JPH1023058A - Setting method for network equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set automatically a protocol address of a network equipment, without the need for a server or the like. SOLUTION: In the initial introduction of this method to a network, a network equipment 10 is set, in which a prescribed setting to make data communication available is conducted. In the first communication, an address resolution protocol(ARP) control section 11 learns a target protocol address, included in an ARP request packet received from a setting device 20, a protocol address control section 12 sets the protocol address to its own station protocol address table 14 as a protocol address of its own equipment, and setting data at the initial introduction is communicated, based on the acquired protocol address.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network device setting method for performing a predetermined setting for enabling data communication when the network device is introduced into a network.

[0002]

2. Related Background Art Conventionally, this type of network equipment is composed of, for example, a router or the like, and is connected to a network such as a WAN or a LAN to perform data communication with another device (router or terminal device). In the network device, a technology for performing various settings via the network when the device is introduced to a network is widely used. That is, when performing various settings via a network, it is necessary to assign a protocol address to a network device in order to perform data communication for the various settings.

Therefore, as a conventional method, for example, RA
RP (Reverse Address Resolution Protocol) and DHC
The address is automatically assigned by inquiring the address server using P (Dynamic Host Configuration Protocol), or the address is manually assigned by a method other than via a network. That is, in the automatic acquisition of the address, the network device inquires the address server of the protocol address using the physical address of the device itself, and automatically obtains the protocol address of the device from the address server.

[0004]

However, in the above method, the protocol address can be automatically acquired by either of the RARP and the DHCP, but in any case, the address server is connected to the same network as the network device. It is necessary to keep. For this reason, the above-mentioned method has problems that the production cost is high and software dedicated to the address server is required.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide a network device setting method capable of automatically setting a protocol address of a network device without requiring a server or the like. I do.

[0006]

In order to achieve the above object, according to the present invention, in an initial setting method for a network device for performing a predetermined setting for enabling data communication at the time of initial introduction to a network, the first method is to receive The target protocol address (protocol address on the network set to the network device or a temporary protocol address on the network) included in the ARP request packet for requesting the address determination is learned, and the protocol address is set to the protocol address of the own device. A setting method of a network device that enables various settings from a setting device having no server function, such as a personal computer, is provided by setting as.

The network device uses the target protocol address as a protocol address of its own device for communication at the time of initial introduction, and obtains data for enabling data communication with another device from the setting device.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for setting a network device according to the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram showing a configuration of a network device using the setting method according to the present invention. In the figure, a network device 10 is composed of, for example, a router and has an interface 1 connected to a setting device 20, an ARP control unit 11 connected to the interface 1, a non-volatile memory connected to the ARP control unit 11, And a protocol address control unit 12 having
2 is connected to a local station protocol address table 14 connected to the local station 2. In addition to the interface 1, the network device 10 includes, for example, a LAN and an ISDN.
(Integrated digital communication network), a plurality of interfaces connected to an HSD (high-speed digital line) and the like.

The interface 1 is connected to the setting device 20 at the time of initial introduction to a network such as a LAN, and receives an ARP request packet transmitted from the setting device 20 by broadcast. The ARP request packet includes, as shown in FIG. 2, for example, a MAC header portion including a destination address and a source address, which are MAC addresses, and a type indicating a protocol type, a type indicating a data type, and a sender indicating a MAC address. It has an ARP header section including a hardware address, a target hardware address, a sender protocol address which is an Internet protocol address (hereinafter, referred to as an “IP address”), and a target protocol address.

In this embodiment, the M of the ARP request packet
In the AC header portion, a broadcast address is set as the destination address indicating the transmission destination of the packet, an address of the setting device 20 is set as the source address indicating the transmission source, and data indicating the ARP is set as the type. Also, A
In the RP header section, the type indicates data indicating an address request, the sender hardware address indicating a transmission source indicates the address of the setting device 20, and the target hardware address indicating a transmission destination indicates "0" indicating unknown. ,
The address of the setting device 20 is set as the sender protocol address indicating the transmission source, and the address of the network device 10 is set as the target protocol address indicating the transmission destination. Note that the setting device 20 uses the ARP
When transmitting the request packet, the network device 1
A protocol address on the network set to 0 or a temporary protocol address on the network is set as a target protocol address.

When the ARP request packet is received, the ARP control unit 11 extracts a target protocol address from the packet and sends the target protocol address to the protocol address control unit 12. In addition, the ARP control unit 11 transmits a response packet to the ARP request packet using the extracted protocol address.

The structure of the ARP response packet is the same as that of the ARP request packet shown in FIG. In the MAC header portion of the ARP response packet in the present embodiment, the MAC address of the setting device 20 is set as the destination address, the MAC address of the network device 10 is set as the source address, and data indicating ARP is set as the type. In the ARP header section, the type indicates data indicating an address response, the sender hardware address indicates the hardware address of the network device 10, the target hardware address indicates the hardware address of the setting device 20, and the sender protocol address indicates the network address. The protocol address of the setting device 20 is set as the address of the device 10 (the target protocol address of the ARP request packet) and the target protocol address, respectively.

