6f82e95e   
   From: barmar@alum.mit.edu   
      
   In article   
   ,   
    adirtymindisajoyforever  wrote:   
      
   > Hi,   
   >   
   > I have a multithreaded program that creates 10 threads, each creating   
   > a socket and connecting to the same remote machine.   
   >   
   > The first three connects result in a tcp SYN message immediately sent,   
   > but the other seven show a delay of almost 3 seconds, i.e. the SYN   
   > message   
   > in the tcpdump trace shows up 3 seconds after the connect.   
   >   
   > Is there any way of getting a better insight in what is causing this   
   > behaviour?   
   > The sender is a Centos 6.0 linux, the server is a Windows 2008.   
   >   
   > Tnx in advance for any answers or pointers.   
      
   Are you doing the tcpdump on the sending or receiving machine?   
      
   Is there a firewall or IDS in the path?  This sounds like it's doing   
   some kind of rate limiting to prevent DoS attacks.   
      
   --   
   Barry Margolin   
   Arlington, MA   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)