Unsupported protocol 0x1 received

Post by michael
I use Demon as my ISP and tings had been going nicely until about Thurs
28 Sept 2006 when my
connection to the Net via Demon broadband started going very slow from
my box from both the Linux and WinXP operating systems.

Any details you can provide would be helpful. What sort of link? Is
it plain old async, ISDN, or something else? What sorts of
configuration options are you using? Can you post _debug_ logs of the
connection establishment?

Post by michael
Oct 1 20:03:44 manchester-campaigns pppd[5621]: sent [LCP ProtRej
id=0x61 00 01 00 21 45 00 01 e2 2b a9 40 00 33 06 2c 50 82 58 c8 38 3e
38 65 54 00 8f b2 b1 2b 0d 88 e1 ...]

Interesting. That _almost_ looks like an IP frame, but it has a bogus
"01" octet pasted on the front.

Some things that might cause such a thing would include VJ compression
bugs (try turning off VJ compression -- "novj") and, if this were
ISDN, bugs in the TA firmware.

--
James Carlson 42.703N 71.076W <***@workingcode.com>

michael

2006-10-04 21:21:15 UTC

It's (meant to be) 2Mb broadband (adsl?). Everything worked fine, no
changes this end...

Not sure what you mean by "debug logs" (Linux o/s syslog file??)

Post by michael
Oct 1 20:03:44 manchester-campaigns pppd[5621]: sent [LCP ProtRej
id=0x61 00 01 00 21 45 00 01 e2 2b a9 40 00 33 06 2c 50 82 58 c8 38 3e
38 65 54 00 8f b2 b1 2b 0d 88 e1 ...]

Interesting. That _almost_ looks like an IP frame, but it has a bogus
"01" octet pasted on the front.
Some things that might cause such a thing would include VJ compression
bugs (try turning off VJ compression -- "novj") and, if this were
ISDN, bugs in the TA firmware.

not sure what TA means...

ta, M

James Carlson

2006-10-05 12:23:15 UTC

It's (meant to be) 2Mb broadband (adsl?). Everything worked fine, no
changes this end...

OK. Using PPPoA or PPPoE?

Post by michael
Not sure what you mean by "debug logs" (Linux o/s syslog file??)

Run pppd with the "debug" option, and make sure that daemon.debug is
redirected to a file via /etc/syslog.conf (and if you must change that
file to make it so, then make sure you do a "pkill -HUP syslogd"
afterwards).

Alternatively, use the "updetach" option on pppd to cause it to log to
the current tty during connection establishment. The disadvantage to
doing that is that you don't get nice timestamps.

At a guess, this may be a problem with the ADSL adapter device.

Post by James Carlson
Some things that might cause such a thing would include VJ compression
bugs (try turning off VJ compression -- "novj") and, if this were
ISDN, bugs in the TA firmware.

not sure what TA means...

"Terminal Adapter" -- it's the device used in an ISDN connection to
hook your computer up to the telephone network. It looks and behaves
sort of like a modem, but it doesn't actually modulate or demodulate.
Instead, it converts between synchronous and asynchronous PPP.

Since you're apparently not using ISDN, the "if this were" clause
evaluates to false, and this detail doesn't matter. ;-}

--
James Carlson 42.703N 71.076W <***@workingcode.com>

michael

2006-10-05 19:35:32 UTC

It's (meant to be) 2Mb broadband (adsl?). Everything worked fine, no
changes this end...

OK. Using PPPoA or PPPoE?

Post by michael
Not sure what you mean by "debug logs" (Linux o/s syslog file??)

I've put a copy of the pppd debug (I grepped for pppd in the
/var/log/debug) at
http://ratty.phy.umist.ac.uk/michael/linux/pppd.log
and pppd from syslog at
http://ratty.phy.umist.ac.uk/michael/linux/syslog_pppd.log

Post by James Carlson
At a guess, this may be a problem with the ADSL adapter device.

I booted into WinXP and used speedtester.bt.com which said 1850kps
d/load, then reconnected to Demon and was getting more like 100kps...

Michael, Manchester

James Carlson

2006-10-06 21:05:25 UTC

Post by James Carlson
OK. Using PPPoA or PPPoE?

Any idea?

Post by michael
I've put a copy of the pppd debug (I grepped for pppd in the
/var/log/debug) at
http://ratty.phy.umist.ac.uk/michael/linux/pppd.log
and pppd from syslog at
http://ratty.phy.umist.ac.uk/michael/linux/syslog_pppd.log

It looks to me like you have kernel problems. I say that because of
this curious message:

read /dev/ppp: Value too large for defined data type

and the fact that the bizarre "proto=0x1" messages go all the way back
to the start of the connection and seem to have no relationship with
the connection state or negotiation.

So, it doesn't look specifically like a PPP problem, but rather like a
Linux PPP (or ATM or whatever it is you're really using) problem.

--
James Carlson 42.703N 71.076W <***@workingcode.com>

michael

2006-10-07 14:15:01 UTC

Post by James Carlson
OK. Using PPPoA or PPPoE?

