JPWO2018105053A1 - Communication relay device and determination method - Google Patents

Abstract

A communication relay apparatus is provided that connects terminals, determines the classification of devices to which the terminals belong, and outputs information related to the classification. A communication relay device according to an embodiment of the present invention includes: a receiving unit that receives terminal related information including at least one of information related to communication of a terminal under management and information related to whether the terminal is a power receiving device; A table storing information in which terminal related information is associated with the classification of the device to which the terminal belongs, and a determination unit that compares the received terminal related information with each other to determine the classification of the device to which the terminal belongs Prepare

Description

  The present invention relates to a communication relay device and a determination method.

  Conventionally, a technology has been disclosed that supports management of connection relationships and the like of communication devices in a LAN (Local Area Network) (for example, Patent Document 1).

  In the technology disclosed in Patent Document 1, the icons representing the router and each of the nodes immediately below the router are displayed as an image of a tree structure, and the detailed information (terminal type, maker name, model name, etc.) regarding the router and nodes is displayed. Do.

JP, 2015-228629, A

  However, in the technology disclosed in Patent Document 1, detailed information on routers and nodes must be stored in advance in a table in association with MAC addresses of communication devices such as routers and nodes.

  The present invention is intended to solve the problems associated with the prior art as described above, and the purpose thereof is to connect a terminal, determine the classification of a device to which the terminal belongs, and output information on the classification Providing a communication relay device.

  According to an embodiment of the present invention, there is provided a receiving unit for receiving terminal related information including at least one of information related to communication of a terminal under management and information related to whether or not the terminal is a power receiving device; Communication relay, comprising: a table storing information in which the device is associated with the classification of the device to which the terminal belongs, and a determination unit determining the classification of the device to which the terminal belongs by comparing the received terminal related information An apparatus is provided.

  According to the present invention, it is possible to provide a communication relay apparatus that connects terminals, determines the classification of devices to which the terminals belong, and outputs information related to the classification.

It is a figure which shows the structural example of the communication system containing the communication relay apparatus which concerns on one Embodiment of this invention. It is a block diagram showing an example of composition of a communication relay device concerning one embodiment of the present invention. It is a figure which shows an example of the classification condition memory | storage part of the communication relay apparatus based on one Embodiment of this invention. It is a figure which shows the example of an image displayed on the display part of the communication relay apparatus which concerns on one Embodiment of this invention. It is a figure which shows an example of the operation | movement flow of the communication relay apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the structural example of the communication relay apparatus based on the modification of this invention. It is a block diagram which shows the structural example of the communication relay apparatus based on the modification of this invention.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The embodiment shown below is an example of the embodiment of the present invention, and the present invention is not limited to these embodiments. In the drawings referred to in this embodiment, the same portions or portions having similar functions are denoted by the same reference symbols or similar reference symbols (symbols only having a, b, etc. appended after numbers), and the repetition thereof The description of may be omitted.

Embodiment
FIG. 1 is a diagram showing an example of a configuration of a communication system including a communication relay device according to an embodiment of the present invention. The communication system 1 includes a router (communication relay device) 2, an L3 switch 3, L2 switches 5a and 5b, and terminals 7a to 7e. The LAN 11 is a Local Area Network, and is connected to a communication network 10 such as the Internet via the router 2. The L2 switches 5a and 5b and the terminals 7a to 7e are described as "L2 switch 5" and "terminal 7", respectively, when it is not necessary to distinguish them.

  The L2 switches 5a and 5b are connected to the L3 switch 3. The terminal 7a is connected to the L2 switch 5a, and the terminals 7b to 7e are connected to the L2 switch 5b. The L2 switch 5 is a switch that transfers a frame in layer 2 (data link layer), and the L3 switch 3 is a switch that transfers packets in layer 3 (network layer). The connection between the router 2 and the L3 switch 3, the connection between the L3 switch 3 and the L2 switch 5, and the connection between the L2 switch and the terminal 7 may be wired connection or wireless connection.

  The terminal 7 may be a terminal connectable to a network, for example, a personal computer, an IP (Internet Protocol) camera, a recorder, an IP telephone, a wireless AP (Access Point), a PoE (Power over Ethernet) speaker, a PoE microphone, a server , L2 switch, L3 switch, router and the like. When the terminal 7 is a router, there is a router under the management of the router 2. The communication system 1 has been described above.

