I wrote to the list several months ago describing a wierd problem that I
couldn't at the time diagnose, which we've since manage to fix, and I
wanted to describe this to the list in case somebody else has this
problem in the future. To summarise:
After an intermittent period of time, ranging from 2 minutes to a around
day, outgoing HTTP connections through ppp would suddenly stop. The only
cure would be to redial. This only happened with one ISP, and there were
no problems with using Windows to dial to this ISP with exactly the same
hardware setup. The really wierd thing was that in an earlier
configuration of pppd everything worked fine, and we couldn't work out
what the hell could have changed between the two, why only HTTP, why
only pppd, and why only this ISP.
To cut a long story short, the difference between the two setups was
that I had followed a helpful hint from a posting to the list and
configured the compression aliases in /etc/conf.modules to stop the
errors in the syslog. The net result was that header compression was
suddenly enabled. This particular ISP appeared to be using something
really broken at their end, that after a time, changed its mind about
header compression. The reason that only HTTP suffered is because they
are using transparent proxying, and this in some way confused header
compression.
The cure was frighteningly easy: noccp option to disable header
compression, but it was a bugger to find, even with maximum kernel
debugging. But here it is in case somebody is having the same fun...
jk
-
To unsubscribe from this list: send the line "unsubscribe linux-ppp" in
the body of a message to [EMAIL PROTECTED]
