Re: yet another ppp failure story...
At 11:04 AM -0800 12/20/00, Dwight Johnson wrote:
On Wed, 20 Dec 2000, W. Crowshaw wrote:
At 5:42 PM -0800 12/19/00, Dwight Johnson wrote:
>
>Show us your chatscript.
>
My chat script looks like this:
'TIMEOUT' '30'
'ABORT' 'BUSY'
'ABORT' 'NO CARRIER'
'ABORT' 'NO ANSWER'
'ABORT' 'NO DIALTONE'
'ABORT' 'RING'
'ABORT' '% User/password invalid'
'' 'ATZ'
'OK-+++\c-OK' 'AT &F1 L W2 Q0 V1 E1 &D2 &C1 S0=0 S7=150+MS=56'
'OK' 'ATDT5551000'
'CONNECT 42000' ''
'User Access Verification--User Access Verification' ''
'sername:--sername:' 'wcrowshaw'
'assword:' 'mypassword'
'>' 'ppp'
Your chat script is quite suspect. How did you come up with this weird chat
script? Most ISPs are authenticating with PAP (or MS CHAP) these days.
This script isn't so strange. It used to work perfectly before I
switched from a Redhat distribution to a Debian.
If your ISP does authenticate this way (unlikely), you will be able to
verify it in minicom by doing it manually. After entering 'ppp' at your
console in minicom, you should see the PPP stream start -- it's a profusion
of weird characters spewing over your screen.
O.K. I tried minicom and it looks like this.
-----minicom output begin
AT&F1LW2Q0V1E1&D2&C1S0=0S7=150+MS=56
OK
ATDY T5551000
CONNECT 44000
User Access Verification
Username: wcrowshaw
Password:
as14>ppp
Entering PPP mode.
Async interface address is unnumbered (Ethernet0)
Your IP address is 129.49.78.118. MTU is 1500 bytes
Header compression will match your system.
~?}#¿!}!Å} }4}"}&} }*} } }%}&"}&G}4}'}"}(}"d?~~?}#¿!}!Ç} }4}"}&} }*}
} }%}&"}&G}4}'}"}(}"Æ}0~~?}#¿!}!É} }4}"}&} }*} }
}%}&"}&G}4}'}"}(}"ÁÉ~~?}#¿!}!Ñ} }4}"}&} }*} }
}%}&"}&G}4}'}"}(}"+c~~?}#¿!}!Ö} }4}"}&} }*} }
}%}&"}&G}4}'}"}(}"b?~~?}#¿!}!Ü} }4}"}&} }*} }
}%}&"}&G}4}'}"}(}"®M~~?}#¿!}!á} }4}"}&} }*} }
}%}&"}&G}4}'}"}(}"·Þ~~?}#¿!}!à} }4}"}&} }*} }
}%}&"}&G}4}'}"}(}"!Ñ~~?}#¿!}!â} }4}"}&} }*} }
}%}&"}&G}4}'}"}(}"h}7~~?}#¿!}!ä} }4}"}&} }*} }
}%}&"}&G}4}'}"}(}"¢?~~?}#¿!}!ã} }4}"}&} }*} } }%}&"}&G}4}'}"}(}"Î9~
NO CARRIER
----minicom output end
As you can see, my script only works (now) -- that is, actually goes
through the authentification process -- iff the CONNECT speed matches
42000. Considering that this speed can change upon each connection,
this is one bug from the script.
In any case, using minicom basically gives me a verbose version of
what has been happening all along. The one interesting detail is the
line "Async interface address is unnumbered (Ethernet0)". In the
ppp-logs I have made, before failure, there is always a line "Using
interface ppp0" and then "ppp0<->ttyS0". The line "Async interface
address is unnumbered (Ethernet0)" appears to suggest that my machine
is trying to use interface etho. I don't know.
But if your ISP does authenticate this way, you should see the prompts from
the left side of your chat script appear for you to respond to.
The ugly init screen above is basically the one I run on my mac using
the same modem to connect to my ISP. I've checked it with the modem
manual and its pretty non-controversial.
>Try dialing in using minicom. An immediate hangup like you are getting
>suggests a possible problem with your modem.
>
>Minicom will show you what you get back from your ISP when your call first
>gets answered.
>
I will try minicom tomorrow night.
The PPP-HOWTO by Robert Hart goes into the details of making this manual
connection in minicom. My version is from 1997 but I highly recommend your
reading it. On your Mac, you may have to revert to a custom-built script
and the PPP-HOWTO will show you how to put it together.
Yep, I have read this too.
>Set kdebug to 7 and observe the dialup dialog with your chatscript.
Still recommended. You would probably view this output in /var/log/messages
unless you have routed it elsewhere.
I am still doing this rerouting message deamon,local2.debug
/var/log/pppoutput. Here's an interesting thing though. When I use
minicom, I get absolute no ppp output in the log. This makes sense
because I'm not having ppp dialout through chat, but minicom itself.
Hmm...
Dwight
--
W. Crowshaw
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