From: Bill Kelly <billk@...>
Date: 2008-01-04T04:31:59+09:00
Subject: Re: [OT] Help Request: Dialup, CardBus Cell Phone, etc. Modem IP Loopback Test


Hi James and Joel,


From: "James Tucker" <jftucker@gmail.com>
>
> Maybe the apps are selecting the wrong 'local address', i.e. using the  
> external address as if it were a loopback address.


From: "Joel VanderWerf" <vjoel@path.berkeley.edu>
> 
> Did you rule out DNS lookups? Try setting Socket.do_not_reverse_lookup=true.


The original code (in Java) is now lost to the mists of time
(and previous employers :)

So I can't say for SURE that we were properly binding to loopback
instead of 0.0.0.0.

But at the time we got bitten pretty badly by certain OS' wanting
to dial the modem, and it was a problem that Apple acknowledged as
unfixable in their OS.9 systems at the time (even over loopback.)
We also experienced the problem on Win 9x systems with AOL accounts.

Given that we only experienced the problem in certain OS and
software environments, I was hoping a variety of dialup users might
try my test program, in the hopes of learning whether there may yet
any systems out there that exhibit the undesired behavior.


Regards,

Bill