Ipconfig:

Ipconfig is a useful tool at work for quickly finding the IP address of the machine I am working on. We use the IP address to allow remote access to computers that need maintenance so this is a quick way for the employee to provide it to us.

ipconfig output:






Ping:

I use ping at work to quickly find out if a device on the network is working correctly. For example, if someone calls and says that their printer isn't working the first thing I do is ping the device name to see if I get a reply. That will rule out network problems.

Ping Output:

When I pinged my router it sent four packets and one failed.



And here is my output from pinging Google.



As the book notes, the results of pinging my router is much faster than when I pinged Google.

ARP

When I used ARP I recognized the IP addresses of all the devices in my house but had four that I did not recognize. After a little research I came across this site which says the block is reserved for multicasting and is specifically listed as IGMP or Internet_Group_Management_Protocol which is used for streaming video so it probably was there due to watching Netflix on my XBox while doing this assignment.



NSLOOKUP

Did an NSLOOKUP for Google and it gave me multiple results



DNS Cache

I'm not sure what this would be good for and when I ran it I noticed many sites that I haven't visited.



TRACERT

I can see how this tool could be useful in trouble shooting network problems. By tracing the route a packet takes you can find what areas of your network are not working properly.