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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>I used the same dump so pcap_sendpacket() failed on the same packet. It was TCP packet with size ~15000 bytes. Seems WinPCap cannot send such large packets. Do you know the reason or any workaround for this?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Andriy Tylychko [mailto:andriy.tylychko@gmail.com] <br><b>Sent:</b> Wednesday, September 28, 2011 5:18 PM<br><b>To:</b> 'winpcap-users@winpcap.org'<br><b>Subject:</b> pcap_sendpacket used in loop fails on 1960th packet on different machines<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>pcap_sendpacket() fails on sending 1960<sup>th</sup> packet.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m replaying traffic captured by tshark to .cap file. I read a packet from file and send it to specific network interface by pcap_sendpacket() (actually by pypcap Python wrapper) in loop. On two different machines first one with Win7 SP1 x64 and the second one with Win2k3 SP2 x86 WinPCap always fails sending 1960<sup>th</sup> packet. What does this magic number means?<o:p></o:p></p></div></div></body></html>