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. 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?
Have a nice day GV From: Bhageriya, Piyush Sent: Tuesday, March 23, 2010 11:31 PM To: [email protected] Subject: [Winpcap-users] Problem with WinPcap capture with Jumbo frames Hi WinPcap users, I've used winpcap library in my application to capture TCP/IP packets and extract DICOM info from those packets. It looks like the Winpcap is only able to capture "normal" size ethernet frames(1600 bytes) and not jumbo or super jumbo frames(e.g. 16kb). Maybe the default setting of WinPCap is to capture only normal size frames? Can we configure ethernet frame size in WinPCap? We are missing DICOM data in case of Jumbo frames in Fast gigabit Ethernet. Kind regards, Piyush Bhageriya Philips Healthcare HI - PII - IOCC Philips Innovation Campus Philips Electronics India Ltd Manayata Tech Park,Nagwara, Bangalore - 560045, INDIA Ph: +91 80 41891056 Fax: +91 80 41891000 E-mail: [email protected] Intranet: pww.bangalore.philips.com Internet: www.bangalore.philips.com -------------------------------------------------------------------------------- The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------------------------------------------------------------------------- _______________________________________________ Winpcap-users mailing list [email protected] https://www.winpcap.org/mailman/listinfo/winpcap-users
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