<div dir="ltr">I'm trying to figure out a setup issue and would appreciate any help.<br>I
have a vista virtual machine and a program that injects packet to the
network using winpcap.<br>Every injected packet is duplicated, where the
second packet is the exact copy of the original packet but only the
IP's checksum and TTL are changed (TTL decreased by one).<br>
For example, if I inject an ICMP echo request using winpcap, the target
machine actually gets two requests.<br><br>The duplication happens on
the vista machine - I've validated this by using wireshark.<br><br>Any
ideas of what can cause such an issue?<br>
<br>Thanks</div>