The protocol address control section 12 registers the target protocol address in the local station protocol address table 14 as the protocol address of its own device. Further, the protocol address control unit 12 uses the data registered in the local station protocol address table 14 to transmit setting data for enabling data communication at the time of initial introduction to the network.
And stored in the nonvolatile memory 13. In addition,
In the initial setting, the protocol address control unit 12 performs data communication based on the data registered in the own-station protocol address table 14, but after the initial setting, the contents stored in the nonvolatile memory 13 Based on this, the local station protocol address table 14 is created, and data communication is performed.

The own station protocol address table 14
As shown in FIG. 3, each interface provided in the network device 10, in the embodiment, the number of each interface 1, 2, 3,... It consists of a protocol address. When the ARP request packet is received, the target protocol address of the ARP request packet can be registered corresponding to each interface number.

Next, an address setting operation at the time of initial setting of the network device 10 will be described. Here, as shown in FIG.
In addition to the interface 1 connected to the data communication devices 30 to 50, interfaces 2 to 4 are respectively connected to the other data communication devices 30 to 50 via, for example, a LAN or ISDN. Each of the data communication devices 30 to 50 includes a router, a terminal device, and the like. In addition, the network device 10 has a protocol address “19” corresponding to the interface 1.
2,168,1,1 "is set.

As shown in FIG. 5, for example, in the non-volatile memory 13, each interface number provided in the network device 10, its own IP protocol address corresponding to the interface number, a mask address, It is assumed that a broadcast address and a destination address are registered. First, when the setting device 20 is connected to the network device 10, the setting device 20 sets a protocol address on the network set in the network device 10 or a temporary protocol address on the network as a target protocol address, and sets an ARP request packet. And sends the ARP request packet to the network device 10 by broadcast. In this case, LA
Since only the network device 10 and the setting device 20 are connected on N, the target protocol address of the ARP request packet can be set as the protocol address on the network set in the network device 10, or It is also possible to set the above temporary protocol address.

In the network device 10, when the ARP request packet is received by the interface 1,
The ARP control unit 11 extracts the target protocol from the packet and sends the target protocol to the protocol address control unit 12. The protocol address control unit 12 uses this target protocol address information as its own protocol address corresponding to the interface 1, and
Register to 4.

Further, the ARP control section 11
For the request packet, an ARP response packet is created in which the own station protocol address (target protocol address) acquired from the ARP request packet is used as the sender protocol address. Then, the ARP control unit 11
The ARP response packet is returned to the setting device 20 via the interface 1.

Thereafter, the protocol address control unit 12 performs the following based on the obtained own station protocol address.
For example, data communication is performed with the setting device 20 via a telnet, and setting data for enabling data communication with another data communication device via the network is acquired from the setting device 20. Protocol address control unit 12
Stores the acquired setting data in the nonvolatile memory 13.
(See FIG. 5). Protocol address control unit 1
In No. 2, thereafter, data communication can be performed with another data communication device based on the protocol address registered in the nonvolatile memory 13.

Therefore, in this embodiment, setting data for enabling data communication with another data communication device is acquired using the target protocol address in the ARP request packet as the own station protocol address. ,
Various settings from the network can be made possible without using a protocol for using a server or the like. As a result, in the present embodiment, various settings at the time of initial installation can be performed in a device such as a personal computer having no server function.

In this embodiment, even when there is no server or the like, there is no need for manual initial setting.
The hardware configuration for manual setting can be omitted, and the manufacturing cost can be reduced.

[0022]

As described above, according to the present invention, in the method of setting a network device for performing a predetermined setting for enabling data communication at the time of initial introduction to a network, the first received address determination is requested. Target protocol address included in the packet (protocol address on the network set to the network device or temporary protocol address on the network)
Is learned, and the protocol address is set as the protocol address of the own device. Therefore, the protocol address of the network device can be automatically set without requiring a server or the like.

According to a second aspect, the network device includes:
Since the target protocol address set as the protocol address of the own device is used as a protocol address for communication at the time of initial introduction, data for enabling data communication with another device can be obtained from the setting device.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a configuration of a network device using a setting method according to the present invention.

FIG. 2 is a configuration diagram showing a schematic configuration of a packet used in FIG. 1;

FIG. 3 is a configuration diagram showing a configuration of a local station protocol address table shown in FIG. 1;

FIG. 4 is a diagram illustrating an example of connection of the network devices illustrated in FIG. 1;

FIG. 5 is a configuration diagram showing a configuration example of a nonvolatile memory in the case of FIG. 4;

[Explanation of symbols]

 1-4 interface 10 network equipment 11 ARP controller 12 protocol address controller 13 nonvolatile memory 14 own station protocol address table 20 setting device 30-50 data communication device

Claims (3)

[Claims] 1. A method for setting a network device for performing a predetermined setting for enabling data communication at the time of initial introduction to a network, comprising learning a target protocol address included in a packet firstly requested to determine an address. And setting the protocol address as a protocol address of the own device. 2. The setting of the network device according to claim 1, wherein the network device uses the target protocol address set as a protocol address of the own device as a protocol address for communication at the time of initial introduction. Method. 3. The target protocol address is:
3. The network device setting method according to claim 1, comprising a protocol address on a network set to the network device or a temporary protocol address on the network.