Hi. I think your network adapter is responsible for putting the IP checksum to the packets, so outbound packets captured with winpcap do not have such checksums (as they are captured before the NIC card).
Have a nice day GV ----- Original Message ----- From: "Huang Tao, SLC ICM N R&D (BJ)" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, April 27, 2004 7:23 AM Subject: [WinPcap-users] Question about IP Checksum > Dear all, > > I use winpcap to capture ip packets sent out from the computer running winpcap, but I found the checksum of the ip header are 0. > At the same time, I use another computer in the same subnet as the first one to capture the IP packets in the network with winpcap > and I can capture the same IP packet with checksum in the IP Header. > Is it the normal case? or sth wrong with it? > > Cheers, > > Huang Tao > > > > ================================================================== > This is the WinPcap users list. It is archived at > http://www.mail-archive.com/[EMAIL PROTECTED]/ > > To unsubscribe use > mailto: [EMAIL PROTECTED] > ================================================================== > ================================================================== This is the WinPcap users list. It is archived at http://www.mail-archive.com/[EMAIL PROTECTED]/ To unsubscribe use mailto: [EMAIL PROTECTED] ==================================================================
