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Which fields of an IP packet provide for fragmentation of datagrams to allow differing MTUs in the internet?

April 26, 2017differing Fields fragmentation internet IP packet

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Which fields of an IP packet provide for fragmentation of datagrams to allow differing MTUs in the internet?

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A. Identification B. Flags C. Frag Offset D. Type of Service E. Total Length Ans A, B & C The following are the fields in an IP segment, their length, and their definitions: VERS (Version number – 16 bits) HLEN (Number of 32-bit words in the header – 4 bits) Type of Server (How the datagram should be handled – 32 bits) Total Length (Total length of header and data – 32 bits) Identification (Provide fragmentation of datagrams to allow different MTUs in the internet – 4 bits) Flags (Provide fragmentation of datagrams to allow different MTUs in the internet – 4 bits) Frag Offset (Provide fragmentation of datagrams to allow different MTUs in the internet – 6 bits) TTL (Time-To-Live – 6 bits) Protocol (Upperlayer protocol sending the datagram – 16 bits) Header Checksum )Integrity check on the header – 16 bits) Source IP Address (32 bits) Destination IP Address (32 bits) IP Options (network testing, debugging, security and others – 4 bits) Data (4 bits).