On Sat, 5 Feb 2000, Mark H. Wood wrote:
> On Thu, 3 Feb 2000, Glynn Clements wrote:
> > Stephen Satchell wrote:
> >
> > > If the only thing you want to know is whether the PPP interface is up,
> >
> > What he said was "i want to know if the user is hooked to the
> > internet".
> >
> > An Internet connection doesn't have to use PPP, and a PPP connection
> > isn't necessarily an Internet connection.
>
> And a PPP interface with "demand" enabled is always "up".
Usually one can assume that computer can reach something on "the
Internet" if the default route exists. This isn't reliable because people
often keep their default route configured to some ethernet card on
laptops even when they aren't connected, but this is the closest to "the
truth" condition -- even if it's dialup on demand, next attempt to send
packets outside will cause it to dial, and unless there is any problem
(like modem isn't connected to the phone line), it will be connected in
about half a minute.
--
Alex
----------------------------------------------------------------------
Excellent.. now give users the option to cut your hair you hippie!
-- Anonymous Coward
-
To unsubscribe from this list: send the line "unsubscribe linux-net" in
the body of a message to [EMAIL PROTECTED]
