Re: DataCall -> PC (ISDN, Modem)

[Aart Koelewijn]

Op 2003-09-27 om 17:22 schreef Ekkard Gerlach:

>
> I found my fault: I mixed MSN's! Oh shi....!
>
> Now ttyI1 accepts the call and I get the same messages
> as you except for pppd[xxx]: pppd is started.
>
> var/log/messages: (sender-PC)
>
> Sep 27 16:58:43 rex2 isdnlog: Sep 27 16:58:43 Call to tei 64 from +49 
> 178/7602xxx,
> Deutschland Mobilfunk
> E1/Deutschland Mo on +49 721/8307xxx, Karlsruhe  CONNECT (Data)
> Sep 27 16:58:44 rex2 chat[8864]: ATD07218307xxx^M
> Sep 27 16:58:44 rex2 chat[8864]: CARRIER^M
> Sep 27 16:59:00 rex2 /USR/SBIN/CRON[8866]: (root) CMD ( rm -f
> /var/spool/cron/lastrun/cron.hourly)
> Sep 27 16:59:21 rex2 chat[8864]: alarm
> Sep 27 16:59:21 rex2 chat[8864]: Failed
> Sep 27 16:59:21 rex2 pppd[8863]: Connect script failed
> Sep 27 16:59:22 rex2 pppd[8863]: Exit.
>
>
> /var/log/mgetty.log on the called PC:
>
> 09/27 14:50:34 yI1  waiting for ``CONNECT'' ** found **
> 09/27 14:50:34 yI1  send:
> 09/27 14:50:34 yI1  waiting for ``_'' ** found **
> 09/27 14:50:41 ##### data dev=ttyI1, pid=23210, caller='1787602986',
> conn='64000/V110/9600', name='', cmd='/usr/sbin/pppd', user='/AutoPPP/'
>
> Why ist user='/AutoPPP/'? When making a normal ISDN-call with
> mgetty (no handy, no V110) I have user='gerlach' and pppd is
> started after:
>

on the calling computer pppd is started as soon as there is a CONNECT. The
result of this is that on the computer that is called the user is AutoPPP
(see your login.conf). Now, if your pap/chap-secrets files are ok you
should get a automatic login without a login prompt.

> 09/26 13:42:55 ##### data dev=ttyI1, pid=30392, caller='0', conn='64000/X.7
> 5', name='', cmd='/bin/login', user='gerlach'
>
>
> Another thing what I don't understand: does the command :
>
>    pppd call demon-gnokii
>
> give a login prompt? The mgetty.login should make a login:
>
> /etc/mgetty/login.config:
> /AutoPPP/ -     a_ppp   /usr/sbin/pppd auth
> *       -       -       /bin/login @
>
> Another think I don't check:
>
> /var/log/messages  showed the first two tries:
> Sep 27 16:42:10 rex2 pppd[8549]: sent [LCP ConfNak id=0xa <magic 0xe81dd77f>]
> Sep 27 16:42:10 rex2 pppd[8549]: rcvd [LCP ConfNak id=0xa <magic 0xe81dd77f>]
> Sep 27 16:42:10 rex2 pppd[8549]: Serial line is looped back.
> Sep 27 16:42:10 rex2 pppd[8549]: sent [LCP TermReq id=0xb "Loopback detected"]
> Sep 27 16:42:10 rex2 pppd[8549]: rcvd [LCP TermReq id=0xb "Loopback detected"]
> Sep 27 16:42:10 rex2 pppd[8549]: sent [LCP TermAck id=0xb]
> Sep 27 16:42:10 rex2 pppd[8549]: rcvd [LCP TermAck id=0xb]
> Sep 27 16:42:10 rex2 pppd[8549]: Connection terminated.

Last year I often got a looped back line too, this year I think it
happened only once or twice, I don't know why, I suspect it has something
to do with the set-up of your provider, but I'm not sure. As far as I
know, the V110 protocol is not used often, so it may take some time for
your provider to get all bugs out of it ;-)

> .. but now any longer. Now I get chat[8864]: alarm (see above).
>
> A third thing I don't check: Why does gnokii change the Link
> /dev/gnokii -> /dev/ttyS1  to  -> /dev/pts/8 ?