Any idea?

My /var/log/system has:
Oct 7 15:06:45 manchester-campaigns pppd[5773]: pppd 2.4.4 started by
root, uid 0
Oct 7 15:06:45 manchester-campaigns pppoa3[5776]: pppoa3 version 1.3.1
started
by root (uid 0)
Oct 7 15:06:45 manchester-campaigns pppoa3[5776]: Control thread ready
Oct 7 15:06:45 manchester-campaigns pppd[5773]: using channel 1
Oct 7 15:06:45 manchester-campaigns pppd[5773]: Using interface ppp0
Oct 7 15:06:45 manchester-campaigns pppd[5773]: Connect: ppp0 <-->
/dev/pts/1
Oct 7 15:06:45 manchester-campaigns pppoa3[5776]: host --> pppoa3 -->
modem stream ready
Oct 7 15:06:45 manchester-campaigns pppoa3[5776]: modem --> pppoa3 -->
host stream ready
Oct 7 15:06:46 manchester-campaigns pppd[5773]: sent [LCP ConfReq
id=0x1 <asyncmap 0x0> <magic 0x5129ada1>]
Oct 7 15:06:47 manchester-campaigns pppd[5773]: rcvd [LCP ConfReq
id=0x1e <auth chap MD5> <magic 0x653a2fce>]

Does that help?

Michael

James Carlson

2006-10-08 05:17:17 UTC

Post by James Carlson
OK. Using PPPoA or PPPoE?

Any idea?

Oct 7 15:06:45 manchester-campaigns pppd[5773]: pppd 2.4.4 started by
root, uid 0
Oct 7 15:06:45 manchester-campaigns pppoa3[5776]: pppoa3 version 1.3.1
started

Ah, ok. I would start by looking for the maintainer of this "pppoa3"
module. This seems to be (at a guess):

http://steve-parker.org/speedtouchconf/

I think the problem is in that module. It's garbling the data sent to
PPP.

--
James Carlson 42.703N 71.076W <***@workingcode.com>

michael

2006-10-09 11:12:34 UTC

Post by James Carlson
OK. Using PPPoA or PPPoE?

Any idea?

Oct 7 15:06:45 manchester-campaigns pppd[5773]: pppd 2.4.4 started by
root, uid 0
Oct 7 15:06:45 manchester-campaigns pppoa3[5776]: pppoa3 version 1.3.1
started

Ah, ok. I would start by looking for the maintainer of this "pppoa3"
http://steve-parker.org/speedtouchconf/
I think the problem is in that module. It's garbling the data sent to
PPP.

James. Thanks for the reply. I will contact Steve to see if he has any
input. However, I note that when running MS WinXP Pro on the same
machine I also get numerous errors (as shown by the 'connection status'
(IIRC) dialogue -- I don't know enough about WinXP to find any detailed
logs).

Ta, Michael

michael

2006-10-13 17:53:03 UTC

Post by James Carlson
OK. Using PPPoA or PPPoE?

Any idea?

Oct 7 15:06:45 manchester-campaigns pppd[5773]: pppd 2.4.4 started by
root, uid 0
Oct 7 15:06:45 manchester-campaigns pppoa3[5776]: pppoa3 version 1.3.1
started

Ah, ok. I would start by looking for the maintainer of this "pppoa3"
http://steve-parker.org/speedtouchconf/
I think the problem is in that module. It's garbling the data sent to
PPP.

never got a reply but today...
very strange.... took my Speedtouch 330 modem to a mate's and with
their (waitrose) ADSL it gave the expected 2Mbps d/load

got home, put their D-Link modem/router in and hey presto I'm back to
2Mbps rather than the 200Kbps!

michael

2006-10-14 13:44:14 UTC

Post by James Carlson
OK. Using PPPoA or PPPoE?

Any idea?

Oct 7 15:06:45 manchester-campaigns pppd[5773]: pppd 2.4.4 started by
root, uid 0
Oct 7 15:06:45 manchester-campaigns pppoa3[5776]: pppoa3 version 1.3.1
started

Ah, ok. I would start by looking for the maintainer of this "pppoa3"
http://steve-parker.org/speedtouchconf/
I think the problem is in that module. It's garbling the data sent to
PPP.

never got a reply but today...
very strange.... took my Speedtouch 330 modem to a mate's and with
their (waitrose) ADSL it gave the expected 2Mbps d/load
got home, put their D-Link modem/router in and hey presto I'm back to
2Mbps rather than the 200Kbps!

Here's a snapshot of the line health - is this about right? thanks,
Michael

Downstream Upstream
Line Status
-> ADSL Link Speed 2272 kbps 288 kbps
-> SNR 10.5 dB
-
-> ATEN 30 dB
16 dB

Line Error
-> ADSL layer
--> FEC
0 0
--> CRC
0 28
-> ATM layer
--> HEC
1 12

Frame Counter 1198634
661666

Loop Distance: About 6 K ft.

James Carlson

2006-10-16 11:27:27 UTC