DHCP custom options are used to define a nonstandard DHCP client option that might be required by your software or applications.
A small number of custom options including option 150 (TFTP server), 176 (IP Telephones), and 252 (WPAD) are available in the Address Manager user interface as DHCP client options. Options that aren't included can be added as DHCP custom options.
You can create a DHCP custom option definition from the DHCP custom option definitions tab of the DHCP settings page (). After creating a custom option definition, it's available as a DHCP client option. Add a DHCP custom option at any level where a native DHCP client deployment option can be assigned.
| Option value type | Specifies |
|---|---|
| IPv4 address | An IPv4 address. Example: 192.0.2.10 |
| IPv4 netmask | An IPv4 subnet mask. Example: 255.255.255.0 |
| Unsigned 8-bit integer | An unsigned 8-bit integer. Range: 0 to 255 |
| Unsigned 16-bit integer | An unsigned 16-bit integer. Range: 0 to 65,535 |
| Unsigned 32-bit integer |
An unsigned 32-bit integer. Range: 0 and 4,294,967,295 |
| Signed 8-bit integer | A signed 8-bit integer. Range: - 128 to 127 |
| Signed 16-bit integer |
A signed 16-bit integer. Range: -32,768 to 32,767 |
| Signed 32-bit integer |
A signed 32-bit integer. Range: -2,147,483,648 and 2,147,483,647 |
| Boolean |
True (enabled) or False (disabled). Default: False (disabled) |
| Text | An NVT ASCII string. Example:
|
| String | An NVT ASCII string (works the same as the text data type),
or a series of hexadecimal octets separated by colons.
Example:
or 43:4c:49:45:54:2d:46:4f:4f |