locked
OUTBOUND IPPACKET TCP CHECKSUM RRS feed

  • Question

  • Have a question regarding the value of the TCP checksum at the IPPACKET outbound layer.  If I look at the packet at this layer the TCP checksum is not zero.  However if I use the standard method of calculating the pseudo ip checksum it does not agree unless I turn off offload then it agree's so I am assuming this must be some sort of cummalitive value at this point?

    With tcp checksum offload turned off my SYN and ACK are computed with the correct checksum but the GET request for (HTTP) is marked as invalid any  ideas/thoughts?

     

    Tuesday, November 16, 2010 9:39 PM