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Old 01-05-2008, 06:10 PM
Marius Gedminas
 
Default 3G modem problems

On Fri, Jan 04, 2008 at 11:06:28AM +1030, Tony Bazeley wrote:
> I am having trouble connecting a 3G modem.
> The particular usb modem (BP3-EXT) is supplied in Australia through
> Telstra, who refuse to support Linux.
>
> There has been some excellent work on this problem (especially
> http://quozl.linux.org.au/bp3-usb/) and people have reported successful
> connections.
> I have been able to follow this work to connect to the modem but there
> seems to be some sort of block.
>
> I quite new to Linux, ppp and modem connections and have pasted my
> connection attempt below.
> The connection seems to progress OK, until negotiations about
> compression commence.
>
> I would be extremely grateful for any advice on how to proceed.
...
> john@laptop:~$ sudo pppd noauth nodetach /dev/ttyUSB1 user ' connect
...
> sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 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 ProtRej id=0x13 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15 03 2f]
> Protocol-Reject for 'Compression Control Protocol' (0x80fd) received
> rcvd [IPCP ConfNak id=0x1 <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]

Try to disable Compression Control Protocol negotiation with noccp:

john@laptop:~$ sudo pppd noauth noccp nodetach /dev/ttyUSB1 user ' connect

Marius Gedminas
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Old 01-08-2008, 11:53 AM
Tony Bazeley
 
Default 3G modem problems

Marius Gedminas wrote:

On Fri, Jan 04, 2008 at 11:06:28AM +1030, Tony Bazeley wrote:


I am having trouble connecting a 3G modem.
The particular usb modem (BP3-EXT) is supplied in Australia through
Telstra, who refuse to support Linux.

There has been some excellent work on this problem (especially
http://quozl.linux.org.au/bp3-usb/) and people have reported successful
connections.
I have been able to follow this work to connect to the modem but there
seems to be some sort of block.

I quite new to Linux, ppp and modem connections and have pasted my
connection attempt below.
The connection seems to progress OK, until negotiations about
compression commence.

I would be extremely grateful for any advice on how to proceed.


...


john@laptop:~$ sudo pppd noauth nodetach /dev/ttyUSB1 user ' connect


...


sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 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 ProtRej id=0x13 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15 03 2f]
Protocol-Reject for 'Compression Control Protocol' (0x80fd) received
rcvd [IPCP ConfNak id=0x1 <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]



Try to disable Compression Control Protocol negotiation with noccp:

john@laptop:~$ sudo pppd noauth noccp nodetach /dev/ttyUSB1 user ' connect

Marius Gedminas


Thanks for the response, Marius

$ sudo pppd noauth noccp nodetach /dev/ttyUSB1 user ' connect produced the error "pppd: too few parameters for option connect"

Puzzled over this for a bit and realised that some connect parameters were required so I used:

sudo pppd noauth nodetach debug noccp /dev/ttyUSB1 user ' connect '/usr/sbin/chat ABORT BUSY ABORT "NO CARRIER" "" ATZ OK ATDT*99# CONNECT' amended from http://quozl.linux.org.au/bp3-usb/

which seemed to connect to the modem, whether or not I used the option nocpp. In both cases the the modem seems to stop responding, and the client hangs up.
Not sure what to do now - perhaps construct a more comprehensive chat file which attempts to log on. I've attached the debug output file.

Tony Bazeley









Serial connection established.
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB1
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x1dcd3904> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x25 <asyncmap 0x0> <auth chap MD5> <magic 0xb624255> <pcomp> <accomp>]
sent [LCP ConfNak id=0x25 <auth pap>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x1dcd3904> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x26 <asyncmap 0x0> <auth pap> <magic 0xb624255> <pcomp> <accomp>]
sent [LCP ConfAck id=0x26 <asyncmap 0x0> <auth pap> <magic 0xb624255> <pcomp> <accomp>]
sent [LCP EchoReq id=0x0 magic=0x1dcd3904]
sent [PAP AuthReq id=0x1 user="Hubuntu" password=<hidden>]
rcvd [LCP DiscReq id=0x27 magic=0xb624255]
rcvd [LCP EchoRep id=0x0 magic=0xb624255 1d cd 39 04]
rcvd [PAP AuthAck id=0x1 ""]
PAP authentication succeeded
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.1.1>]
rcvd [IPCP ConfNak id=0x1 <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 192.168.1.1>]
rcvd [IPCP ConfNak id=0x2 <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]
sent [IPCP ConfReq id=0x3 <compress VJ 0f 01> <addr 192.168.1.1>]
rcvd [IPCP ConfNak id=0x3 <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]
sent [IPCP ConfReq id=0x4 <compress VJ 0f 01> <addr 192.168.1.1>]
rcvd [IPCP ConfNak id=0x4 <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]
sent [IPCP ConfReq id=0x5 <compress VJ 0f 01> <addr 192.168.1.1>]
Terminating on signal 2
sent [LCP TermReq id=0x2 "User request"]
rcvd [LCP TermAck id=0x2]
Connection terminated.
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Old 01-08-2008, 02:15 PM
Heath Miller
 
Default 3G modem problems

On Tue, 08 Jan 2008 23:23:41 +1030
Tony Bazeley <tbag@internode.on.net> wrote:

> Marius Gedminas wrote:On Fri, Jan 04, 2008 at 11:06:28AM +1030, Tony
> Bazeley wrote: I am having trouble connecting a 3G modem.
> The particular usb modem (BP3-EXT) is supplied in Australia through
> Telstra, who refuse to support Linux.
>
> There has been some excellent work on this problem (especially
> http://quozl.linux.org.au/bp3-usb/) and people have reported
> successful connections.
> I have been able to follow this work to connect to the modem but
> there seems to be some sort of block.
>
> I quite new to Linux, ppp and modem connections and have pasted my
> connection attempt below.
> The connection seems to progress OK, until negotiations about
> compression commence.
>
> I would be extremely grateful for any advice on how to proceed.
> ...
> john@laptop:~$ sudo pppd noauth nodetach /dev/ttyUSB1 user '
> connect ...
> sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1
> 15>] sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0>
> 15><ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
> rcvd [LCP ProtRej id=0x13 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00
> 15 03 2f] Protocol-Reject for 'Compression Control Protocol' (0x80fd)
> received rcvd [IPCP ConfNak id=0x1 <ms-dns1 10.11.12.13> <ms-dns3
> 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]
> Try to disable Compression Control Protocol negotiation with noccp:
>
> john@laptop:~$ sudo pppd noauth noccp nodetach /dev/ttyUSB1 user '
> connect
>
> Marius Gedminas
> Thanks for the response, Marius
> $ sudo pppd noauth noccp nodetach /dev/ttyUSB1 user ' connect
> produced the error "pppd: too few parameters for option connect"
>
> Puzzled over this for a bit and realised that some connect parameters
> were required so I used:
>
> sudo pppd noauth nodetach debug noccp /dev/ttyUSB1 user ' connect
> '/usr/sbin/chat ABORT BUSY ABORT "NO CARRIER" "" ATZ OK ATDT*99#
> CONNECT' amended from http://quozl.linux.org.au/bp3-usb/
>
> which seemed to connect to the modem, whether or not I used the
> option nocpp. In both cases the the modem seems to stop responding,
> and the client hangs up. Not sure what to do now - perhaps construct
> a more comprehensive chat file which attempts to log on. I've
> attached the debug output file.
>
> Tony Bazeley
>
>
>
>
turn off the lcp echo request I was having this issue with a tethered
Treo 680 on AT&T in the US so it maybe the same. Are you able to browse
while its attempting to connect then dies?

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