[plug] diagnosing dialup problems

[Kim Covil]

Worthwhile checking what compression algorithms your ppp connection is
trying to use... I recently spent a lot of time and effort trying to
diagnose a dialup connectivity problem I had suddenly started having...
turns out that my ISP had recently upgraded the firmware on its dialup
lines and the new firmware had an implementation of ppp_deflate that was
incompatible with my Linux boxes ppp_deflate... the solution was adding
nodeflate to /etc/ppp/options... (I was stumped until I managed to get
through to one of the senior technical staff who runs BSD at home and
had had a similar problem himself... Thanks Luke... :)

There are a number of ppp compression algorithms to check for... take a
look at lsmod and see which ones are being loaded as modules... or check
your logs...

Cheers

Kim

On Tue, 2001-10-30 at 20:18, sol wrote:
>   I'm frequently losing my connection to the internet and having to 
> redial. I'm not sure what the problem is - my modem, browser, the ISP, 
> the line??? - but before I can do anything about it I need to know what 
> the problem is. Can anyone suggest a utility that would help diagnose 
> the problem?
> 
> Thanks,
> 
> Sol
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