Packets Going Where
1 min read
Computer Networks!!!
The professor drew boxes and arrows. Source, destination, router, switch. I understood the picture but not the numbers at first and we also used an application called wireshark to capture the packets.
Client sends HTTP request
-> TCP segment
-> IP packet
-> Ethernet frame
-> wire
We calculated subnet things in lab:
PYTHON
# wrong subnet attempt - i used wrong mask once
ip = "192.168.1.10"
mask = "255.255.255.0"
parts = ip.split(".")
# thought network address was just first two parts. wrong.
network = ".".join(parts[:2]) + ".0.0"
The TA corrected my mask math. Network address is not guesswork.
Ping and traceroute labs were the parts I enjoyed. You type a command and something actually happens on the screen.
Bash
ping google.com
tracert google.com # windows lab pc