334) Could you please help me to solve this problem? (COMPUTER NETWORKS)

PROBLEM:

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Consider the IP network below;

Assume following tables show the forwarding tables on the routers;

R-1			R-2			R-3
Address	Port #		Address	Port #		Address	Port #
224.100.200.70/6	1		227.15.278.40/4	1		183.25.247.14/5	6
224.174.142.98/11	5		Default	2		232.74.194.12/6	6
80.72.141.135/20	4					225.95.20.137/5	3
80.72.160.65/20	2					95.42.245.23/27	4
188.10.20.30/4	6					211.100.14.29/13	2
Default	3					125.40.80.69/22	5
						Default	1
R-4			R-5			R-6
Address	Port #		Address	Port #		Address	Port #
224.172.253.95/8	1		226.235.187.43/6	3		179.34.226.65/4	2
80.72.175.242/19	4		224.183.75.122/11	2		Default	1
195.29.110.77/25	2		90.200.41.13/23	2
Default	2		128.12.56.174/12	3
			Default	1

Given that the following data is an IPv4 datagram;

0100011010001011000000000011100000010110100011101000000001001110000011000001000100101100011110011011111010001110000110011011001011100010110000110010111101101110001111000101100100111110010101110000101100111100000001011000100100000000001000000011011010001101010100110110010101100011011100100110010101110100001000000110001101101111011001000110010100100000011010010111001100100000001100010011100100110000001101110010110000100000010001100100001000101110

Answer the following questions;

What is the datagram ID in the given datagram?

What is the length of the given datagram and what is indicated in the datagram-length field? Is the length correct?

Is the given datagram an original one or a fragment? If it is a fragment then how many bytes are there in front of this fragment?

How many bytes of a network header are there in the datagram?

What type of an upper-layer-protocol is indicated in the datagram header?

Is the header checksum correct?

What are the source and destination IP addresses? Write the IP addresses on the table below and in the indicated notations.

	Dotted-Decimal Notation	Hexadecimal Notation
Source IP
Destination IP

How many bytes are there in the datagram payload?

What are the source and destination port numbers indicated in the transport layer header?

Source port number :..(in decimal)

Destination port number :..(in decimal)

Write the message in the following notations;

Hexadecimal notation:

ASCII notation:

Write the visited router names in visiting order for the datagram which is transmitted from the host with IP 190.142.25.178 to the host with IP 80.72.134.210

The order of the routers visited:

Assume the above given datagram is at the router R-2. Write the visited router names in visiting order for this datagram until it reaches to the destination.

The order of the routers visited:

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190.142.25.178 R-1 R-5 R-6 R-2 R-4 80.72.134.210 5 6 R-3 224.160.170.97