JP2001251337A - Method for revising setting of router - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method by which a network manager needs not to visit a router installed site and reset setting of the router even when revision contents include errors resulting that a remote host cannot access the router in the case of revising the setting of the router from the remote host via a network. SOLUTION: In the case that the host at a remote place via a network revises the setting of the route whose setting is going to be revised, a setting file of the route is stored in other storage area and then the setting of the router is revised. When the router is rebooted, a timer having a prescribed timer time is started. The host at the remote place via the network conducts a connection test and no connection performance is lost, the timer of the router is stopped. When the connection performance is lost, the timer of the router expires and the router is rebooted with a setting having been stored and before the setting is revised.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a router, and more particularly to a method of changing a router setting from a remote place via a network.

[0002]

2. Description of the Related Art Conventionally, small networks have been used.
A router is used to form a large-scale WAN (Wide Area Network) as a whole by connecting LANs (Local Area Networks) to each other.

In recent years, as networks have become widespread and have become larger and dispersed in various places, when changing or maintaining router settings, remote operations must be performed from a remote host via the network itself. Is used.

[0004]

As described above, the setting of the router can be changed by a remote operation from a remote host via a network.

However, there is a possibility that the contents to be changed are incorrect. At this time, in the worst case, the router itself may not be accessible.
As described above, when the remote host becomes inaccessible, the network administrator must go to the site where the router is installed and correct the settings.

According to the present invention, even if an error is found in the contents of changing the setting of the router and the host itself at a remote location becomes inaccessible to the router itself, the network administrator can set up the local site where the router is installed. The task is to avoid having to go and change the settings.

[0007]

According to the present invention, there is provided a method for changing the setting of a router whose setting is to be changed from a remote host via a network, comprising the steps of: Storing in another storage area, changing the router settings, rebooting, starting a timer for a certain period of time after rebooting, performing a connection test from a remote host via a network, If the connectivity after the setting change is not impaired, a step of stopping the timer of the router by a signal from a remote host via the network, and if the connectivity after the setting change is impaired, Resetting the setting before the setting change stored in another storage area due to timeout of the timer of the router, and rebooting. Ete setting change process of the router that is characterized by comprising obtained.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a state in which LANs, which are small-scale networks, are connected to each other by routers to form a large-scale WAN as a whole. In FIG.
The devices 3 and 17 are connected to each other via a public line network 15, and constitute a WAN 14 as a whole. As shown in the figure, LANs 13 and 17 are connected to public network 15 by routers 12 and 16.
Is connected to Then, the routers 12 and 16 perform various network processes such as a routing process. In order to configure one large-scale network as a whole, various settings such as an IP address, a host name, and a netmask are made in the routers 12 and 16.

FIG. 3 is a block diagram of a router. In FIG. 3, the router is a WAN interface (I / F) 31, a relay processing unit 32 that performs a relay process, a LAN interface (I / F) 33,
The control unit 34 controls writing of settings to the memory 35 and reading of settings from the memory 35, and a memory 35 as storage means for storing settings. The memory 35 has a storage area 36 for storing normal settings and a storage area 37 for storing settings before the setting is changed.

FIG. 2 is a flowchart showing an operation flow when the setting of the remote router 16 is changed from the host 11 via the public line network 15 in FIG.

Hereinafter, this embodiment will be described with reference to FIG.

In FIG. 2, first, a host 1 at a remote location
By the operation from 1, the setting file of the router 16 whose setting is to be changed is stored in the storage area 37 for storing the setting before the setting change (step S21). Then, the remote host 1
The setting of the router 16 is changed from 1 via the public line network 15 and rebooted (step S22). When the router 16 reboots with the new settings, the router 16 starts a timer for a certain period of time in anticipation of the time for performing the connection test (step S23).

In step S24, the remote host 11
A connection test is performed to determine whether or not the router 16 can be accessed. Connectivity test does not impair connectivity
If (the router 16 can be accessed), in step S25, a signal for canceling the timer is transmitted from the remote host 11 to the router 16, and when the router 16 receives the signal, the timer is stopped, and the router 16 stops the timer. The 16 settings are changed. If the connectivity is impaired (the router 16 cannot be accessed), the timer of the router 16 times out in step S26. After the timeout, in step S27, the router 16 returns the setting to the setting stored in the storage area 37 and reboots.

As described above, the method of changing the setting of the router according to the present embodiment is a method of changing the setting of a router whose setting is to be changed from a remote host via a network. Storing the configuration file before the configuration change in another storage area, changing the configuration of the router, rebooting, and starting a timer for a certain period of time after the reboot,
Perform a connection test from a remote host via the network, and if the connectivity after the setting change is not hindered,
A step of stopping the timer of the router by a signal from a remote host via a network, and, if the connectivity after the setting change is impaired, the timeout of the timer of the router causes another timer to be stored in another storage area. And restoring the stored settings before the setting change and rebooting.

Therefore, when the setting of the router is changed from a remote host via the network, the connection can be automatically established even if the change is incorrect and the router itself cannot be accessed. Returning to the state at the time, the network administrator can correct the router settings without going to the site where the router device is installed.

[0017]

As described above, according to the present invention, when changing the settings of the router, even if the contents to be changed include an error and cannot be accessed from a remote host, the automatic setting is performed. When the setting is changed from a remote host via the network, even if the router device cannot be accessed, the network administrator has installed the router device. There is no need to go to the site and change the router settings.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a configuration example of a network used in an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a flow when changing settings of a router device.

FIG. 3 is a block diagram of a router device used in the embodiment of the present invention.

[Explanation of symbols]

 11, 18 Host 12, 16 Router 13, 17 LAN (Local Area Network) 14 WAN (Wide Area Network) 15 Public line network 31 WAN interface (I / F) 32 Relay processing unit 33 LAN interface (I / F) 34 Control unit 35 Memory 36 Storage area 1 (stores normal settings) 37 Storage area 2 (stores settings before changing settings)

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Claims (1)

[Claims] 1. A method for changing a setting of a router whose setting is to be changed from a remote host via a network, comprising: storing a setting file before changing the setting of the router in another storage area; Changing the router settings and rebooting, starting a timer for a certain period of time after the reboot, performing a connection test from a remote host via a network, and impairing the connectivity after the setting change. If not,
Stopping the timer of the router by a signal from a remote host via a network, and, if the connectivity after the setting change is impaired, the timeout of the timer of the router causes another timer to be stored in another storage area. Restoring the stored settings before the setting change and rebooting the settings.