Damjan Jovanovic schrieb:
 > the packet came from.
 >
 I didn't find a corresponding implementation of recvmsg() for Windows.
    

WSARecvMsg.
  
You got it to return the IP_PKTINFO? From MSDN I gathered it isn't supported, but some googleing now clearly indicates that it is! I must have been really, really blind...
works on Windows?
    

Windows >= XP.
  
Nice! Sounds good.
Enjoy your holiday.
  
Thanks.
Joerg Henne