Option Overload

Code

52

Length

Fixed, 1 octet.

Value

Predefined, accepted values for this option type include:

• 1 =  File field is overloaded.

• 2 =  Sname field is overloaded.

• 3 = Both file and sname fields are overloaded.

Description

Used in messages sent by the DHCP server to indicate that either of the standard message fields in a DHCP packet for server_host_name ( sname ) and boot_file_name ( file ) are to be overloaded (used to hold options).

When this option is used, it extends the options area in each packet by indicating that unused space for one or both of these two standard fields should be allocated to the area used to carry DHCP options.

Structure