake device (BR) 38 is connected to the switch device 31 as a terminal
- an air conditioner 39 and a brake device 40 are connected to the switch device 32 as terminals. Is connected.
- Each device (switch device, IP address distribution device, location information distribution device) constituting the IP address distribution system has the same function as each device described in the first embodiment.
- the position information packet is blocked at a physical port connecting switch devices installed in different vehicles. Specifically, the physical port 41 of the switch device 31 blocks the location information packet transmitted from the location information distribution device 35, and the physical port 42 of the switch device 32 receives the location information packet transmitted from the location information distribution device 36. Cut off.
- an IP address can be fixedly assigned to each vehicle and each device type.
- the same IP address as that assigned to the device before replacement can be assigned to the device after replacement.
- each device described in the third embodiment can be applied as each device constituting the IP address distribution system shown in FIG.
- one position information distribution device is provided for each of a plurality of vehicles. 10 other than the configuration shown in FIG. 10, such as a configuration that distributes the same location information packet across multiple vehicles, a configuration that includes multiple location information distribution devices in the same vehicle, and distributes multiple types of location information packets in the same vehicle It does not matter.
- IP address distribution system As described in each embodiment, according to the IP address distribution system according to the present invention, a fixed IP address can be assigned to each terminal. It is not necessary to set.
- the IP address distribution system according to the present invention is useful when it is necessary to manage and assign IP addresses in consideration of the physical configuration of the network.
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Abstract
Description
図1は、実施の形態1のIPアドレス配布システムの構成例を示す図である。本実施の形態のIPアドレス配布システムは、位置情報配布装置1および2と、IPアドレス配布装置3および4と、イーサネット(登録商標)スイッチであるスイッチ装置5および6とを含んで構成されている。位置情報配布装置1およびIPアドレス配布装置3はスイッチ装置5に接続され、位置情報配布装置2およびIPアドレス配布装置4はスイッチ装置6に接続されている。スイッチ装置5とスイッチ装置6は、スイッチ装置5の物理ポート11とスイッチ装置6の物理ポート12で接続されている。
図6は、実施の形態2のIPアドレス配布システムの構成例を示す図である。本実施の形態のIPアドレス配布システムは、位置情報配布装置1および2と、IPアドレス配布装置3および4と、イーサネット(登録商標)スイッチであるスイッチ装置20~22とを含んで構成されている。位置情報配布装置1およびIPアドレス配布装置3はスイッチ装置20に接続され、位置情報配布装置2およびIPアドレス配布装置4はスイッチ装置22に接続されている。スイッチ装置20とスイッチ装置21は、スイッチ装置20の物理ポート23とスイッチ装置21の物理ポート24で接続されている。スイッチ装置21とスイッチ装置22は、スイッチ装置21の物理ポート25とスイッチ装置22の物理ポート26で接続されている。
図7は、実施の形態3のIPアドレス配布システムの構成例を示す図である。本実施の形態のIPアドレス配布システムは、実施の形態1で説明したIPアドレス配布システムと同様の構成である。
図10は、実施の形態4のIPアドレス配布システムの構成例を示す図である。本実施の形態では、列車内に構築されたIPアドレス配布システムについて説明する。
3,4,34 IPアドレス配布装置
5,6,20~22,30~33 スイッチ装置
