Re: ppp, pmcia and isdn question

[Grendel <grendel@example.com>]

$0.02: If you are dialing up to GOL at least, they use PAP and not CHAP.
CHAP requires the ISP using it to keep a plain text version of your
password around somewhere.

-grendel


> Ulrike Schmidt wrote:
> 
> I am trying to connect to my ISP from my notebook running debian
> potato with two methods: pcmcia-modem (USRobotics, Megahertz 33.6) and
> isdn (NEC Aterm IT55DSU). If possible I would like to be able to use
> both.
> 
> I first tried to get the pcmcia-modem working. Cardinfo says "Serial
> or Modem", dev "ttyS2", but when I used pppconfig and had it
> autodetect the modem it did not find it, so entered ttyS2 by hand. I
> also used PAP, although I don't know whether this is correct. Anyway,
> somehow I cannot get a connection. I read something about pppd and
> debug, but "pppd debug" says "The remote system is required to
> authenticate itself but I couldn't find any suitable secret (password)
> for it to use to do so. (None of the available passwords would let it
> use an IP adress.)" I did not quite understand this message and I
> guess I also did not get the syntax right (just tried "pppd -debug"
> but it does not recognize the option).
> 
> Anyway, I gave up on this one for the moment and tried my luck with
> isdn. pppconfig detects the ISDN adaptor, and when I run pon there
> seems to be some communication, lights blink, but after a while the
> connection terminates. I tried PAP and Chat and CHAP and everything is
> the same.
> 
> I got doubts that I can just pretend the ISDN adaptor is a modem,
> although I thought I remembered someone saying so on tlug, so I
> searched the archives, but got too many or not the right hits. In some
> ISDN docs I then saw that Terminal Adaptors are to be treated
> different from ISDN cards, e.g.: "However, isdn4linux can not make use
> of any devices connected via a serial or parallel interface (which are
> called 'terminal adaptors'), ..." and the HOWTO.isdnutils also spoke
> about cards, so I thought now I better ask first on this list:
> 
> If cardinfo detects the pcmcia-card as a modem, why doesn't pppconfig?
> Can I treat the ISDN adapter just like a modem without installing
> anything else?
> Should I use PAP, Chat or CHAP?
> How can I find out where the problem lies with failing connections?
> plog printed out a lot of strange strings will the lights were
> blinking but not much informative information about why the connection
> failed in the end.
> 
> Best, Uli
> 
> 
>