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DHCP Server

Table of Contents

This section describes the operation of the "DHCP Server" screen.
Here you can check the lease status of the DHCP server and add, edit, or delete settings.

Click [Service Settings] > [DHCP Server] on the side menu to open the "DHCP Server" screen.

DHCP Lease Status #

Display DHCP lease status #

Open the "Lease Status" tab to view the status of IP addresses leased from the interface where the DHCP server is configured.

NOTE

To use this feature, DHCP server settings on the relevant interface are required. Please refer to the following for details on how to configure the settings.
⇒ DHCP Server Configuration

DHCP Server Settings #

This section describes operations for viewing, adding, editing, and deleting DHCP server settings.

NOTE

Note that the DHCP server cannot be enabled when the DHCP relay setting is enabled.

Display a list of DHCP server settings #

Click on the "Settings" tab to view a list of DHCP server settings.

View DHCP server configuration details #

 ［ 設定 ］タブをクリックします。
Click [...] to the right of the DHCP server setting whose details you wish to check, and click [Details] in the menu that appears.
You can see the details of the DHCP server settings.

Add DHCP server settings #

 ［ 設定 ］タブをクリックし、［ 新規追加 ］ボタンをクリックします。

The "Add DHCP Server Settings" screen appears.

Select the interface to be used as the DHCP server and click Next.

Configurable interface names vary by product.

AI Edge Gateway: wan0, br0 to br9
Edge Gateway: eth0, br0 to br9
IoT Router: eth0 to eth1, br0 to br9
Compact Router: eth0
Compact Router with Wireless LAN: br0, wlan0～wlan1, lan0～lan1

Set the following items (1) to (3) for the basic information of the DHCP server and click [Next].

Click the toggle to enable or disable.
Set the range within which dynamic IP addresses are automatically assigned to clients.

Up to 256 address ranges can be set within the netmask range.

Specifies the subnet mask. The default value is 255.255.255.0.

For gateway information, set the following items (1) to (4) and click Next.

Specify the gateway address to be notified to the DHCP client side.
When "Auto" is selected, the IP address of the selected interface is used.
Specifies the IP address (IPv4) of the DNS server to be notified to the DHCP client.
When "Auto" is selected, the IP address of the selected interface is used.

Specify the DNS domain name to be notified to the DHCP client.

Domain names must be no longer than 253 characters. Domain names must begin and end with single-byte alphanumeric characters, and the rest of the domain name must consist of single-byte alphanumeric characters or "-" (hyphen) and ". (period).

Specify the IP address (IPv4) of the NTP server to be notified to the DHCP client.
When "Auto" is selected, the IP address of the selected interface is used.

Enter the DHCP lease expiration date and click Next.

The setting range is 1 to 86400 (seconds), with a default value of 60 to 86400 (seconds).

Confirm the information entered and click "Setup".

DHCP server settings are added.

Edit DHCP server settings #

Edit the registered DHCP server settings.

 ［ 設定 ］タブをクリックします。
Click [...] to the right of the DHCP server setting you wish to edit, then click Edit on the menu that appears.

The "Edit DHCP Server Settings" window appears.

Configure the settings in the "Edit DHCP Server Settings" window and click "Configure" to complete editing the DHCP server settings.

Delete DHCP server settings #

There are two ways to delete registered DHCP server settings: individually from the DHCP server settings operation menu, or by selecting multiple targets and then deleting them.

Delete individual DHCP server settings

 ［ 設定 ］タブをクリックします。
Click [...] to the right of the DHCP server setting you wish to delete and select [Delete] from the menu that appears.
［Click the "Delete" button.

The DHCP server setting is deleted.

Selecting and deleting multiple DHCP server settings

This method is used to delete a DHCP server setting after checking the check box for the DHCP server setting you wish to delete. This is useful for deleting multiple DHCP server settings at once.
You can also select only one DHCP server setting to delete.

［Click on the SETTINGS tab.
Click the checkbox to the left of the DHCP server setting you wish to delete, place a checkmark in the checkbox, and click the [Delete] button.
［Click the "Delete" button.

The DHCP server setting is deleted.

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