[Configuration of communication relay device]
FIG. 2 is a block diagram showing a configuration example of a communication relay device according to an embodiment of the present invention. The router (communication relay device) 2 includes a control unit 30, an operation unit 40, a display unit 50, a storage unit 60, a connection unit 70, and a communication unit 90. Each of these configurations is connected via a bus.

  The communication unit 90 transmits and receives information to and from an external device. The receiving unit 39 receives the terminal related information of the terminal 7 under control of the router 2 through the communication unit 90.

  Here, the terminal related information means information related to the terminal 7. The terminal related information is, for example, information on communication of the terminal 7, information on whether the terminal 7 is a power receiving device, MAC address (identification information) of the terminal 7, and the like. The information related to the communication of the terminal 7 is, for example, information related to the communication protocol of the terminal 7, the communication amount of the terminal 7, and the direction of communication in the terminal 7. The power receiving device means a power receiving device (Powered Device; PD) that receives supply of power from a device on the power supply side (Power Sourcing Equipment; PSE). The receiving unit 39 receives terminal related information including at least one of information on communication of the terminal 7 under the control of the router 2 and information on whether the terminal is a power receiving device.

  The storage unit 60 is a storage device such as a non-volatile memory and a hard disk. The storage unit 60 includes a storage area storing application programs for realizing various functions such as programs, and a storage area storing setting information set by setting processing or the like. The program may be provided as long as it can be executed by a computer, and may be provided stored in a computer readable recording medium such as a magnetic recording medium, an optical recording medium, a magneto-optical recording medium, or a semiconductor memory. In this case, the router 2 may include an apparatus for reading a recording medium. Also, the program may be downloaded via a network. The storage unit 60 may be located outside the router 2 such as on a network (cloud).

  The storage unit 60 includes a classification condition storage unit 61 and a classification result storage unit 63. The classification condition storage unit 61 stores information in which the terminal related information and the classification of the device to which the terminal 7 belongs are associated. In other words, the classification condition storage unit 61 has a table storing information in which the terminal related information and the classification of the device to which the terminal 7 belongs are associated. Here, the classification condition storage unit 61 will be described with reference to FIG. FIG. 3 is a diagram showing an example of the classification condition storage unit of the communication relay device according to the embodiment of the present invention. The first condition 101, the second condition 103, and the third condition 105 are all terminal related information. In this example, the first condition 101 is information on the maker of the terminal. The second condition 103 is information on the communication protocol. The third condition 105 is information regarding whether the device is a power receiving device, that is, information regarding whether or not power is received by PoE. The terminal related information and the classification of the device to which the terminal 7 belongs are associated with each other. Specifically, the information that the first condition 101 is “manufacturer A company”, the second condition 103 is “ONVIF communication”, and the third condition 105 is “power receiving by PoE” is called “IP camera”. It is associated with the classification of the device.

  Description will be made again using FIG. The classification result storage unit 63 stores the result determined by the determination unit 31 described later. The classification result storage unit 63 associates and stores, for example, the MAC address of the terminal, the maker name, and the product classification.

  Control unit 30 includes an arithmetic processing circuit such as a CPU. The control unit 30 executes a program stored in the storage unit 60 by a CPU (computer) to realize a function for performing determination processing, setting processing, and identification processing described later. The determination process, the setting process, and the identification process are realized by a determination unit 31, a setting unit 33, and a specification unit 35, which will be described later. The reception unit 39 executes the program 66 to transmit, via the communication unit 90, terminal related information including at least one of information on communication of the terminal 7 under management and information on whether the terminal is a power receiving device. To receive. A part or all of the configuration for realizing the functions here is not limited to the case of being realized by software by execution of a program, and may be realized by hardware. The function realized by the control unit 30 includes a function of controlling each part of the apparatus in addition to the function of performing setting processing (setting function).

  Control unit 30 includes a determination unit 31, a setting unit 33, a specification unit 35, an output unit 37, and a reception unit 39. The determination unit 31 compares the terminal related information received by the reception unit 39 with the table of the classification condition storage unit 61 to determine the classification of the device to which the terminal 7 belongs. Referring to FIG. 3, for example, with regard to the terminal related information received by the reception unit 39, the MAC address represents the maker A company, the information related to the communication protocol is communication in ONVIF (Open Network Video Interface Forum), the terminal When 7 is information indicating that the device is a power receiving device (receiving power by PoE), it can be determined as an "IP camera" as compared with the table (information shown in FIG. 3) of the classification condition storage unit 61.

