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Marius Gedminas wrote:
<blockquote cite="mid20080105191038.GA3304@fridge.pov.lt" type="cite">
<pre wrap="">On Fri, Jan 04, 2008 at 11:06:28AM +1030, Tony Bazeley wrote:
</pre>
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<pre wrap="">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
<a class="moz-txt-link-freetext" href="http://quozl.linux.org.au/bp3-usb/">http://quozl.linux.org.au/bp3-usb/</a>) 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.
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<pre wrap=""><!---->...
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<pre wrap="">john@laptop:~$ sudo pppd noauth nodetach /dev/ttyUSB1 user '' connect
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<pre wrap="">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>]
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<pre wrap=""><!---->
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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Thanks for the response, Marius<br>
<pre wrap="">$ 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 <a
href="http://quozl.linux.org.au/bp3-usb/">http://quozl.linux.org.au/bp3-usb/</a>
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
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