I'm not very experience with networking, so on my free time, I usually try and learn some more things about the internet and how it works. While at school, I came across tcpdump and wanted to give it a try (I had experience with wireshark). The first things that come cranking out of it was similar to this line:
20:18:41.526871 IP Isaac-PC.39861 > 63-146-70-65.dia.static.qwest.net.http: Flags [.], ack 1449, win 137, options [nop,nop,TS val 4121497 ecr 3242277283], length 0
Note that this was taken at home, at school the string after
Isaac-PC was much, MUCH longer.
My question is what is that whole
63-146-70-65.dia.static.qwest.net.http line represent? Why is it there, and not an ip address? What am I missing here?