Number of the sub-option that should be sent to the DHCP client. A DHCP option is made up of sub-options. For example, network devices such as SIP phones are often notified about where their firmware and configuration can be downloaded by means of DHCP option 43. The sub-option settings are defined by the respective manufacturer.
- SNMP ID:
 - 2.10.26.5
 - Telnet path:
 - Setup > DHCP > Additional-Options
 - Possible values:
 Max. 3 characters from [0-9]
- Default:
 - empty