The size of option field of an IP datagram is 20 bytes. What is the value of HLEN? What is the value in binary?

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The size of option field of an IP datagram is 20 bytes. What is the value of HLEN? What is the value in binary?

written 7.8 years ago by

deeshaachrekar • 350

modified 2.2 years ago by

pedsangini276 • 4.7k

Mumbai University > Information Technology > Sem4 > Computer Networks

Marks: 5M

Year: May 2015

computer networks

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written 7.8 years ago by

deeshaachrekar • 350

The HLEN value is 5, which means the total number of bytes in header is 5*4 or 20 bytes ( for no Options)

The size of the option field given is 20 bytes, hence the total number of bytes in header should be 40 bytes= (20(option )+ header length (5*4))

Hence the value of HLEN=10 (10*4), in binary its value will be 0a

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