  Here, the MAC address is represented by a 12-digit hexadecimal number, and the first half 6-digit portion thereof is called OUI (Organizationally Unique Identifier) and represents a code of a product vendor (maker). Therefore, the manufacturer can be determined from the OUI of the MAC address. For example, when the OUI representing the manufacturer A is “AA: AA: AA”, the determination unit 31 determines, among the information in the table of the classification condition storage unit 61, information that matches “AA: AA: AA”. Determine if there is. Here, the notation “manufacturer is company A” in FIG. 3 means that the OUI of the MAC address is “AA: AA: AA”.

  From the information on the communication protocol, the determination unit 31 determines what communication protocol the terminal 7 uses for communication. The determination unit 31 can determine, for example, whether the communication is communication using SIP (Session Initiation Protocol) by analyzing the request line. The SIP exchanges messages in text format, and the request line is the first line of the text message. The request line is made up of three methods, request URI (Uniform Resource Identifier), and protocol version information. For example, in the case of SIP, the protocol version information is described as "SIP / 2.0" or the like. Therefore, when the protocol version information is “SIP / x.x” (x is arbitrary), the determination unit 31 determines that communication is performed using SIP.

  The determination unit 31 determines, for example, whether the communication is ONVIF communication based on the protocol and the communication amount. In ONVIF, protocols such as Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), and SOAP are mainly used as high-order protocols of HTTP (HyperText Transfer Protocol). In the case of HTTP, for example, “HTTP / 1.1” or the like is described as protocol version information by analyzing the request line. Therefore, when the protocol version information is “HTTP / x.x” (x is arbitrary), the determination unit 31 determines that HTTP is used.

  In the case of RTP, the port number of UDP is "5004". When the UDP port number is “5004”, the determination unit 31 can determine whether RTP is used. Also, in the case of RTSP, the request line for playing back or starting the video is, for example, "PLAY rtsp: //audio.xxxxx.com/audio RTSP / 1.0". In the case of RTSP, the UDP port number is "5005". Therefore, the determination unit 31 determines that RTSP is used when the RTSP / x.x (x is arbitrary) is present in the request line and the UDP boat number is “5005”. Further, in the case of SOAP, since “soapenv: Header” is described in the SOAP header, the determination unit 31 can determine whether SOAP is used. With regard to the amount of communication, the flow of video results in a constant amount of communication.

  The determination unit 31 determines whether the terminal 7 is a power receiving device receiving power by PoE from the information on whether the device is a power receiving device. Here, the power receiving device incorporates a 25 kΩ resistor internally for detection. The L2 switch 5, which is a PSE, applies two different voltages and measures the current in order to confirm whether the connected device is a power receiving device. When the current value corresponding to 25 kΩ is detected, the L2 switch 5 determines that the connected device is a power receiving device. The L2 switch 5 transmits, to the router 2, information on whether the connected terminal 7 is a power receiving device. As a result, the determination unit 31 can determine whether the terminal 7 is a power receiving device receiving power by PoE from the information on whether the device is a power receiving device.

  One of the information used by the determination unit 31 for the determination is the information stored in the classification condition storage unit 61 as described above. In this example, the classification condition storage unit 61 stores, as terminal related information, MAC address information, information on a communication protocol, and information on whether it is a power receiving device, but the information to be stored is limited to these. Instead, it may be information on the amount of communication or information on the direction of communication.

  When the terminal 7 is a microphone or a speaker, voice communication is performed with another terminal 7. In voice communication, mainly H. H.323 or SIP is used. The method of determining whether SIP is used is as described above. H. In H.323, RTP and RTCP are used. The method of determining whether RTP or RTCP is used is as described above.

  And H. When it is known from H.323 or SIP that a certain terminal 7 is a microphone or a speaker, the determination unit 31 determines which device of the microphone or the speaker is the device from the information on the direction of communication. The microphone converts the sound into an electrical signal (analog signal). Then, after converting this analog signal into a digital signal, it is divided into predetermined units and transmitted as an audio packet to the speaker side. On the other hand, the speaker takes out a digital signal from the received voice packet, converts it into an electrical signal (analog signal) and then converts it into sound. That is, an audio packet is transmitted from the microphone side, and an audio packet is transmitted to the speaker side. Therefore, the determination unit 31 determines that the terminal 7 on the side to which the voice packet is transmitted is a microphone, and determines that the terminal 7 on the side to which the voice packet is transmitted is a speaker.

