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Decode PPP-trace please ?

 
 
news@absamail.co.za
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      08-07-2005, 07:58 AM
Hi,

when W95 came on the market and my ISP said my Win 3.1
couldn't do it, and I'd have to buy W95, I decided to look at linux,
because I knew he was lying.

Now, years later, I want to have a portable [to move to other
telco-connections] PC-inet connection, just for emergencies.
A 4Mb Compaq which has had Win 3.1 installed for years
should Inet-connect [again] except that my ISP parameters are
now different.

After attempting to find all arguments which need updating,
I still can't connect.

Here's an output trace - with longer lines wrapped by me at "\"
because of possible email line-len-limits.

======== start of PPP trace =======

atdt340-7501
CONNECT/ARQ
CChecking authorization, Please wait...
username:
Script aborted
PPP ENABLED
PPP[C021] SND CONFREQ ID=01 LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A48D1D) PFC ACFC
PPP[C021] state = reqsent
PPP[C021] SND CONFREQ ID=02 LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A499FC) PFC ACFC
PPP[C021] SND CONFREQ ID=03 LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A4A6DC) PFC ACFC
PPP[C021] SND CONFREQ ID=04 LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A4B3BB) PFC ACFC
PPP[C021] SND CONFREQ ID=05 LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A4C09B) PFC ACFC
PPP[C021] SND CONFREQ ID=06 LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A4CD7A) PFC ACFC
PPP[C021] SND CONFREQ ID=07 LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A4DA5A) PFC ACFC
PPP[C021] SND CONFREQ ID=08 LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A4E739) PFC ACFC
PPP[C021] SND CONFREQ ID=09 LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A4F419) PFC ACFC
PPP[C021] SND CONFREQ ID=0A LEN=24 MRU(05DC) ACCM(00000000) \
MAGIC(00A5001D) PFC ACFC
PPP[C021] state = stopped
PPP[C021] state = starting
PPP[C023] Internal error: down state = starting
PPP[8021] Internal error: down state = starting

======== end of PPP trace =======
I think someone who knows the pp-protocol could immediately
diagnose the problem from the above trace?

Thanks for any fedback.

== Chris Glur.


 
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Davide Bianchi
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      08-07-2005, 08:04 AM
On 2005-08-07, (E-Mail Removed) <(E-Mail Removed)> wrote:
> CChecking authorization, Please wait...
> username:
> Script aborted


It seems that your chap/pap script is broken. Suggestion: read the
ISP-howto and reconfigure/fix your script.

Davide

--
Outside of a dog, a book is man's best friend. Inside of a dog, it's too
dark to read.
-- Julius Henry "Groucho" Marx (http://en.wikiquote.org/wiki/Groucho_Marx)
 
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James Carlson
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      08-08-2005, 11:22 AM
(E-Mail Removed) writes:
> Now, years later, I want to have a portable [to move to other
> telco-connections] PC-inet connection, just for emergencies.
> A 4Mb Compaq which has had Win 3.1 installed for years
> should Inet-connect [again] except that my ISP parameters are
> now different.


Perhaps it doesn't help much here, but running antique software on the
Internet is probably not a good choice.

> atdt340-7501
> CONNECT/ARQ
> CChecking authorization, Please wait...
> username:
> Script aborted


That sure doesn't look good. "Script aborted" probably means that the
dialing script (whatever is configured here) failed to handshake with
the peer, so you *don't* have a usable connection. This is likely not
a PPP problem.

Moreover, it's not good that the system you're using started PPP
anyway right after the dial-up script failed. That's not right; it
should have aborted on error rather than driving on and causing
confusion.

Most likely, your script is set up to expect a "Username:" or "login:"
prompt, and your ISP no longer does that, but instead expects you to
start PPP immediately after the modem connects. Most ISPs are run
like that these days. (But that's just a guess; the script could have
other problems.)

> PPP[C021] SND CONFREQ ID=01 LEN=24 MRU(05DC) ACCM(00000000) \
> MAGIC(00A48D1D) PFC ACFC


Ick. The implementation you're using is requesting the default MRU.
That means it's a pretty confused implementation of PPP.

> PPP[C021] SND CONFREQ ID=0A LEN=24 MRU(05DC) ACCM(00000000) \
> MAGIC(00A5001D) PFC ACFC


Repeated LCP Configure Request messages (C021 SND CONFREQ above) with
nothing else in the log means that the local system is receiving *no*
valid PPP messages at all from the peer. Possible problems include:

- The peer isn't running PPP at all. I suspect that's the case
here, because of the script failure above.

- The local or remote modem is misconfigured so that some characters
don't pass. Except for hex 00 through 1F, a usable PPP link must
be 8-bit clean.

- There are serious serial line problems, such as wrong bit rate,
incorrect character length/parity/stop bits, or broken flow
control.

Though hardware problems could cause the above symptoms, I don't
suspect that immediately.

> ======== end of PPP trace =======
> I think someone who knows the pp-protocol could immediately
> diagnose the problem from the above trace?


It doesn't look like a PPP problem.

--
James Carlson, KISS Network <(E-Mail Removed)>
Sun Microsystems / 1 Network Drive 71.232W Vox +1 781 442 2084
MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677
 
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