IP Packet Fields 2/5
nTotal length of IP Datagram: Max 65,535 bytes
nIdentification: When datagrams are fragmented, this field is used to
uniquely identify the datagram fragments
nFlags -3bits: First is unused, 2nd is D bit indicating that IP
packet/datagram should not be fragmented, 3rd is M bit indicating whether this is last fragment of a
datagram or not (more bit!).