Migrating from wvdial to ppp

Post by Rodolfo Medina
Hi, all.
I can connect to internet with my 56K modem using wvdial,
but would like to use ppp instead: can anybody provide a help?

wvdial uses pppd. It is simply a helper script.

Post by Rodolfo Medina
<blank line>
[Dialer Defaults]
Modem = /dev/ttySL0

Is this a winmodem?

Post by Rodolfo Medina
Baud = 460800

Weird baud rate.
For most modems you want the max possible baud rate 115200 for example.

Post by Rodolfo Medina
Init1 = ATZ

Horrible init string. AT&F or AT&F1 are far better. This string puts the
modem into some unknown state determined by some prior rougue program that
saved the state of the modem.

Post by Rodolfo Medina
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 X3 +MS=34
ISDN = 0
Modem Type = Analog Modem
Phone = 10550813521010
Password = MyPassWord

??? Why in the world are these here?

Post by Rodolfo Medina
Carrier Check = no
nameserver 193.70.192.25
nameserver 193.70.152.25
domain libero.it
. I don't know how to fill the files `/etc/chatscripts/modem',
`/etc/ppp/resolv/modem' and `/etc/ppp/peers/modem', and

No need for any of these.

for detailed discussion, see www.theory.physics.ubc.ca/ppp-linux.html

Post by Rodolfo Medina
in case other files.
I tried running pppconfig, but I'm asked questions I can't answer.
Any help highly appreciated.
I have Debian Sarge GNU/Linux.
Thanks,
Rodolfo

Rodolfo Medina

2006-06-04 20:58:14 UTC

Post by Rodolfo Medina
I can connect to internet with my 56K modem using wvdial,
but would like to use ppp instead: can anybody provide a help?

wvdial uses pppd. It is simply a helper script.

Yes, I know.

Post by Rodolfo Medina
<blank line>
[Dialer Defaults]
Modem = /dev/ttySL0

Is this a winmodem?

Yes, it is. I managed to set it up with Jacques Goldberg and Marvin Stodolsky's
great help: see report at the end of this page:

http://linmodems.technion.ac.il/

Post by Rodolfo Medina
Baud = 460800

Weird baud rate.
For most modems you want the max possible baud rate 115200 for example.

Post by Rodolfo Medina
Init1 = ATZ

Horrible init string. AT&F or AT&F1 are far better. This string puts the
modem into some unknown state determined by some prior rougue program that
saved the state of the modem.

Post by Rodolfo Medina
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 X3 +MS=34
ISDN = 0
Modem Type = Analog Modem
Phone = 10550813521010
Password = MyPassWord

??? Why in the world are these here?

But the connection works fine, I've been using it for
almost 2 years now.

Post by Unruh
for detailed discussion, see www.theory.physics.ubc.ca/ppp-linux.html

Thanks, I read your document carefully and tried as you suggest:

/usr/sbin/pppd /dev/ttySL0 57600 debug connect "/usr/sbin/chat -v '' ATD10550813521010 CONNECT '' ser: ***@libero.it assword: MyPassWord"

, but the output is always the same:

Jun 4 22:28:11 localhost pppd[2155]: The remote system is required to authenticate itself
Jun 4 22:28:11 localhost pppd[2155]: but I couldn't find any suitable secret (password) for it to use to do so.
Jun 4 22:28:11 localhost pppd[2155]: (None of the available passwords would let it use an IP address.)

. Grateful of any other help.
Rodolfo

Unruh

2006-06-05 17:24:51 UTC

Post by Rodolfo Medina
I can connect to internet with my 56K modem using wvdial,
but would like to use ppp instead: can anybody provide a help?

wvdial uses pppd. It is simply a helper script.

Yes, I know.

Post by Rodolfo Medina
<blank line>
[Dialer Defaults]
Modem = /dev/ttySL0

Is this a winmodem?

Yes, it is. I managed to set it up with Jacques Goldberg and Marvin Stodolsky's
http://linmodems.technion.ac.il/

Post by Rodolfo Medina
Baud = 460800

Weird baud rate.
For most modems you want the max possible baud rate 115200 for example.

Post by Rodolfo Medina
Init1 = ATZ

Horrible init string. AT&F or AT&F1 are far better. This string puts the
modem into some unknown state determined by some prior rougue program that
saved the state of the modem.

Post by Rodolfo Medina
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 X3 +MS=34
ISDN = 0
Modem Type = Analog Modem
Phone = 10550813521010
Password = MyPassWord

??? Why in the world are these here?

But the connection works fine, I've been using it for
almost 2 years now.

