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<DIV><FONT face=Calibri>WinPcap does not have a limitation on the maximum packet
size. It actually interrogates the underlying miniport driver controlling the
network card to know what is the maximum frame size.</FONT></DIV>
<DIV><FONT face=Calibri>Are the jumbo frames transmitted/received by the same PC
where WinPcap is capturing? If not, it's entirely possible that your network
card either doesn't support jumbo frames (quite strange) or simply by default it
doesn't use jumbo frames. What network card are you using?</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>Have a nice day</FONT></DIV>
<DIV><FONT face=Calibri>GV</FONT></DIV>
<DIV style="FONT: 10pt Tahoma">
<DIV><BR></DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A
title=piyush.bhageriya@philips.com
href="mailto:piyush.bhageriya@philips.com">Bhageriya, Piyush</A> </DIV>
<DIV><B>Sent:</B> Tuesday, March 23, 2010 11:31 PM</DIV>
<DIV><B>To:</B> <A title=Winpcap-users@winpcap.org
href="mailto:Winpcap-users@winpcap.org">Winpcap-users@winpcap.org</A> </DIV>
<DIV><B>Subject:</B> [Winpcap-users] Problem with WinPcap capture with Jumbo
frames</DIV></DIV></DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN style="COLOR: #1f497d">Hi WinPcap
users,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d">I’ve used winpcap library in my
application to capture TCP/IP packets and extract DICOM info from those
packets.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d"><o:p> </o:p></SPAN></P>
<P class=MsoNormal>It looks like the <SPAN style="COLOR: #1f497d">Winpcap</SPAN>
is only able to capture “normal” size ethernet frames(1600 bytes) and not jumbo
or super jumbo frames(e.g. 16kb). <o:p></o:p></P>
<P class=MsoNormal>Maybe the default setting of WinPCap is to capture only
normal size frames?<o:p></o:p></P>
<P class=MsoNormal> <o:p></o:p></P>
<P class=MsoNormal>Can we configure ethernet frame size in
WinPCap?<o:p></o:p></P>
<P class=MsoNormal>We are missing DICOM data in case of Jumbo frames in Fast
gigabit Ethernet.<SPAN style="COLOR: #1f497d"><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d"><o:p> </o:p></SPAN></P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Kind
regards,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Piyush
Bhageriya<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Philips
Healthcare<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">HI -
PII - IOCC<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Philips
Innovation Campus<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Philips
Electronics India Ltd<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Manayata
Tech Park,Nagwara, <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Bangalore
- 560045, INDIA<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Ph:
+91 80 41891056<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Fax:
+91 80 41891000<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">E-mail:
<A
href="mailto:floris.verstegen@philips.com">piyush.bhageriya@philips.com</A><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Intranet:
pww.bangalore.philips.com<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #1f497d; FONT-SIZE: 10pt">Internet:
www.bangalore.philips.com</SPAN><SPAN
style="COLOR: #1f497d"><o:p></o:p></SPAN></P></DIV>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d"><o:p> </o:p></SPAN></P></DIV><BR>
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