IPv4OptionTypeNetwork Packet Object Schema

The copied flag indicates that this option is copied into all fragments on fragmentation. 1 bit. They are represented in this field by a string which specifies their value.

The option class is represented by 2 bits where 0 = control; 1 = reserved for future use; 2 = debugging and measurement; 3 = reserved for future use. These enumerated values are defined for this field.

The Internet Protocol has provision for optional header fields identified by an option type. These types are enumerated in the IPv4OptionsType.