[Winpcap-users] Capturing the packets without the callback example

[Gianluca Varenni]

Hi Abdul.

Although other programs (like DU meter) do not show duplicated packets, WinPcap can suffer from this problem (I don't know how DU meter interfaces with the network stack). Can you please try disabling the firewall and antivirus and see if the problem persists?

Have a nice day
GV


  ----- Original Message ----- 
  From: Abdul Qayum 
  To: Gianluca Varenni 
  Cc: Winpcap-users at winpcap.org 
  Sent: Sunday, October 02, 2005 9:37 PM
  Subject: Re: [Winpcap-users] Capturing the packets without the callback example


  hi Gianuluca Varenni

  I am using both  firewall and antivirus but other programe like DU metere( dumeter.com ) does not shows any extra traffic. Meanwhile i also observe that my firewall also shows more traffic. 


  Thanks 

  Muhammad Abdul Qayum




   
  On 10/2/05, Gianluca Varenni <gianluca.varenni at gmail.com> wrote: 
    Hi Abdul.

    Are you using some sort of personal firewall/antivirus software on your  machine?

    What you are seeing is a duplication of the trasmitted packets, and this is usually due to some network software using non standard techniques to access the network.

    Have a nice day
    GV

      ----- Original Message ----- 
      From: Abdul Qayum 
      To: Winpcap-users at winpcap.org 
      Sent: Monday, September 26, 2005 9:04 AM
      Subject: [Winpcap-users] Capturing the packets without the callback example

       
      Hello Everybody

      I have confusion about traffic capture by example program given in winpcap tutorial. I copied the program and compile it. I am using  Winpcap 3.1 original version

      To simulate Traffic i just use ping command to send 50 byte at its reqular interval 
      ping 10.56.18.1 -t -l 50

      The output shows that
      two packet send contineously by sender 
      but only one packet received from receiver
      and this pattern is contineous
      But in Ping command as many packet send , same should  received.  I used DU meter ( bandwidth software www.dumeter.com ) for comparison its give me exact result but packer capturing routine giving me differnet result. 

      One packet for two packet
      If someone could help me. I will be greatful

      Muhammad Abdul Qayum

      Reslut of capturing packet programe. 

      1:17:17.727451 len:92 10.56.18.24.8 -> 10.56.18.1.29261
      1:17:17.727486 len:92 10.56.18.24.8 -> 10.56.18.1.29261
      1:17:17.728696 len:92 10.56.18.1.0 -> 10.56.18.24.29269
      1:17:18.733117 len:92 10.56.18.24.8 -> 10.56.18.1.29260
      1:17:18.733125 len:92 10.56.18.24.8 -> 10.56.18.1.29260
      1:17:18.733127 len:92 10.56.18.1.0 -> 10.56.18.24.29268
      1:17:19.730743 len:92 10.56.18.24.8 -> 10.56.18.1.29259
      1:17:19.730776 len:92 10.56.18.24.8 -> 10.56.18.1.29259
      1:17:19.731981 len:92 10.56.18.1.0 -> 10.56.18.24.29267
      1:17:19.940309 len:90 10.56.18.2.258 -> 224.0.0.5.14336
      1:17:20.736450 len:92 10.56.18.24.8 -> 10.56.18.1.29258 
      1:17:20.736457 len:92 10.56.18.24.8 ->10.56.18.1.29258
      1:17:20.736459 len:92 10.56.18.1.0 -> 10.56.18.24.29266
      1:17:21.734230 len:92 10.56.18.24.8 -> 10.56.18.1.29257
      1:17:21.734263 len:92 10.56.18.24.8 -> 10.56.18.1.29257
      1:17:21.735244 len:92 10.56.18.1.0 -> 10.56.18.24.29265
      1:17:22.269719 len:90 10.56.18.6.258 -> 224.0.0.5.14336
      1:17:22.736412 len:92 10.56.18.24.8 -> 10.56.18.1.29256
      1:17:22.736447 len:92 10.56.18.24.8 -> 10.56.18.1.29256
      1:17:22.737467 len:92 10.56.18.1.0 -> 10.56.18.24.29264
      1:17:23.595840 len:90 10.56.18.5.258 -> 224.0.0.5.14336
      1:17:23.743066 len:92 10.56.18.24.8 -> 10.56.18.1.29255 
      1:17:23.743072 len:92 10.56.18.24.8 -> 10.56.18.1.29255
      1:17:23.743074 len:92 10.56.18.1.0 -> 10.56.18.24.29263


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