[Winpcap-users] acquisition position

[Gianluca Varenni]

What is the name and description of the adapter you are capturing from? Which operating system?

Have a nice day
GV
  ----- Original Message ----- 
  From: Michel NoSpam 
  To: winpcap-users at winpcap.org 
  Sent: Tuesday, November 03, 2009 12:59 AM
  Subject: [Winpcap-users] acquisition position


        Hello, 

         
        I would to know a which level Wireshark/Winpcap samples the IP packets.
        I use a mobile phone as a modem (DUN). A flow control permits to adjust the data flow from the PC to the modem.

        We have a downlink and a uplink data flow.
        Because of this flow control, we can see that the downlink TCP data are not acknowledge immediately.

        I would like to know where wireshark samples the data?
        When the data leave the ipstack or when the data leave the PC?
        Can I configure wireshark/winpcap to sample the packet a layer 3?
        (I am affraid it could have some important delay between layer3 -> layer 2 -> layer 1)

        (stack ip -> PPP -> USB -> modem) 


        Thanks a lot. 
        Michel 




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