Overview
Readers will learn how to add custom options to the DHCP server configuration.
- Applicable to the latest EdgeOS firmware on all EdgeRouter models.
Add a DHCP Option
Four settings are required when configuring a DHCP server:
name
The name of the DHCP scope (LAN).subnet
The subnet range (192.168.1.0/24).option <name/number>
The DHCP option (Default Gateway, DNS, etc).option <string>
The value given to the DHCP option.
Below is an example on how to add option 242 to an existing DHCP configuration. The ISC manual page includes many more available options.
1. Enter configuration mode.
configure
2. Add the DHCP option, in this case option 242.
set service dhcp-server global-parameters 'option option-242 code 242 = string;'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 subnet-parameters 'option option-242 "L2Q=1,L2QVLAN=118";'
3. Commit the changes and save the configuration.
commit ; save
The " value is used to replace the quotation marks (") to allow a part of the string to be quoted inside the single quote (') section.
Related Articles
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EdgeRouter - DHCP Server Using Dnsmasq