At work I was recently assigned some more network related task. One of the task I fine myself repeating over and over is locating a computer on the network. The only info you need is the ip-address of the computer. This is how I do it: 1. Telnet core switch 2. show ip arp | include <ip-address> This gives me the mac address of the computer 3. show mac address-table address <mac address> This shows what port the computer is behind 4. show cdp neighbors <port on core> This shows the name of the switch that is connected on that port 5. Telnet to that switch 6. Repeat step 3-5 until step 4 returns no switches, that means the computer is directly connected to that port!