The last option field (option) of an IPv4 packet is a length-variable and optional field. What is the maximum length of this field?
The last option field (option) of an IPv4 packet is a length-variable and optional field. What is the maximum length of this field?
The maximum length of the options field in an IPv4 packet is 40 bytes. This is because the total length of the IPv4 header, including options, can be up to 60 bytes, with the standard header being 20 bytes, leaving up to 40 bytes for options.
Option length 0-40
40B is for option field. datagram header can be up to 60B due to option field
La opcion es la A Option field 0- 40 bytes The maximum length of the Options field is 40 bytes.
Answer is correct