7~10 端末
37,39 空調装置(AC)
38,40 ブレーキ装置(BR)
Claims (8)
- 複数のスイッチ装置により形成されたネットワークと、
前記スイッチ装置に接続された機器からの要求に応じてIPアドレスを割り当てるIPアドレス配布装置と、
位置情報を含んだ位置情報パケットを前記ネットワーク内にブロードキャストする複数の位置情報配布装置と、
を備え、
前記スイッチ装置のうち、1台以上のスイッチ装置の特定の物理ポートにおいて前記位置情報パケットを遮断することにより、前記機器の各々に対して単一の位置情報パケットのみを配信し、
前記機器は、IPアドレスの割り当てを要求する場合、前記位置情報および機器固有情報を含んだIPアドレス要求信号を送信し、
前記IPアドレス配布装置は、前記IPアドレス要求信号を受信した場合、当該IPアドレス要求信号に含まれている位置情報および機器固有情報に応じた範囲からIPアドレスを選択して要求元の機器に配布する、
ことを特徴とするIPアドレス配布システム。 - 前記機器は、前記機器固有情報として、自身の機器種別を示す情報をIPアドレス要求信号に含ませることを特徴とする請求項1に記載のIPアドレス配布システム。
- 前記位置情報配布装置は、前記スイッチ装置の物理ポートのうち、位置情報パケットの配布対象機器を接続する物理ポートが位置情報パケットを通過させるか否かを個別に設定した上で物理ポート番号の情報を含んだ位置情報パケットをブロードキャストすることにより、位置情報パケットの配信先の機器に当該機器が接続している物理ポートの識別番号を通知し、
前記機器は、前記機器固有情報として、自身が接続している物理ポートの識別番号をIPアドレス要求信号に含ませることを特徴とする請求項1に記載のIPアドレス配布システム。 - 前記ネットワークを列車内に構築されたネットワークとすることを特徴とする請求項1に記載のIPアドレス配布システム。
- 前記位置情報配布装置が各車両に設置されており、
前記スイッチ装置のうち、他の車両に設置されているスイッチ装置と接続されているスイッチ装置は、他の車両に設置されているスイッチ装置が接続されている物理ポートにおいて位置情報パケットを遮断することを特徴とする請求項4に記載のIPアドレス配布システム。 - 複数のスイッチ装置により形成されたネットワークと、前記スイッチ装置に接続された機器からの要求に応じてIPアドレスを割り当てるIPアドレス配布装置と、位置情報を含んだ位置情報パケットを前記ネットワーク内にブロードキャストする複数の位置情報配布装置と、を備えたシステムにおけるIPアドレス配信方法であって、
前記スイッチ装置のうち、1台以上のスイッチ装置の特定の物理ポートにおいて前記位置情報パケットを遮断することにより、前記機器の各々に対して単一の位置情報パケットのみを配信する位置情報配信ステップと、
前記機器が、前記位置情報および機器固有情報を含んだIPアドレス要求信号を送信するIPアドレス要求ステップと、
前記IPアドレス配布装置が、前記IPアドレス要求信号を受信した場合に、当該IPアドレス要求信号に含まれている位置情報および機器固有情報に応じた範囲からIPアドレスを選択して要求元の機器に配布するIPアドレス配布ステップと、
を含むことを特徴とするIPアドレス配布方法。 - 前記機器は、前記機器固有情報として、自身の機器種別を示す情報をIPアドレス要求信号に含ませることを特徴とする請求項6に記載のIPアドレス配布方法。
- 前記位置情報配布装置が、前記スイッチ装置の物理ポートのうち、位置情報パケットの配布対象機器を接続する物理ポートが位置情報パケットを通過させるか否かを個別に設定した上で物理ポート番号の情報を含んだ位置情報パケットをブロードキャストすることにより、位置情報パケットの配信先の機器に当該機器が接続している物理ポートの識別番号を通知する物理ポート情報通知ステップ、
をさらに含み、
前記機器は、前記機器固有情報として、自身が接続している物理ポートの識別番号をIPアドレス要求信号に含ませることを特徴とする請求項6に記載のIPアドレス配布方法。
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CN201280066427.0A CN104106239A (zh) | 2012-01-10 | 2012-01-10 | Ip地址分配系统及ip地址分配方法 |
US14/364,496 US9391950B2 (en) | 2012-01-10 | 2012-01-10 | IP address distribution system and IP address distribution method |
EP12864724.5A EP2804345B1 (en) | 2012-01-10 | 2012-01-10 | Ip address distribution system and ip address distribution method |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015149341A1 (zh) * | 2014-04-03 | 2015-10-08 | 华为技术有限公司 | Ip地址分配装置、系统及方法 |
WO2016079824A1 (ja) * | 2014-11-19 | 2016-05-26 | 三菱電機株式会社 | Ipアドレス配信装置、ipアドレス配信システム、およびipアドレス配信方法 |
CN106576059A (zh) * | 2014-07-18 | 2017-04-19 | 三菱电机株式会社 | Ip地址分发系统、交换机装置以及ip地址分发方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009242656A (ja) | 2008-03-31 | 2009-10-22 | Ube Ind Ltd | 摩擦材及び摩擦材用樹脂組成物 |
JP5695689B2 (ja) * | 2013-03-12 | 2015-04-08 | 日本電信電話株式会社 | ネットワークブートシステム及びネットワークブート方法 |
US9374237B2 (en) * | 2014-02-14 | 2016-06-21 | Verizon Patent And Licensing Inc. | Virtual rendezvous point (RP) address for multicast RP device |
JP6410929B2 (ja) * | 2015-04-20 | 2018-10-24 | 三菱電機株式会社 | 列車データ伝送システム及び列車データ伝送プログラム |
