3G modem problems

Tony Bazeley tbag at internode.on.net
Fri Jan 4 00:36:28 UTC 2008


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.

Many thanks
Tony

john at laptop:~$ sudo pppd noauth nodetach /dev/ttyUSB1 user '' connect 
'/usr/sbin/chat ABORT BUSY ABORT "NO CARRIER" "" ATZ OK ATDT*99# CONNECT'
Serial connection established.
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB1
PAP authentication succeeded
IPCP: timeout sending Config-Requests
Connection terminated.
Modem hangup

john at laptop:~$ pon NextG updetach debug dump
pppd options in effect:
debug debug             # (from command line)
updetach                # (from command line)
dump            # (from command line)
noauth          # (from /etc/ppp/peers/NextG)
user xxxxxx            # (from /etc/ppp/peers/NextG)
remotename NextG                # (from /etc/ppp/peers/NextG)
/dev/ttyUSB1            # (from /etc/ppp/peers/NextG)
460800          # (from /etc/ppp/peers/NextG)
lock            # (from /etc/ppp/options)
connect /usr/sbin/chat -v -f /etc/chatscripts/NextG             # (from 
/etc/ppp/peers/NextG)
crtscts         # (from /etc/ppp/options)
modem           # (from /etc/ppp/options)
asyncmap 0              # (from /etc/ppp/options)
lcp-echo-failure 4              # (from /etc/ppp/options)
lcp-echo-interval 30            # (from /etc/ppp/options)
hide-password           # (from /etc/ppp/peers/NextG)
ipparam NextG           # (from /etc/ppp/peers/NextG)
noipdefault             # (from /etc/ppp/peers/NextG)
defaultroute            # (from /etc/ppp/peers/NextG)
proxyarp                # (from /etc/ppp/options)
usepeerdns              # (from /etc/ppp/peers/NextG)
noipx           # (from /etc/ppp/options)
Serial connection established.
using channel 5
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB1
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x44885d8b> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x10 <asyncmap 0x0> <auth chap MD5> <magic 
0xde436b> <pcomp> <accomp>]
sent [LCP ConfNak id=0x10 <auth pap>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x44885d8b> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x11 <asyncmap 0x0> <auth pap> <magic 0xde436b> 
<pcomp> <accomp>]
sent [LCP ConfAck id=0x11 <asyncmap 0x0> <auth pap> <magic 0xde436b> 
<pcomp> <accomp>]
sent [LCP EchoReq id=0x0 magic=0x44885d8b]
sent [PAP AuthReq id=0x1 user="jmcc100" password=<hidden>]
rcvd [LCP DiscReq id=0x12 magic=0xde436b]
rcvd [LCP EchoRep id=0x0 magic=0xde436b 44 88 5d 8b]
rcvd [PAP AuthAck id=0x1 ""]
PAP authentication succeeded
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>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 
10.11.12.13> <ms-dns3 10.11.12.14>]
sent [LCP EchoReq id=0x1 magic=0x44885d8b]
IPCP: timeout sending Config-Requests
sent [LCP TermReq id=0x2 "No network protocols running"]
sent [LCP TermReq id=0x3 "No network protocols running"]
Connection terminated.
Modem hangup
john at laptop:~$






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