Consider the following scenario:
- AP is an access point with internet connectivity and in idle state (ie: no node is connected to it)
- N is a node that wants to establish an internet connection through AP
What is the minimum amount of packets that they must exchange in order for N establish an internet connection? (ie: be able to use standard browsers and sockets api)
What are the names of those packets? Briefly, what those packets do?
Recently I've installed WinPcap to see what packets were being exchanged between my router and my computer. As soon as you connect to the router (ie: the user is not transferring any data), several hundreds of packets are transmitted. Here goes a small list of the first packets and their correspondent time + length:
listening on Network adapter 'Microsoft' on local host... 14:27:46,534048 len:42 14:27:46,537764 len:346 14:27:46,541692 len:42 14:27:46,541694 len:590 14:27:46,541721 len:74 14:27:46,554746 len:149 14:27:46,555292 len:74 14:27:46,568235 len:90 14:27:46,568765 len:90 14:27:46,571916 len:42 14:27:46,586545 len:42 14:27:46,588601 len:90 14:27:46,589166 len:46 14:27:46,597994 len:87 14:27:46,598158 len:67 14:27:46,603153 len:62 14:27:46,695175 len:87 14:27:46,695301 len:67 14:27:46,833377 len:42 14:27:46,835398 len:42 14:27:46,837512 len:86 14:27:46,837756 len:66 14:27:46,892574 len:85 14:27:46,944622 len:86 14:27:46,944774 len:66 14:27:46,991309 len:42
After some seconds, even without the user transferring any data, this list continues to grow even larger (some thousands of packets).