d433913e   
   From: barmar@alum.mit.edu   
      
   In article   
   <26782998-9070-47dd-a23f-52cf3b276db5@g39g2000pri.googlegroups.com>,   
    "sgifford@suspectclass.com"  wrote:   
      
   > Hello,   
   >   
   > I'm having a weird problem accepting a TCP connection on my Linux Web   
   > server from a Blackberry client.  Linux server is kernel   
   > 2.6.18-1.2798.fc6 from Fedora Core 6.  The initial SYN packet from the   
   > client arrives as I expect.  The server then sends its SYN/ACK and the   
   > client sends the final ACK in the 3-way handshake, again as I expect.   
   > But after that, the server keeps retransmitting its SYN/ACK, and the   
   > client continues to respond with an ACK.  It's as if the server isn't   
   > accepting the ACK from the client, but I can't figure out why.  After   
   > awhile the client starts to send data, and is sent a RST in response.   
   > Here is the packet trace from tcpdump:   
      
   This is the behavior you'd see if the server never receives the ACK.   
      
   Which machine did you run tcpdump on, the client or the server?  If you   
   ran it on the client, try again on the server and see whether it   
   receives the ACK packets.   
      
   --   
   Barry Margolin, barmar@alum.mit.edu   
   Arlington, MA   
   *** PLEASE don't copy me on replies, I'll read them in the group ***   
      
   --- SoupGate-Win32 v1.05   
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