AY> You may need to change the source and destination IP addresses.
AY> If you swap them over then the checksum will be the same, but if you
AY> change them you'll have to recalculate the checksum.
AY> Assuming the source and destination TCP ports are the same you can leave
AY> them as they are (or swap them over). 
AY> If you just want to retransmit the packet then you don't need to do
AY> anything.

For a test scope I have written a simple TCP server which listens to the port,
accepts bytes(symbols) and sends them back.  I have intercepted (with help of WinPcap) 
a packet,
sent to the server  and now I want to sent it once more, but the server does not 
answer me
and sends an empty packet composed of 40 bytes (IP + TCP headers).



==================================================================
 This is the WinPcap users list. It is archived at
 http://www.mail-archive.com/[EMAIL PROTECTED]/

 To unsubscribe use 
 mailto: [EMAIL PROTECTED]
==================================================================

Reply via email to