DHCP options can be used to send additional configuration parameters to the clients. The vendor class ID (DHCP option 60) shows e. g. the type of device. This table allows additional options for DHCP operations to be defined.
- Option number Number of the option that should be sent to the DHCP client. The option number describes the transmitted information. For example "17" (root path) is the path to a boot image that a PC without its own hard disk uses to obtains its operating system via BOOTP. You can find a complete list of all DHCP options in RFC 2132 – "DHCP Options and BOOTP Vendor Extensions" of the Internet Engineering Task Force (IETF).
- Network name Name of the IP network where this DHCP option is to be used.
- Option value
This field defines the contents of the DHCP option. For the option "17",
for example, the path is entered for a boot image that a PC without
its own hard disk uses to obtains its operating system via BOOTP.
Note: The maximum possible length value depends on the selected option number. RFC 2132 lists the maximum length allowed for each option.