JPH06141033A - Lan managing system - Google Patents

Abstract

PURPOSE:To easily and surely perform network management by automatically attaching a network address on a client device from which the network address is requested by address managing service. CONSTITUTION:An address managing server 10 stores the range of the network address to be attached on the client device, a host device name, and the network address in its own device as a pair of tables. The server 10 registers a new network address on the table of its own device when the attachment of the network address is requested from the client devices 12a-12e. Following that, the network address is notified to and attached on the devices 12a-12e from which a request is issued via a LAN transmission line 14. Thereby, the network address can automatically be attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a LAN network management system which is used in a LAN system in which a plurality of LANs are connected and which is automatically assigned a network address by an address management server.

[0002]

2. Description of the Related Art In a conventional LAN system, when assigning a network address, an administrator of a client device makes an application to the network administrator by a document, verbal or electronic mail, and based on this application It is common for the network administrator to give the network address.

As an example of giving this kind of network address, "Broadband LAN host computer line establishment system" disclosed in Japanese Patent Laid-Open No. 046040/1990.
Can be mentioned.

This "broadband LAN host computer line establishment system" is a method of joining a partner terminal by installing one host computer line management terminal joining device in one host computer when communicating with the host computer. Lines are established with the host computer without being aware of device addresses and port numbers.

[0005]

However, in the above conventional example, it is necessary to give a large number of network addresses as the network scale increases. Therefore, the burden on the network administrator increases, and it is necessary to increase the number of network administrators to solve this problem. Also,
When a large number of network addresses are changed at one time due to movement of the device, human error such as double assignment of addresses is likely to occur.

The present invention solves the problems in the prior art as described above. The network management can be performed easily and surely, and the human error, the failure recovery time, and the work load on the network administrator are reduced. It is intended to provide a LAN network management system.

[0007]

In order to achieve the above object, a LAN network management system according to the invention of claim 1 is
An address management server that stores a host device name and a network address as a pair and that gives the stored network address, a client device that transmits and receives data, and a host device that controls data transmission with the client device, An address management server, a client device, and a LAN device are connected to the host device, and the host device name and network are used by the address management server in response to a network address assignment request broadcast from the client device with its own host device name. The configuration is such that the address is registered and the network address is returned and given to the client device that requested the network address.

According to a second aspect of the present invention, a plurality of networks having the configuration of the first aspect are connected by a router, and a client device in one network requests a notification of a network address of a client device in another network. The received address management server is configured to obtain the network address of the client device in another network by transmission from the address management server arranged in the other network.

Further, in claim 3, one main address management server, a plurality of sub-address management servers connected to the one main address management server by communication lines, and communication lines individually connected to the plurality of sub-address management servers. And a plurality of address management servers that manage network addresses of a plurality of client devices connected to each other by one network.

[0010]

According to the first aspect of the present invention having such a configuration, the address management server performs the address management task of automatically assigning a network address.

In the second aspect, the management work of the network address of the client device of the other network is performed by the transmission processing between the address management servers.

According to a third aspect of the present invention, a plurality of hierarchical address management servers perform an address management task of automatically assigning a network address in a large-scale network. As a result, network management can be performed easily and reliably, and human error, failure recovery time, and work load on the network administrator are reduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a LAN network management system of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a first embodiment of a LAN network management system corresponding to the first aspect. In FIG. 1, in this example, an address management server 10 for giving a network address, client devices 12a, 12b, 12c for transmitting and receiving data,
12d and 12e, the address management server 10 and the client devices 12a to 12e are connected to each other, and a LAN transmission line 14 for transmitting data between them is provided. Further, the client devices 12 a to 12 are connected to the LAN transmission line 14.
A host device (not shown) that controls data transmission to and from e is connected.

The address management server 10 has a storage medium in which a range of network addresses to be given to client devices, a host device name, and a network address are stored as a pair of tables in its own device.

Client devices (12a-12)
e) When a large number of networks are constructed, a plurality of address management servers (10) are arranged. Therefore, it is necessary to determine the network address to be given for each address management server (10) in advance. For example, in the address management server 10, the host device [1]
And the network address "○○○○ 1", the host device [2] and the network address "○○○○ 2", the host device [3] and the network address "○○○○ 3", and the empty network address "○○○" ○○ 4 ”, and
Network addresses with a maximum of 30 network addresses are stored as a pair of tables.

Next, the operation of the configuration of the first embodiment will be described. FIG. 2 is a sequence diagram of registering a network address and notifying the client device in the operation of the first embodiment.

1 and 2, in the address management server 10, any of the client devices (12a-1
2e), from the broadcast of the request for network address assignment with the host device name attached through the LAN transmission line 14, the range of network addresses to be assigned to the client devices (12a to 12e) stored in the own device and the host device A new network address is registered in a table of a name and a network address.
Then, the requested client device (12a-12
In step e), the network address is notified and given through the LAN transmission line 14.

