[lug] SLIP problems

[Ferdinand P. Schmid]

John:
Thanks for looking into this.  It turns out that there was a problem with my
2.2.14 kernel causing this problem.  Since this was the only error message I
got and there wasn't any info on the net regarding this error message it took
me a little while to resolve the problem.  I used this opportunity to upgrade
my system to a custom 2.2.16 kernel.  Between our postings we should have this
issue covered for the next person running into a similar problem.

Ferdinand

John Karns wrote:

> On Tue, 5 Dec 2000, Ferdinand Schmid uttered:
>
> > HI,
> > For a few weeks now I had a nice SLIP connection going on my laptop to
> > access the Internet via CDPD modem.  For some reason now things don't
> > work anymore.  I am not aware of making any changes.  When trying to set
> > up the slip connection manually and then using slattach I get the
> > following error:
> >
> > /sbin/slattach -p slip -s 19200 /dev/ttyS2
> > SLIP_set_disc(1): Invalid argument
>
> From a quick look at the slattach.c source file included with my SuSE6.4,
> it appears that the *set_disc() fxn is related to a failure to set the
> "line discipline".  My guess is that for some reason, /dev/ttyS2 is not
> pointing at your modem device, or your modem has failed.  If the modem is
> a pcmcia device, then it could be that it is being assigned to a different
> ttySn.  This is the case with my laptop when I switch between different
> pcmcia modems.
>
> The cardmgr tries to be smart about detecting modem UART's (sorry, I don't
> know anything about CDPD modems) and adjusts my symbolic link (/dev/modem)
> to point at various /dev/ttySn's where n is 0 ... 23 on my SuSE6.4 box.
> (I use a symbolic link to ease the pain somewhat in managing various app
> config's which use the modem.)
>
> Thus a 'cardctl config' (man cardctl) might tell you something.
>
> ----------------------------------------------------------------------
> John Karns                                              jkarns at csd.net
> Bogota, Colombia                                  Voice: 57-1-341-0300
>
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--
Ferdinand Schmid
Architectural Energy Corporation
http://www.archenergy.com
(303) 444-4149