# Lab 3.2: Observing ARP in Packet Tracer ### Summary We connected a network of 4 computers together using a switch and looked at the mac-address-table of the switch. The only problem I ran into was I forgot to set up the IP for PC2 and when I pinged it I was confused why it wasn't there. during this lab, I learned how to use the switch command lines a little. Setting the IP and Subnet Mask is easy you just click on the workstation you want and go to config then FastEthernet0 then type in the IP and Subnet Mask. you enter admin mode by making the prompt look like Switch (config)# the way you do this is by typing enable. to view the mac address table type show mac-address-table into the CLI prompt. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://paul-gleason.gitbook.io/net-150-network-fundamentals/labs/lab-3.2-observing-arp-in-packet-tracer.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.