  One of the information used by the determination unit 31 for the determination is the terminal related information received by the reception unit 39 as described above. The terminal related information includes information on the communication of the terminal 7. Information on the communication of the terminal 7 can be acquired only after communication between the terminals 7 is performed. When the communication between the terminals 7 is through the router 2, the receiving unit 39 of the router 2 can receive the information on the communication of the terminal 7 from the packet transmitted by the terminal 7.

  On the other hand, when communication is performed between the terminal 7a and the terminal 7b, communication is performed without passing through the router 2. However, in this case, communication is performed via the L3 switch 3. Therefore, the reception unit 39 of the router 2 can receive information on the communication of the terminals 7a and 7b from the L3 switch 3 between the router 2 and the terminals. Then, the determination unit 31 determines the classification of the device to which the terminal 7 belongs based on the information on the communication from the L3 switch 3 to the terminal 7a and the terminal 7b between the router 2 and the terminal. When communication is performed between the terminal 7 b and the terminal 7 c, communication is performed via the L2 switch 5 b without using the L3 switch 3. Therefore, the receiving unit 39 of the router 2 can receive information related to the communication of the terminals 7b and 7c from the L2 switch 5b between the router 2 and the terminals. Then, the determination unit 31 determines the classification of the device to which the terminal 7 belongs based on the information on the communication from the L2 switch 5b to the terminal 7b and the terminal 7c between the router 2 and the terminal.

  As described above, by providing the determination unit 31, the router 2 can connect the terminal 7 to an L2 switch or the like to determine the classification of the device to which the terminal 7 belongs. The router 2 may further include an output unit 37 to output information on classification.

  The setting unit 33 sets the terminal related information and the classification of the device to which the terminal 7 belongs in association with the setting of the user. For example, when the terminal of maker C is a wireless AP as a terminal under the management of router 2, setting unit 33 sets terminal related information that "maker is company C" and "wireless AP" according to the setting of the user. The classification of the device to which the terminal 7 belongs is correlated and set. When the setting unit 33 sets in this manner, the terminal related information may be stored in the classification condition storage unit 61 in association with the classification of the device to which the terminal 7 belongs.

  The setting unit 33 may set information used for the determination of the determination unit 31 according to the selection of the user. In FIG. 3, the first condition 101, the second condition 103, and the third condition 105 are stored in the classification condition storage unit 61. However, any one may be reduced as information used for the determination of the determination unit 31. Alternatively, conditions other than the three conditions may be added and set as information used for the determination of the determination unit 31. Further, the setting unit 33 may set the priority among the conditions according to the selection of the user. Thus, by providing the setting unit 33 in the router 2, the user can select the device selection method, and the degree of freedom according to the application is improved.

  The identifying unit 35 identifies the connection position of the terminal 7 under management from the route information. Here, the route information means information indicating a route from the router 2. Referring to FIG. 1, the path information of the L3 switch 3 is "Lan 1: 1". This means that the L3 switch 3 is connected to the port number 1 of the router 2. If the port number changes, the last number changes. That is, when the device is connected to the port number n (n is an arbitrary integer) of the router 2, the route information of the device is “Lan1: n”. The path information of the L2 switch 5a is "Lan 1: 1-1". This means that the L2 switch 5a is connected to the port number 1 of the L3 switch 3 connected to the port number 1 of the router 2. Similarly, since the path information of the L2 switch 5b is "Lan1: 1-3", it is understood that the L2 switch 5b is connected to the port number 3 of the L3 switch 3. Similarly, since the path information of the terminal 7 b is “Lan 1: 1-3-1”, it can be understood that the terminal 7 b is connected to the port number 1 of the L2 switch 5 b. These pieces of route information are set in association with the MAC address table.

  The output unit 37 outputs information on the classification in response to the request. The output unit 37 may also output an image representing the connection relationship of the terminal 7 and information on the classification as an image. For example, when a signal requesting image output is received from an external display device, the output unit 37 outputs an image, and the image is displayed on the external display device. Here, FIG. 4 is a figure which shows the example of an image which the output part of the communication relay apparatus based on one Embodiment of this invention displays on an external display apparatus. Referring to FIG. 4, in the L2 switch 405a, the presence of the IP camera icon 407a indicates that the IP camera is connected. Similarly, the L2 switch 405b has a recorder icon 407b, a recorder is an IP phone icon 407c, an IP telephone has a wireless AP icon 407d, and a wireless AP has a server icon 407e. It is displayed that the servers are connected. The icon of the connected IP camera or the like may be stored in the storage unit 60 in association with the product classification information. Further, in the upper right of the display unit 50, an image in which the route information, the MAC address, the maker name, and the product classification are associated is displayed. Thus, only by connecting the terminal 7 to the L2 switch 5 or the like, the output unit 37 outputs an image, and the information on the classification of the device to which the terminal belongs is displayed as an image on the external display device. Can save effort.

