At 08:40 AM 9/30/2009, Sake Blok wrote:
Duplicate packets
will be displayed as "ouf-of-order" at the tcp level, as there
is no code (yet) to recognize these packets as duplicates. I bet you are
capturing traffic to and from a VM on the host on which this VM runs. In
VMware, this results in duplicates (I have no idea why,
anyone?).
My Windows 2008 Server running in VMWare Server 2 duplicates most
outbound packets. One is sent with the MAC address of the host and
the other with the MAC address of the VM. This causes some problems
with my firewall, but I have never been able to figure out why it
happens. I found one post about this but there was no explanation
or resolution.