FIG. 3 is a block diagram showing the configuration of the second embodiment corresponding to the second aspect. In the second embodiment, the network address is notified between other networks. In FIG. 3, this example shows two networks 2
0,22, and two networks 20,22
There is provided a router 24 for connecting the. The network 20 includes an address management server 26, a client device 27, and a LAN transmission line 2 for transmitting data between the address management server 26 and the client device 27.
8 and. The network 22 has an address management server 30, a client device 32, and a LAN transmission path 34 for transmitting data between the address management server 30 and the client device 32.

Next, the operation of the second embodiment will be described. In FIG. 3, the client device 32 is shown here.
From the client device 27. A packet inquiring the network address of the client device 27 of the network 20 is transmitted from the client device 32 (information transmission route [1] in FIG. 3). Next, the address management server 30 receiving this inquiry through the LAN transmission line 34 does not have the client device 27 in its own network 22, so that the address management server 26 of another network 20 receives the LAN transmission line 34 and the router 24. And LAN transmission line 28
Is inquired through (information transmission route [2] in FIG. 3).

Then, the address management server 26 of the network 20 in which the client device 27 is present responds to the inquiry from the client device 32 about the network address by transmitting the network address of the client device 27 to the LAN transmission line 28, the router 24 and the LAN transmission line 34. To the address management server 30 (in FIG. 3,
Information transmission route [3]).

The address management server 30 which has obtained the network address of this notification notifies the client device 32 through the LAN transmission line 34 (information transmission route [4] in FIG. 3).

Further, a third embodiment corresponding to claim 3 will be described. In the third embodiment, the address management server is hierarchized.

FIG. 4 is a block diagram showing the configuration of a third embodiment in which the address management server is hierarchized. In FIG. 4, this example shows the main address management server 40.
And the sub-address management servers 42, 43, 4 connected to the main address management server 40 by a communication line.
4 and 45. Further, in this example, the address management servers 47, 48, 49 connected to the sub-address management server 42 via a communication line, the address management servers 51, 52 connected to the sub-address management server 43 via a communication line, and the sub-address management server Address management server 53, 54 connected to 44 by a communication line
Further, it has address management servers 55 and 56 connected to the sub-address management server 45 by a communication line.

Next, the operation of the third embodiment will be described. In FIG. 4, the main address management server 4
0 manages network addresses of a plurality of predetermined networks. At this time, the sub-address management servers 42 to 45 are instructed of a plurality of networks managed by the individual sub-address management servers 42 to 45 and a range of network addresses assigned by the plurality of networks. This sub-address management server 42-45
Based on the instruction, the address management servers 47 to 49, 51 to 56 arranged for each network give network addresses in their own networks. This address management server 47-49, 51-56
The assignment of the network address in Fig. 1, Fig. 2, Fig. 3
The process is the same as that described above.

[0026]

As is apparent from the above description, the address management server performs the address management work of automatically assigning the network address, and the address management work of the network address of the client device of another network is performed. It is done by transmission processing between servers. In addition, because multiple layered address management servers perform address management tasks that automatically assign network addresses in large-scale networks, network management can be performed easily and reliably for human error and failure. This has the effect of reducing the recovery time and the work load on the network administrator.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration in a first embodiment of a LAN network management system of the present invention.

FIG. 2 is a sequence diagram of registering a network address and notifying a client device in the operation of the first embodiment.

FIG. 3 is a block diagram showing a configuration of a second embodiment for notifying a network address between other networks.

FIG. 4 is a block diagram showing a configuration of a third embodiment in which an address management server is hierarchized.

[Explanation of symbols]

10, 26, 30, 47-49, 51-56 Address management server 12a-12e, 27, 32 Client device 14, 28, 34 LAN transmission line 20, 22 Network 24 Router 40 Main address management server 42-45 Sub address management server

Claims (3)

[Claims] 1. A host device name and a network address are stored as a pair, and an address management server that assigns the stored network address, a client device that transmits and receives data, and data transmission between the client device are performed. It has a host device to control, an address management server, a client device, and a LAN transmission line to which the host device is connected. The client device responds to the broadcast of the network address assignment request with its own host device name. A LAN network management method characterized in that a host device name and a network address are registered in a management server, and the network address is returned and given to a client device that has requested the network address. 2. An address management server, wherein a plurality of networks having the configuration according to claim 1 are connected by a router, and a client device in one network receives a notification request of a network address of a client device in another network. Is a LAN network management method, wherein the network address of a client device in another network is obtained by transmission from an address management server arranged in the other network. 3. A main address management server,
A plurality of sub-address management servers connected to this one main address management server by a communication line, and a plurality of sub-address management servers individually connected by a communication line,
A LAN network management method comprising a plurality of address management servers for managing network addresses of a plurality of client devices connected to one network.