  The operation unit 40 outputs, to the control unit 30, a signal corresponding to an operation input by the user using an operation button or the like. The operation button may be, for example, an operator including a power switch, a cursor key, and the like, which receives an instruction of the user. The display unit 50 is a display device such as a liquid crystal display or an organic EL display. The router 2 may not have the operation unit 40 and the display unit 50. In this case, functions corresponding to the operation unit 40 and the display unit 50 may be substituted in the external device connected to the router 2.

  The connection unit 70 is an interface for connecting to the above-described L3 switch 3 or the like. In this example, the connection between the connection unit 70 and the L3 switch 3 may be wired or wireless as described above. The above is the description of the router 2.

  The minimum configuration of the router 2 is the reception unit 39 and the determination unit 31 enclosed by broken lines in FIG. 2, and other configurations can be added as appropriate.

[Operation flow]
Next, the operation flow of the router (communication relay device) 2 will be described using FIG. FIG. 5 is a diagram showing an example of an operation flow of the communication relay device according to the embodiment of the present invention.

  First, when the terminal 7 is connected to the port of the L2 switch 5, the flow starts. This flow is performed for each of the connected terminals 7. Then, the receiving unit 39 determines whether the MAC address of the terminal 7 and information regarding whether the terminal 7 is a power receiving device have been received (step S101). When the receiving unit 39 receives these pieces of information (in the case of Yes in step S101), the determining unit 31 compares the information received by the receiving unit 39 with the table of the classification condition storage unit 61 to classify terminals. It is determined whether determination is possible (step S103). On the other hand, when the receiving unit 39 has not received the MAC address of the terminal 7 and the information regarding whether the terminal 7 is a power receiving device (No in step S101), step S101 loops.

  Next, when the classification of the terminal can be determined (Yes in step S103), the determination unit 31 determines the classification of the device to which the terminal belongs (step S109). For example, in the example of FIG. 3, if the MAC address received by the receiving unit 39 is “maker is company C”, the determination can be made only with the first condition 101.

  On the other hand, when the determination unit 31 can not determine the classification of the terminal only when the reception unit 39 receives the MAC address of the terminal 7 and the information regarding whether the terminal 7 is a power receiving device (No in step S103) It is determined whether the receiving unit 39 has received information on the communication of the terminal (step S105). When the receiving unit 39 receives the information on the communication of the terminal (in the case of Yes in step S105), the determining unit 31 compares the information received by the receiving unit 39 with the table of the classification condition storage unit 61, It is determined whether the classification can be determined (step S107). On the other hand, when the receiving unit 39 has not received the information on the communication of the terminal (No in step S105), step S105 loops.

  If the classification of the terminal can be determined (in the case of Yes in step S107), the determination unit 31 determines the classification of the device to which the terminal belongs (step S109). On the other hand, when the determination unit 31 can not determine the classification of the terminal (in the case of No in step S107), the determination unit 31 determines that the determination of the classification of the terminal is impossible (step S111). Then, the determination result is stored in the classification result storage unit 63 (step S113), and the process ends. An example of the operation flow of the router 2 has been described above. However, the operation flow of the router 2 is not limited to this. It changes according to what condition is memorize | stored in the classification condition memory | storage part 61 by what kind of priority.

<Modification 1>
The above embodiments have been described on the premise that the communication relay device is a router. However, the communication relay device may be a wireless AP or a LAN switch. That is, the wireless AP or L3 switch 3 may have the function of the router 2 described above. In this case, the configuration is approximately the same. Therefore, the detailed description of the overlapping points is omitted.

  When the communication relay device is the L3 switch in FIG. 1, communication between the terminal 7a and the terminal 7b is performed via the L3 switch. Therefore, the reception unit of the L3 switch can receive the information on the communication of the terminal 7 from the packet transmitted by the terminal 7. Then, the determination unit of the L3 switch can determine the classification of the device to which the terminal 7 belongs based on the information related to the communication acquired from the packet transmitted by the terminal 7.

  Also in this modification, the same effect as the above embodiment can be obtained.

