I was reading the TCP/IP volume 1, when i stumbled upon this sentence describing the Header Length value in the IP Header.
"Header Length is a four-bit field that tells, as the name implies, the length of the IP header in 32-bit words"
what exactly is meant by 32-bit word ?
The size of the header length is 4 bits, how does that correlate to the 32-bit word ?
Thank you in advance.
Thanks for the reply. I dont believe that is the case, because the header length can display upto 64 octets. I dont understand that either but certainly doesnt point to the length of the ip address
The "header length" field is 4 bits, and the field indicates the length of the entire header. With four bits it can only specify up to 16 values - not much information there. But you multiply the value of the "header length" field by 32 to find the total number of bits in the IP header, so a value of 1110 would actually correspond to 14x32 bits or a total header size of 448 bits/56 bytes.