Wireshark_ICMP_Solution_July_22_2007

Wireshark_ICMP_Solution_July_22_2007 - Solution to...

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Solution to Wireshark Lab: ICMP Fig. 1 Command prompt after ping request 1. What is the IP address of your host? What is the IP address of the destination host? The IP address of my host is 192.168.1.101. The IP address of the destination host is 143.89.14.34. 2. Why is it that an ICMP packet does not have source and destination port numbers? The ICMP packet does not have source and destination port numbers because it was designed to communicate network-layer information between hosts and routers, not between application layer processes. Each ICMP packet has a "Type" and a "Code". The Type/Code combination identifies the specific message being received. Since the network software itself interprets all ICMP messages, no port numbers are needed to direct the ICMP message to an application layer process.
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Fig. 2 ICMP Echo Request message 3. Examine one of the ping request packets sent by your host. What are the ICMP type and code numbers? What other fields does this ICMP packet have? How
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Wireshark_ICMP_Solution_July_22_2007 - Solution to...

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