Hi, I have a dialup connection (yes they still exist) and PPP with
demand dial. I have a problem with the exponential backoff sending new
SYN packets when creating a new tcp connection. The problem is that the
dialup connection takes around 23 seconds to complete (and then hangs up
10 seconds later due to inactivitity), but by then the gaps between SYN
packets is very long...
Unfortunately most operating systems send an initial SYN, then
exponentially backoff with intermittent resends, say after 1 sec, 2
secs, 4 secs, 8 secs, 16 secs, etc. So what we observe is that because
the dialup connection takes so long to complete, by then the tcp
connection is only trying quite intermittently to connect, eg you might
well wait another 8+ seconds before the next syn is resent, quite easily
my demand dial connection will hangup before the retransmit is even fired...
Does anyone have any suggestions on how I might fake this a little? I
effectively desire to simulate buffering syn packets before the PPP
connection comes up?
Thanks for any off the wall thoughts...
Ed W
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