If you are using Internet or almost any computer network you will likely using IPv4 packets. IPv4 uses 32-bit source and destination address fields. We are actually running out of addresses but have ...

The IPv4 header is a fundamental part of the Internet Protocol (IP) version 4, containing essential information about how a packet should be handled and delivered. Here’s a breakdown of the IPv4 ...

LENGTH is 4 bits. Final field of IPv4 Header (Options) is variable in length so this field is necessary to indicate the total length of the header. IDs the length of the header in 4-BYTE INCREMENTS.