[Winpcap-users] Multiple NICs

Gianluca Varenni gianluca.varenni at cacetech.com
Wed Nov 4 07:43:59 PST 2009

If the two applications run on the same PC, even if bound to two different IP addresses assigned to two different NICs, the traffic will not hit the wire at all. The traffic between the two applications is routed directly by the TCP/IP stack, and will not reach the NIC card.

Hope this helps

  ----- Original Message ----- 
  From: Coleman Brumley 
  To: winpcap-users at winpcap.org 
  Sent: Wednesday, November 04, 2009 7:06 AM
  Subject: [Winpcap-users] Multiple NICs



  I have a scenario where I have multiple NICs installed in my PC.  I have 2 applications running, each bound to a separate NIC/IP Address and sending UDP traffic between the two applications.


  When attempting to capture this traffic, though, Wireshark is only capturing broadcasts.  Is there some issue when capturing this type of traffic on the same PC?  


  Best Regards,





  Winpcap-users mailing list
  Winpcap-users at winpcap.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.winpcap.org/pipermail/winpcap-users/attachments/20091104/df002d3e/attachment.htm 

More information about the Winpcap-users mailing list