Lab 5

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Lab Assessment Questions & Answers
1. What is the purpose of the address resolution protocol (ARP)? ARP converts IP addresses to Ethernet addresses.
2. What is the purpose of the dynamic host control protocol (DHCP)? Dynamic Host Configuration Protocol (DHCP) is a method for assigning Internet Protocol (IP) addresses permanently or temporarily to individual computers in an organization's network. 3. What was the DHCP allocated source IP host address for the “Student” VM and Target VM? 172.30.0.4 - Student VM

172.30.0.8 – Target VM
4. When you pinged the targeted IP host, what was the source IP address and destination IP address of the ICMP echo-request packet? Source: 172.30.0.2
Target: 172.30.0.8
5. 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? Yes, 8 packets.
6. Find a TCP three-way handshake for a Telnet, FTP, or SSH session. What is the significance of the TCP three-way handshake? The three-way handshake is needed to establish a reliable connection. The handshake allows the server and client to agree on properties that provide for security as well as reliability. 7. What was the SEQ# of the initial SYN TCP packet and ACK# of the SYN ACK TCP packet? 8. During the instructor’s Telnet session to LAN Switch 1 and LAN Switch 2, what was the captured terminal password for LAN Switch 1 and LAN Switch 2? Not Captured

9. When the instructor used SSH to remotely access a Cisco router, were you able to see the terminal password? Why or why not? No. The password is encrypted.
10. What other IP packets are on the VLAN and Ethernet LAN segment? How can these other IP packets provide additional clues or information about the logical IP routing and IP addressing schema? These other packet provides information on how the data packets were routed from the source to the destination.
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