e00c747e   
   From: rick.jones2@hp.com   
      
   ctwiz  wrote:   
   > On Oct 19, 12:43?pm, Jorgen Grahn  wrote:   
   > > Which can be summarized like this: a SYN like this is ignored:   
   > >   
   > > ? ?seq 3459677040, win 65535, options   
   > > ? ?[mss 1460,nop,wscale 3,nop,nop,TS val 792743561 ecr 0,sackOK,eol]   
   > >   
   > > but when the client switches to this, a connection is made:   
   > >   
   > > ? ?seq 3459677040, win 65535, options   
   > > ? ?[mss 1460,sackOK,eol]   
   > >   
      
   > Correct. But I'm curious as to why the client (my os x 10.6.4 macbook   
   > pro) would change the header to accommodate the previously non-   
   > responsive server. Is this in the spec? or is this some weird OS   
   > dependent implementation?   
      
   It suggests that Apple have encountered "problems" often enough in   
   connecting to some stacks involving either the window scaling or time   
   stamp options (I'm ass-u-me-ing the nops present are necessary and   
   sufficient) to code their stack to say that after the Nth   
   retransmssion back-off on some options.  There is not, to my knowledge   
   anything in the TCP specs that requires such behaviour, then again I   
   don't think there is anything that precludes it either.   
      
   > > No, I don't have the answer ... but it's easier for others to discuss   
   > > something they can see directly and quote.   
   > >   
   > > What does netstat -s say?   
   > >   
      
   > Ip:   
      
      
   Snippage -   
      
   It might be easier to do something like:   
      
   netstat -s > before   
      
   netstat -s > after   
   beforeafter before after > delta   
      
   where beforeafter comes from   
   ftp://ftp.cup.hp.com/dist/networking/tools .  Beforeafter will   
   "subtract" before from after and emit the difference.   
      
   rick jones   
   --   
   It is not a question of half full or empty - the glass has a leak.   
   The real question is "Can it be patched?"   
   these opinions are mine, all mine; HP might not want them anyway... :)   
   feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)