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Setting the DHCP server

Tomoko
  • Updated

This recipe explains the procedure for setting the DHCP server.

DHCP server

  • A DHCP server is a server that automatically issues the necessary information such as IP addresses to devices connected to the Internet.
  • Glossary > DHCP

Target devices

  • AG10/20
  • AR10/20
  • AC10 (As of 2022/7/4 only for the CLI)

Table of contents

Setting with the GUI

  1. Access the GUI with a Web browser.
    e.g.)  http://192.168.1.197

  2. Click [ Advanced setting/control ] – [ DHCP server setting ] on the side menu.

  3. On the [ DHCP server setting ] screen, click the [ Add new ] button.
    mceclip0.png
  4. Enter the fields required for configuring the static routing settings.
    ❶ Select the interface.
    The interface set as a DHCP server needs to be operated with a fixed IP address.
    ❷ Click the toggle to enable it.
    ❸ Specify the range of IP addresses assigned to clients.
    ❹ Specify the subnet mask.
    ❺ Set the gateway address, DNS server, domain, NTP server, and valid period respectively. (They work with the default value as well.)
    mceclip1.png
  5. After you complete configuring the settings, click [ Set ].

*As the settings that can be configured with the GUI are limited, configure more detailed settings from the CLI.

Setting with the CLI

  1. With amsh, transit to configuration mode. 
    admin@amnimo:~$ amsh
    amnimo$ enable
    password:
    amnimo#
    amnimo# configure
  2. Set the DHCP server for Interface eth0.
    The interface set as a DHCP server needs to be operated with a fixed IP address. 
    amnimo(cfg)# dhcp eth0 ← Configure the DHCP settings for eth0.
    amnimo(cfg-dhcp-eth0)# dynamic 192.168.3.20 192.168.3.40 ← Specify the range of dynamic IP addresses automatically assigned to clients.
    amnimo(cfg-dhcp-eth0)# netmask 255.255.255.0 ← Specify the subnet mask.
    amnimo(cfg-dhcp-eth0)# leasetime 600 3600 ← Specify the valid time for leasing IP addresses.
    amnimo(cfg-dhcp-eth0)# router 10.5.5.1 ← Specify the gateway address notified to the DHCP client.
    amnimo(cfg-dhcp-eth0)# dns ns2.example.org ← Specify the IP address or server name of the DNS server notified to the DHCP client.
    amnimo(cfg-dhcp-eth0)# domain example.org ← Specify the DNS domain name notified to the DHCP client.
    amnimo(cfg-dhcp-eth0)# ntp ntp2.org ←Specify the IP address of the NTP server notified to the DHCP client.
    amnimo(cfg-dhcp-eth0)# static 12:34:56:78:90:60 192.168.3.25 ←Assign a fixed IP address to the client with the specified MAC address.
    amnimo(cfg-dhcp-eth0)# enable ← Enable the settings.
    amnimo(cfg-dhcp-eth0)# exit
    amnimo(cfg)# no dhcp eth0
  3. Save the configuration file. 
    amnimo(cfg)# config file save

For detailed information on the commands and other optional settings, refer to the following manuals.

 

 

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