Post by Unruh
for detailed discussion, see www.theory.physics.ubc.ca/ppp-linux.html

Weird. there is almost no isp that still uses logins. (almost?) all have
converted to pap/chap authentication.
Have you tried without this
Ie, end with
CONNECT '\d\c'

Post by Rodolfo Medina
Jun 4 22:28:11 localhost pppd[2155]: The remote system is required to authenticate itself

Somewhere you have an option for pppd like
auth
or
require-chap
or something. Remove them.

Post by Rodolfo Medina
Jun 4 22:28:11 localhost pppd[2155]: but I couldn't find any suitable secret (password) for it to use to do so.
Jun 4 22:28:11 localhost pppd[2155]: (None of the available passwords would let it use an IP address.)
. Grateful of any other help.

post your /etc/ppp/options file

Post by Rodolfo Medina
Rodolfo

Rodolfo Medina

2006-06-05 10:51:53 UTC

Post by Rodolfo Medina
I can connect to internet with my 56K modem using wvdial,
but would like to use ppp instead: can anybody provide a help?

Is this a winmodem?

Yes, it is. I managed to set it up with Jacques Goldberg and Marvin
Stodolsky's great help: see

http://linmodems.technion.ac.il/archive-fourth/msg02751.html

Post by Unruh
for detailed discussion, see www.theory.physics.ubc.ca/ppp-linux.html

It seems that I managed to get connected, Unruh's document
was helpful. I'm reporting what I did, I don't know if
it's the best, probably not, but it seems to work.
Suggestions welcome in order to improve the setup.
Thanks indeed, cheers,
Rodolfo

-----------------------------------------------------
Operating system: Debian Sarge GNU/Linux, kernel 2.4

I did:

# cp /etc/ppp/options /etc/ppp/options-original

, then emptied the file /etc/ppp/options and filled it with:

asyncmap 0
auth
crtscts
lock
hide-password
modem
proxyarp
lcp-echo-interval 30
lcp-echo-failure 4
noipx
defaultroute
noauth

. Then:

# cp /etc/ppp/pap-secrets /etc/ppp/pap-secrets-original

, and added the line

romeomedina\@libero\.it * <MyPassWord>

(with my actual password in place of <MyPassWord>)
at the end of /etc/ppp/pap-secrets.
I got connected with:

# /usr/sbin/pppd /dev/ttySL0 57600 debug user ***@libero.it connect "/usr/sbin/chat -v '' AT OK ATD10550813521010 CONNECT '\d\c'"

, and stopped connection with: `# killall pppd'.

To automate the connection, I created the file `/etc/ppp/peers/modem'
and filled it with:

hide-password
noauth
connect "/usr/sbin/chat -v -f /etc/chatscripts/modem"
debug
-crtscts
/dev/ttySL0
57600
defaultroute
noipdefault
user "***@libero.it"
remotename modem
ipparam phone
usepeerdns
nodetach

, and the file `/etc/chatscripts/modem', filled with one line:

'' AT OK ATD10550813521010 CONNECT '\d\c'

. Then I did:

# adduser rodolfo dip

, and then I could start connection with: `$ pon modem',
and close connection with: `C-c'.

James Carlson

2006-06-05 11:53:55 UTC

Post by Rodolfo Medina
# cp /etc/ppp/options /etc/ppp/options-original
asyncmap 0

Remove that; it's the default.

Post by Rodolfo Medina
auth

Remove that as well -- it should be specified only on systems that are
intended to operate as dial-in servers for PPP.

Post by Rodolfo Medina
hide-password

That's the default; remove.

Post by Rodolfo Medina
proxyarp

That's almost certainly ineffectual. Don't specify it unless you know
that the remote IP address will be in the same subnet as some local
Ethernet on your system. (This option is typically used on dial-in
servers. If you're not setting up a dial-in server for other people
to call you, then you don't need it.)

Post by Rodolfo Medina
noipx

That's the default.

Post by Rodolfo Medina
noauth

You probably don't want that in the /etc/ppp/options file; it's more
appropriate in the /etc/ppp/peers/<name> file.
As Bill said, "AT" isn't a good way to initialize the modem.

But, then, as you're using a Winmodem, all bets are off. There may be
no good way to initialize it.

Post by Rodolfo Medina
To automate the connection, I created the file `/etc/ppp/peers/modem'
hide-password

That's the default.

Post by Rodolfo Medina
debug

That's typically specified on the command line (often with
"updetach"). You probably should not include it here.

Post by Rodolfo Medina
-crtscts

Why are you disabling flow control? That's likely to lead to trouble.

In general, the best pppd configuration is one that specifies the
_fewest_ options, and where each option is intentionally included for
a specific reason. The worst configurations (the ones that tend to
fail often and run into upgrade problems) are those that try to
specify everything.

