Strange PPP Disconnect errors?
Ben Scott
dragonhawk at gmail.com
Fri Dec 1 13:08:12 EST 2006
On 12/1/06, Derek Atkins <warlord at mit.edu> wrote:
>> LCP = Link Control Protocol. The peer (the other end, the provider)
>> is telling your end to disconnect.
>
> In this case the "peer" is the packet modem..
Are you sure of that? I don't know that much about mobile data
technology, but I don't see why the design couldn't be that the cell
network transports PPP from your equipment to the MTSO or NOC or
whatever. Not that it really matters to the problem at hand.
> So I don't think it has anything to do with not paying my bill.
I was trying to suggest the possibility of administrative troubles.
(I have to start being less subtle.) For example, there's the
possibility that the telco doesn't think you paid the bill, or removed
the data service, or whatever. But the fact that it works with other
equipment/software would generally rule that out.
> Also, this link can sometimes stay up for multiple minutes; it's not an immediate
> disconnect.
>
> Is there any way to tell PPP to ignore or Nack the LCP Disconnect?
Not that I know of. It's be pointless, anyway. If the you're being
disconnected, you're going to be disconnected. The peer is just being
nice and telling you before it kills the connection.
> When I connect to the same packet modem using my Tungsten E2 I dont
> have this kind of problem.. And I dont think I have this problem when
> I connect from windows, either.
That's significant. I'd say the most likely thing, then, is that
there's something about your PPP configuration under Linux that the
provider doesn't like. Try Googling for combinations of your mobile
data equipment, the service brand name, the provider, and Linux. For
example, "linux verizon EVDO".
-- Ben
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