I have a somewhat older set-up, no /dev/pts/8. If it works, leave it that
way. Can't help you with that.

> When I change back /dev/gnokii -> /dev/ttyS1   the gnokiid doesn't
> work any longer. Yesterday gnokiid worked  *ONLY* with link
> /dev/gnokii -> /dev/ttyS1. ... hmmm ... I am confused ...
>
>
> > 07/04 23:51:33 yI8   calling login: cmd='/usr/sbin/pppd', argv[]='pppd
> >                       auth'
> > 07/04 23:51:33 ##### data dev=ttyI8, pid=17525, caller='0',
> >                      conn='64000/V110/9600', name='', cmd='/
> >                      usr/sbin/pppd', user='/AutoPPP/'
>
> your example shows user='/AutoPPP/', too. .... hmmm ... it
> seems not be a fault ....

OK, so we got a bit farther. Now after pppd is started on the called
computer your /var/log/messages there should read something like:

pppd[25068]: pppd 2.4.1 started by a_ppp, uid 0
pppd[25068]: Perms of /dev/ttyI8 are ok, no 'mesg n' neccesary.
pppd[25068]: using channel 147
pppd[25068]: Using interface ppp0
pppd[25068]: Connect: ppp0 <--> /dev/ttyI8
pppd[25068]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MD5>
             <magic 0x8c19b178> <pcomp> <accomp>]
pppd[25068]: rcvd [LCP ConfRej id=0x1 <asyncmap 0x0>]
pppd[25068]: sent [LCP ConfReq id=0x2 <auth chap MD5> <magic 0x8c19b178>
             <pcomp> <accomp>]
pppd[25068]: rcvd [LCP ConfAck id=0x2 <auth chap MD5> <magic 0x8c19b178>
             <pcomp> <accomp>]
pppd[25068]: rcvd [LCP ConfReq id=0x1 <mru 296> <magic 0x2e738e2a>
             <pcomp> <accomp>]
pppd[25068]: sent [LCP ConfAck id=0x1 <mru 296> <magic 0x2e738e2a>
             <pcomp> <accomp>]
pppd[25068]: sent [LCP EchoReq id=0x0 magic=0x8c19b178]
pppd[25068]: cbcp_lowerup
pppd[25068]: want: 2
pppd[25068]: sent [CHAP Challenge id=0x1
             <7873007fdf401f04c08e1f2b06ec2b1b1e43>, name = "home"]
pppd[25068]: rcvd [LCP EchoRep id=0x0 magic=0x2e738e2a]
pppd[25068]: rcvd [CHAP Response id=0x1
             <8304bdb0e3ccffccfdce4f0c6085465b>, name = "laptop"]
pppd[25068]: sent [CHAP Success id=0x1 "Welcome to home."]
pppd[25068]: Script /etc/ppp/auth-up started (pid 28648)
pppd[25068]: sent [IPCP ConfReq id=0x1 <addr 192.168.1.2>
             <compress VJ 0f 01>]
mtack2 pppd[25068]: sent [CCP ConfReq id=0x1 <deflate 15>
             <deflate(old#) 15> <bsd v1 15>]
pppd[25068]: CHAP peer authentication succeeded for laptop
Aug 22 19:20:28 mtack2 pppd[25068]: Script /etc/ppp/auth-up finished
             (pid 28648), status = 0x0

This will show if the chap challenge has success.
There may be some more lines about compression/deflation, name server etc.
and then it will have to end with

pppd[25068]: local  IP address 192.168.1.2
pppd[25068]: remote IP address 192.168.1.4
pppd[25068]: Script /etc/ppp/ip-up started (pid 28651)

Which IP addresses you chose wil depend on your set-up. They should be put
in your pap/chap-secrets files and in /etc/hosts on both computers.

In /etc/ppp/ip-up I start for instance fetchmail and fetchnews, but there
is nothing special about that.

>
>
> > If I remember well, that is the message I wrote.
>
> I was YOU! Gratulations!
>
> > Hope this helps.
> yes, one step nearer to my target.

I hope this will be the next step ;-)

> Ekkard

Aart