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Mohamed G. Gouda					CS 356
Spring 2018						Exercise 7
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How many headers or parts of headers are there in an ICMP packet q 
that is generated by a router R when router R drops a packet p?
Explain your answer.

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Solution
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Packet q has the following headers and parts of headers:

	1. IP header of packet q
	2. ICMP header (type, code) describing why p is dropped
	3. IP header of packet p
	4. Part (8 Bytes) of the transport header in packet p