From: gah@ugcs.caltech.edu   
      
   Rick Jones  wrote:   
   > glen herrmannsfeldt  wrote:   
   >> Can you send data with the SYN/ACK?  If not, it wouldn't seem that   
   >> it would cause problems.  In any case, you don't know that it was   
   >> received until you get the ACK for it.   
      
   > The spec allows for data to be present in the SYN|ACK, as well as the   
   > SYN.  One can even have "christmas tree" segments with SYN, data and   
   > FIN.   
      
   I should get out my Comer books again.   
      
   > However, presently, data in the SYN segment is not supposed to   
   > be presented to the application until the handshake is complete.   
      
   Assuming that there is an "application", separate from the rest   
   of the system...   
      
   Otherwise, the reply could by SYN, ACK, data, FIN, and you still   
   need the ACK on that, but the whole transaction in three packets.   
      
   -- glen   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)