Packet Tracer iLab Report
Name: Cole Morris Date: 20170612 Professor: Meadows Course #___NETW203__ Week#__4__ iLab# __9.3.1.2__:
Activity Report
Write a short paragraph (minimum five college-level sentences) below that summarizes what was accomplished in this lab, what you learned by performing it, how i t relates to this week's week 's TCO's and other course material; and just as important, how you feel it will benefit you in your academic and professional career. (40 points) I enjoyed this lab, for many reasons, but mostly because I got to see how data travels to a switch and then to a server. By setting up multiple users making request, this is a more l ifelike situation, considering all users wont exactly be performing the same action at once. In a academic setting, this is key to what I study with wi th cisco, and it is imperative i mperative that I understand that this is how data flows. In a Professional setting, this currently helps me by being able to explain to customers why certain things happen with their internet, and how it effects speeds. Certainly, a way to get out of h ot water!
When you have completed the Packet Tracer iLab, take a screenshot of your completion percentage page and paste it below. (60 points)
Click Capture/Forward Capture/Forward again. Some of the PDUs disappear. di sappear. What do you think happened to them? I think they got placed in a buffer on the switch
Click Capture/Forward Capture/Forward six times. All clients should have received a reply. Note that only on e PDU can cross a wire in each direction at any given time. What is this called? Multiplexing
Click the Inbound PDU Details tab and scroll down to the last section. What is the section labeled? TCP
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Packet Tracer iLab Report Are these communications considered considered to be reliable?
Yes
Record the SRC PORT, DEST PORT, SEQUENCE NUM, and ACK NUM values. What i s written in the field to the left of the WINDOW field? 1025, 80, 0, 0 SYN
Click the PDU envelope and select Inbound PDU Details. How are the port and sequence numbers different than before? 21, 1025, 0, 1. SYN+ACK. The source and destination ports are reversed, and the acknowledgement number is 1.
Click the Outbound PDU Details tab. How are the port and sequence numbers different from the previous two results? 1025, 21, 1, 1. ACK. The source and destination ports are reversed, and both sequence and acknowledgement numbers are 1.
Open the PDU and select Inbound PDU D etails. Scroll down past the TCP section. What i s the message from the server? “Username ok, need password” or “Welcome to PT Ftp server”
Click the Inbound PDU Details tab and scroll down to the last section. What is the section labeled? UDP
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Packet Tracer iLab Report
number? 1025, 53. Because UDP does not need to establish a reliable connection.
Click the PDU envelope and select Inbound PDU Details. How are the port and sequence numbers different than before? 53, 1025. The source and destination ports are fli pped.
g. What is the last section of the PDU called? Dns answer.
Click the Inbound PDU Details tab and scroll down to the last section. What transport layer protocol does email traffic use? TCP
Are these communications considered considered to be reliable? Yes.
Record the SRC PORT, DEST PORT, SEQUENCE NUM, and ACK NUM values. What i s written in the field to the left of the WINDOW field? 1025, 25, 0, 0. SYN
Click the PDU envelope and select Inbound PDU Details. How are the port and sequence numbers different than before? 25, 1025, 0, 1. SYN+ACK. The source and destination ports are reversed, and the acknowledgement number is 1.
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Packet Tracer iLab Report
How are the port and sequence numbers different from the previous two PDUs? 1025, 25, 1, 1. PSH+ACK. The source and destination ports are reversed, and both sequence and acknowledgement numbers are 1.
What email protocol is associated with TCP port 25? What protocol i s associated with TCP port 110? SMTP. POP3.
Enter the netstat command. What protocols are listed in the l eft column? TCP
What port numbers are being used by the server 21,25, 80.
What states are the sessions in? CLOSED, ESTABLISHED, LAST_ACK