Aim for the former instead of the latter. If you don't know what an
option does, or if the option specified is already the default, then
remove it.

--
James Carlson, KISS Network <***@sun.com>
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

Unruh

2006-06-05 17:28:23 UTC

Post by Rodolfo Medina
I can connect to internet with my 56K modem using wvdial,
but would like to use ppp instead: can anybody provide a help?

Is this a winmodem?

Yes, it is. I managed to set it up with Jacques Goldberg and Marvin
Stodolsky's great help: see
http://linmodems.technion.ac.il/archive-fourth/msg02751.html

Post by Unruh
for detailed discussion, see www.theory.physics.ubc.ca/ppp-linux.html

Why are you demanding that the far side authenticate itself to you?
(Almost?) no isp will do so. Remove this option.

Post by Rodolfo Medina
crtscts
lock
hide-password
modem
proxyarp
lcp-echo-interval 30
lcp-echo-failure 4
noipx
defaultroute
noauth

And now you cancel the previous auth? Remove both the auth and noauth
lines.

Post by Rodolfo Medina
# cp /etc/ppp/pap-secrets /etc/ppp/pap-secrets-original
, and added the line
(with my actual password in place of <MyPassWord>)
at the end of /etc/ppp/pap-secrets.

Yup. Should work.

Post by Rodolfo Medina
, and stopped connection with: `# killall pppd'.
To automate the connection, I created the file `/etc/ppp/peers/modem'
hide-password
noauth
connect "/usr/sbin/chat -v -f /etc/chatscripts/modem"
debug
-crtscts
/dev/ttySL0
57600
defaultroute
noipdefault
remotename modem
ipparam phone
usepeerdns
nodetach
'' AT OK ATD10550813521010 CONNECT '\d\c'
# adduser rodolfo dip
, and then I could start connection with: `$ pon modem',
and close connection with: `C-c'.

Well, that is possible. I would say killall pppd is cleaner and does not
take up a whole terminal window while pppd is running.

Rodolfo Medina

2006-06-06 18:49:18 UTC

Post by Rodolfo Medina
It seems that I managed to get connected, Unruh's document
was helpful. I'm reporting what I did, I don't know if
it's the best, probably not, but it seems to work.
Suggestions welcome in order to improve the setup.

It seems that I spoke too soon.
The connection is sometimes successful, sometimes not:

NO DIALTONE

. I tried to follow Unruh's and James Carlson's suggestions.
Now here's my /etc/ppp/options:

crtscts
lock
modem
lcp-echo-interval 30
lcp-echo-failure 4
defaultroute

, here's my /etc/ppp/peers/modem:

noauth
connect "/usr/sbin/chat -v -f /etc/chatscripts/modem"
debug
crtscts
/dev/ttySL0
57600
defaultroute
noipdefault
user "***@libero.it"
remotename modem
usepeerdns
nodetach

and here's my /etc/chatscripts/modem:

'' ATD10550813521010 CONNECT '\d\c'

. Any other suggestions?
Thanks indeed, cheers,
Rodolfo

Unruh

2006-06-07 15:02:32 UTC

It seems that I spoke too soon.
NO DIALTONE

No dialtone has nothing to do with ppp or chat. It is a problem with your
phone or with your modem. Nothing I or Carlson can say can help you with
that problem. Your winmodem may be acting up, or your phone system may be
acting up. I would suspect the former, in which case get a real modem.

Post by Rodolfo Medina
. I tried to follow Unruh's and James Carlson's suggestions.
crtscts
lock
modem
lcp-echo-interval 30
lcp-echo-failure 4
defaultroute
noauth
connect "/usr/sbin/chat -v -f /etc/chatscripts/modem"
debug
crtscts
/dev/ttySL0
57600
defaultroute
noipdefault
remotename modem

Unneeded, but not a problem

Post by Rodolfo Medina
usepeerdns
nodetach

Why nodetach?

Post by Rodolfo Medina
'' ATD10550813521010 CONNECT '\d\c'
. Any other suggestions?

I made them above. There is nothing in your setup which could cause a
problem, and if your phoneline does not work, nothing can be done about it
in ppp or chat.

Post by Rodolfo Medina
Thanks indeed, cheers,
Rodolfo

Rodolfo Medina

2006-06-08 17:50:01 UTC

Post by Rodolfo Medina
NO DIALTONE

No dialtone has nothing to do with ppp or chat. It is a problem with your
phone or with your modem.
[...]
There is nothing in your setup which could cause a
problem, and if your phoneline does not work, nothing can be done about it
in ppp or chat.

The connection is perfect (never fails) when I use wvdial,
so it can't be a problem with my phone or with my modem:
the only problem must be an incorrect ppp configuration.