US10200342B2 (en) * | 2015-07-31 | 2019-02-05 | Nicira, Inc. | Dynamic configurations based on the dynamic host configuration protocol |
CN106603735B (zh) * | 2015-10-19 | 2020-06-26 | 华为技术有限公司 | 一种分配智能仪表通信地址的方法、装置和系统 |
CN108476549B (zh) * | 2016-01-19 | 2021-03-30 | 华为技术有限公司 | 一种ip地址分配方法及设备 |
CN112040026A (zh) * | 2020-09-10 | 2020-12-04 | 株洲中车时代电气股份有限公司 | 基于列车以太网的智能地址分配管理装置、系统及方法 |
CN112367416B (zh) * | 2021-01-15 | 2021-03-12 | 湖南高至科技有限公司 | 远程设置设备ip地址的系统、方法和计算机设备 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4744645B2 (ja) * | 2009-01-27 | 2011-08-10 | 三菱電機株式会社 | 列車用通信システム及び列車用通信方法 |
JP4790088B2 (ja) * | 2009-01-28 | 2011-10-12 | 三菱電機株式会社 | Ipアドレス配信装置およびipアドレス配信方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3847705B2 (ja) * | 2002-12-20 | 2006-11-22 | 三菱電機株式会社 | 列車車両間通信中継装置 |
JP4052522B2 (ja) * | 2006-04-12 | 2008-02-27 | 松下電器産業株式会社 | ネットワーク機器及びネットワーク機器管理方法 |
US8665871B2 (en) * | 2006-05-12 | 2014-03-04 | Telsima Corporation | Dynamic VLAN IP network entry |
US8868700B2 (en) * | 2010-12-28 | 2014-10-21 | Nant Holdings Ip, Llc | Distributed network interfaces for application cloaking and spoofing |
-
2012
- 2012-01-10 JP JP2012519647A patent/JP5106707B1/ja active Active
- 2012-01-10 WO PCT/JP2012/050285 patent/WO2013105219A1/ja active Application Filing
- 2012-01-10 CN CN201280066427.0A patent/CN104106239A/zh active Pending
- 2012-01-10 EP EP12864724.5A patent/EP2804345B1/en active Active
- 2012-01-10 US US14/364,496 patent/US9391950B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4744645B2 (ja) * | 2009-01-27 | 2011-08-10 | 三菱電機株式会社 | 列車用通信システム及び列車用通信方法 |
JP4790088B2 (ja) * | 2009-01-28 | 2011-10-12 | 三菱電機株式会社 | Ipアドレス配信装置およびipアドレス配信方法 |
Non-Patent Citations (3)
Title |
---|
DOUGLAS E. COMER: "Internetworking with TCP/IP", vol. 1, KYORITSU SHUPPAN |
HIDEO MASUDA ET AL.: "Implementation of a port-aware DHCP server using FDB in the Switching HUB", IPSJ SIG NOTES, 2005-DSM-37, vol. 2005, no. 39, 13 May 2005 (2005-05-13), pages 41 - 46, XP008173709 * |
See also references of EP2804345A4 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015149341A1 (zh) * | 2014-04-03 | 2015-10-08 | 华为技术有限公司 | Ip地址分配装置、系统及方法 |
CN105519079A (zh) * | 2014-04-03 | 2016-04-20 | 华为技术有限公司 | Ip地址分配装置、系统及方法 |
US9854554B2 (en) | 2014-04-03 | 2017-12-26 | Huawei Technologies Co., Ltd. | IP address assignment apparatus, system, and method |
CN105519079B (zh) * | 2014-04-03 | 2019-05-10 | 华为技术有限公司 | Ip地址分配装置、系统及方法 |
CN106576059A (zh) * | 2014-07-18 | 2017-04-19 | 三菱电机株式会社 | Ip地址分发系统、交换机装置以及ip地址分发方法 |
JPWO2016009562A1 (ja) * | 2014-07-18 | 2017-04-27 | 三菱電機株式会社 | Ipアドレス配布システム、スイッチ装置、およびipアドレス配布方法 |
CN106576059B (zh) * | 2014-07-18 | 2019-10-11 | 三菱电机株式会社 | Ip地址分发系统、交换机装置以及ip地址分发方法 |
WO2016079824A1 (ja) * | 2014-11-19 | 2016-05-26 | 三菱電機株式会社 | Ipアドレス配信装置、ipアドレス配信システム、およびipアドレス配信方法 |
JPWO2016079824A1 (ja) * | 2014-11-19 | 2017-04-27 | 三菱電機株式会社 | Ipアドレス配信装置、ipアドレス配信システム、およびipアドレス配信方法 |
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