How to tell pppd not to authenticate?

From: linuxnewbie1234 (linuxnewbie1234_at_nowhere.com)
Date: 11/28/05 

Date: Mon, 28 Nov 2005 16:37:46 +0100

Hi all,
I have a GC83 Sony Ericsson GPRS/EDGE card and I'm trying to make it
work on linux for my provider which is TIM in Italy.
I tried the scripts described here:
http://advantedgecomputing.com/opensource/gc83linux.html
of course I changed the APN name to the proper one for TIM.
Unfortunately it gives an error saying it is unable to authenticate.
I believe that the problem is that the TIM provider does NOT ask for an
authentication with username and password, and I don't know how to tell
pppd that I do NOT want to authenticate (so I don't want pap/chap
nothing). Clearly I tried removing the username and password or setting
them to blank and it didn't work.

Thanks for help
The launch of pppd follows:

----------------

[root@mylaptoplinux ~]# pppd call cingular
Starting GPRS connect script...

Setting the abort string

Initializing modem

*MRDY: 1
AT+cfun=1
OK
AT+cfun=1
OK
AT+cgreg=1
OK

+CGREG: 0
AT
OK
AT&F&D2&C1E0V1S0=0
OK

*MTSMENU: "SIM i.TIM", 0, 12
1:"SCOPRI SERVIZI"
2:"MY TIM"
3:"SCRIPTIM"
4:"ATTIVA MMS"
5:"i.Box"
6:"LOSAI DI TIM"
7:"MilleunaTIM"
8:"2 IN 1"
9:"TIMC^@FE'"
10:"TIM PayForMe"
11:"TIMSPOT"
12:"RICARICA"

OK

*MRDY: 4

OK

OK

OK
Setting APN

OK
Dialing...

OK

CONNECTSerial connection established.
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyS3
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x8e462f81> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x8e462f81> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x8e462f81> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x8e462f81> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x6a <mru 1500> <asyncmap 0x0> <auth pap> <magic
0x879e> <pcomp> <accomp>]
No auth is possible
sent [LCP ConfRej id=0x6a <auth pap>]
rcvd [LCP ConfReq id=0x6b <mru 1500> <asyncmap 0x0> <magic 0x879e>
<pcomp> <accomp>]
sent [LCP ConfAck id=0x6b <mru 1500> <asyncmap 0x0> <magic 0x879e>
<pcomp> <accomp>]
sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1
0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [LCP TermReq id=0x6c]
LCP terminated by peer
sent [LCP TermAck id=0x6c]
Modem hangup
Connection terminated.

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