I might go on using wvdial without so many problems,
but I like direct use of ppp best and wish to learn how to use
definitely and only it, that's why I applied to the present newsgroup.

Regards,
Rodolfo

Unruh

2006-06-08 22:05:21 UTC

Post by Rodolfo Medina
NO DIALTONE

The connection is perfect (never fails) when I use wvdial,
the only problem must be an incorrect ppp configuration.

NO. NO DIALTONE means that the phone line is inoperative. It is a message
from the modem, not from pppd, not from chat.
Now, you could stick in a command
'' ATH OK--+++\\d\\dATH--OK
at the begin of the chat script just to make sure that the modem is hung up from the last call.

(this sends ATH or hangup to the modem and waits for an OK. If not, it
tries to send three + and then two second waits, and then sends ATH again
and waits for an OK).

Post by Rodolfo Medina
I might go on using wvdial without so many problems,
but I like direct use of ppp best and wish to learn how to use
definitely and only it, that's why I applied to the present newsgroup.

Sure, and you can. But do not look in the wrong places to fix problems.

Rodolfo Medina

2006-06-20 22:30:49 UTC

Post by Rodolfo Medina
It seems that I spoke too soon.
NO DIALTONE

The problem seems to be solved adding the `ATX3' option
in the chatscript:

ABORT BUSY
ABORT 'NO CARRIER'
ABORT VOICE
ABORT 'NO DIALTONE'
ABORT 'NO DIAL TONE'
ABORT 'NO ANSWER'
ABORT DELAYED

'' ATZ
OK-AT-OK ATX3
OK-AT-OK "ATDT10550813521010"
CONNECT \d\c

. Now I wish to add also the `+MS=34' option because without it,
some time (say, 1/5 times) the connect script fails
with a `NO CARRIER' message. But, if I put the string

OK-AT-OK AT+MS=34

in the chatscript, the connection always fails reporting
the message:

CHAP authentication failed: Authentication failure

. My /etc/ppp/chap-secrets seems all right.
Both the `ATX3' and `+MS=34' options are
present in my old wvdial.conf, and used to work fine:

<blank line>
[Dialer Defaults]
Modem = /dev/ttySL0
Baud = 460800
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 X3 +MS=34
ISDN = 0
Modem Type = Analog Modem
Phone = 10550813521010
Username = ***@libero.it
Password = <password>
Carrier Check = no

. I wish to do the `translation' of my old wvdial configuration,
that worked fine, into pppd.

Do you have any hint about what I may be missing
with the `+MS=34' option?

Thanks,
Rodolfo

Rodolfo Medina

2006-06-28 21:30:53 UTC

Post by Rodolfo Medina
I can connect to internet with my 56K modem using wvdial,
but would like to use ppp instead: can anybody provide a help?
<blank line>
[Dialer Defaults]
Modem = /dev/ttySL0
Baud = 460800
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 X3 +MS=34
ISDN = 0
Modem Type = Analog Modem
Phone = 10550813521010
Password = <MyPassWord>
Carrier Check = no
nameserver 193.70.192.25
nameserver 193.70.152.25
domain libero.it
. I don't know how to fill the files `/etc/chatscripts/modem',
`/etc/ppp/resolv/modem' and `/etc/ppp/peers/modem', and
in case other files.

It seems to be solved now.

/etc/chatscripts/modem:

ABORT BUSY
ABORT 'NO CARRIER'
ABORT VOICE
ABORT 'NO DIALTONE'
ABORT 'NO DIAL TONE'
ABORT 'NO ANSWER'
ABORT DELAYED

'' ATZ
OK-AT-OK ATX3
OK-AT-OK ATQ0V1E1S0=0&C1&D2X3+MS=34
OK-AT-OK "ATDT10550813521010"
CONNECT \d\c

/etc/ppp/peers/modem:

noauth
connect "/usr/sbin/chat -v -s -f /etc/chatscripts/modem"
debug
crtscts
/dev/ttySL0
57600
defaultroute
noipdefault
user "***@libero.it"
remotename modem
usepeerdns
nodetach

/etc/resolv.conf:

nameserver 193.70.192.25
nameserver 193.70.152.25
domain libero.it

/etc/ppp/pap-secrets:

* hostname "" *

"***@libero.it" modem "<password>"

/etc/ppp/pap-secrets:

"***@libero.it" modem "<password>"

/etc/ppp/options:

asyncmap 0
auth
crtscts
lock
hide-password
modem
proxyarp
lcp-echo-interval 30
lcp-echo-failure 4
noipx
defaultroute
noauth

. Only, with wvdial the connection would start in 20 seconds,
whereas now it takes 25. Any idea about why and to fix it?

Bye,
Rodolfo

James Carlson

2006-06-29 17:21:16 UTC