Strange PPP Disconnect errors?

Ben Scott dragonhawk at gmail.com
Fri Dec 1 15:27:56 EST 2006


On 12/1/06, Kevin D. Clark <kclark at elbrysnetworks.com> wrote:
> Is there anything you can do with the Tungsten or Windows peers to
> capture the PPP traffic so we could compare this to the failing Linux
> PPP session?  Ethereal/Wireshark?

  I think LCP happens below the link layer.  I would not expect it to
be visible to pcap (which Wireshark uses).  (That said, it's cheap to
give it a shot, so maybe we should try that anyway.)  Under Linux, you
can use pppd's built-in debugging capabilities to look at this stuff,
but I don't know anything about that under 'doze or PalmOS.

  Something like a "serial port sniffer" might be more what is needed.
 I have no idea if such things even exist.  :)

  If the computer is connected to the "packet modem" via RS-232 serial
cable, you can use the old trick of putting another computer between
the two, and having it pass through serial data between two ports,
while at the same time capturing it.  I used a DOS program to do this
a million years ago; I would expect it's even easier under Linux.

-- Ben


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