<Modification 2>
The communication relay device 2 of the above embodiment can also be realized by the following hardware configuration. FIG. 6 is a block diagram showing a configuration example of a communication relay device according to a modification of the present invention. The description of the same configuration as that of the communication relay device 2 is omitted. As shown in FIG. 6, the communication relay device 2A includes a determination circuit 31A and a reception circuit 39A. The determination circuit 31A corresponds to the determination unit 31 of the communication relay device 2, and the reception circuit 39A corresponds to the reception circuit 39 of the communication relay device 2. Also in the present modification, circuits corresponding to the setting unit 33, the specifying unit 35, and the output unit 37 of the communication relay device 2 may be added as appropriate. Also in this modification, the same effect as the above embodiment can be obtained.

<Modification 3>
The communication relay device 2 of the above embodiment can also be realized by the following software configuration. FIG. 7 is a block diagram showing a configuration example of a communication relay device according to a modification of the present invention. As shown in FIG. 7, a determination program 64B and a reception program 65B are stored in the storage unit 60B of the communication relay device 2B. Unlike the communication relay device 2, it is divided into a plurality of programs. The determination unit 31B of the CPU executes the determination program 64B stored in the storage unit 60B to perform the determination process. The determination unit 31 B corresponds to the determination unit 31 of the communication relay device 2. The reception unit 39B of the CPU executes the reception program 65B stored in the storage unit 60B to perform terminal association including at least one of information on communication of a terminal under management and information on whether the terminal is a power receiving device Receive information The receiver 39 B corresponds to the receiver 39 of the communication relay device 2. Also in this modification, the setting program, the specific program, and the output program may be stored in the storage unit 60B, and the setting unit, the specifying unit, and the output unit of the CPU may be added as appropriate. The setting unit, the specifying unit, and the output unit of the CPU correspond to the setting unit 33, the specifying unit 35, and the output unit 37 of the communication relay device 2, respectively. Also in this modification, the same effect as the above embodiment can be obtained.

  In addition, this invention is not limited to said embodiment, It is possible to change suitably in the range which does not deviate from the meaning.

1: Communication system 2: Communication relay device 3: L3 switch 5: L2 switch 7: Terminal 10: Communication network 11: LAN
30: control unit 31: determination unit 33: setting unit 35: identification unit 39: reception unit 40: operation unit 50: display unit 60: storage unit 61: classification condition storage unit 63: classification result storage unit 70: connection unit 80: Acquisition unit 90: Communication unit

Claims (11)

A receiving unit that receives terminal related information including at least one of information on communication of a terminal under management and information on whether the terminal is a power receiving device;
A table storing information in which the terminal related information is associated with the classification of the device to which the terminal belongs, and a determination unit which compares the received terminal related information with the received terminal related information to determine the classification of the device to which the terminal belongs;
A communication relay device comprising:   The communication relay device according to claim 1, further comprising an output unit that outputs information on the classification in response to a request.   The communication relay device according to claim 1, wherein the terminal related information further includes identification information of the terminal.   The communication relay apparatus according to any one of claims 1 to 3, wherein the information on the communication is information on a communication protocol.   The communication relay according to any one of claims 1 to 4, further comprising: a setting unit configured to associate the terminal related information with the classification of the device to which the terminal belongs by setting of the user. apparatus.   The communication relay apparatus according to claim 5, wherein the setting unit sets information used for the determination of the determination unit according to a user selection. It further comprises a specification unit for specifying the connection position of the terminal under management from the route information,
The communication relay apparatus according to claim 1, wherein the output unit associates the information on the classification with the connection position of the terminal and outputs the information.   7. The communication relay apparatus according to claim 6, wherein the output unit outputs an image representing a connection relationship of the terminal and information on the classification as an image.   The communication relay device is a router, and the determination unit is a device to which the terminal belongs based on a packet transmitted by the terminal or information related to the communication acquired from a LAN switch between the router and the terminal. The communication relay device according to any one of claims 1 to 8, wherein the classification is determined.   The communication relay apparatus is a LAN switch, and the determination unit determines the classification of the device to which the terminal belongs based on the information related to the communication acquired from the packet transmitted by the terminal. The communication relay apparatus according to any one of claims 8 to 10. Receiving terminal related information including at least one of information on communication of a terminal under management and information on whether the terminal is a power receiving device,
A determination method of determining a classification of a device to which the terminal belongs by comparing a table storing information in which the terminal related information is associated with a classification of a device to which the terminal belongs with the received terminal related information.