networking tools

Wireshark

to learn basic working of internet and ip address

• 1. turn off all network activities (mail, chat, game, facebook)

  2. start wireshark capture

  3. go to a simple web server (e.g. example.com)

  4. stop wireshark

  5. analyze the capture

     • what do you see? can you find example.com activities?

     • how to filter the capture to see only what you want?

     • what is the target ip address (example.com)? how to get it? DNS request/response

     • HTTP request / response

     • layering and headers

     • fields in various headers

  6. be prepared to come back to this exercise again and again

  7. try sjsu.edu or cmpe.sjsu.edu or your home router