IT Infrastructure Security Lab 1

Lab 1: Analyze Essential TCP/IP Networking Protocols
Wk11. What protocols did you discover in your Wireshark packet capture data? Provide the acronym and a brief description.
a. FTP – File Transfer Protocol
b. TFTP – Trivial File Transfer Protocol; similar to ftp, but used for automated transfers of configuration or boot files
c. ICMP – Internet Control Message Protocol; used when a ping request is created
d. Telnet – a network protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection.
2. What was the DHCP allocated source IP host address for the vWorkstation and TargetWindows01server?
a. The DHCP allocated source IP host address for the vWorkstation was and the
b. TargetWindows01 server was
3. When you pinged the targeted IP host ( or, what was the source IP address Networking Protocols and destination IP address of the ICMP echo-request packet?
a. Source IP: destination:
b. Source IP: destination:
4. Did the targeted IP host respond to the ICMP echo-request packet with an ICMP echo-reply packet? If yes, how many ICMP echo-request packets were sent back to the IP source?
a. Yes, there were 4 reply packets
5. Find a TCP three-way handshake for a Telnet, FTP, or SSH session. What is the significance of the TCP three-way handshake?
a. For the ssh, there was a 3-way handshake. The significance of the 3-way handshake is Host A sends a TCP SYNchronize packet to Host B. Host B Receives A’s SYN. Host B sends a SYNchronize-ACKnowledgement to Host A. Host A receives B’s SYN-ACK. Host A sends ACKnowledge. Host B receives ACK. This sets up the TCP Socket connection
6. In your Wireshark report, what was the sequence number (Seq=x) of the initial TCP [SYN] packet and TCP [ACK] packet? What was the packet numbera. The initial…

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