gprs/umts connection with pppd
Hi all.
I'm using a embedded ARM9 device and the UMTS/GPRS USB Modem MD300 from Sony Ericsson. Unfortunately I'm still facing some problems with the connection which does fail... The pppd-log does say the following: #################### Starting GPRS connect script Setting APN Dialing... Serial connection established. using channel 2 Using interface ppp0 Connect: ppp0 <--> /dev/ttyACM0 sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4d37b8ad> <pcomp> <accomp>] rcvd [LCP ConfReq id=0x2 <accomp> <pcomp> <asyncmap 0x0> <magic 0xb4dcd12b>] sent [LCP ConfAck id=0x2 <accomp> <pcomp> <asyncmap 0x0> <magic 0xb4dcd12b>] rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x4d37b8ad> <pcomp> <accomp>] sent [LCP EchoReq id=0x0 magic=0x4d37b8ad] sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <compress VJ 0f 01> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>] Hangup (SIGHUP) sent [CCP ConfReq id=0x1 <bsd v1 15>] rcvd [LCP EchoRep id=0x0 magic=0xb4dcd12b] ioctl(PPPIOCSASYNCMAP): Inappropriate ioctl for device(25) tcflush failed: Input/output error #################### the peer-file does look like this: # File: /etc/ppp/peers/chtgprs # /dev/ttyACM0 115200 defaultroute noipdefault usepeerdns noauth modem debug logfile /var/log/ppp lcp-echo-failure 4 lcp-echo-interval 65535 connect "/bin/chat -v -f /etc/chatscripts/chtgprs-connect" #################### and here the used chatscript: # File: /etc/chatscripts/chtgprs-connect # TIMEOUT 10 ABORT 'BUSY' ABORT 'NO ANSWER' ABORT 'ERROR' SAY 'Starting GPRS connect script\n' # Get the modem's attention and reset it. "" 'ATZ' # E0=No echo, V1=English result codes OK 'ATE0V1' # Set Access Point Name (APN) SAY 'Setting APN\n' OK 'AT+CGDCONT=1,"IP","gprs.swisscom.ch"' # Dial the number ABORT 'NO CARRIER' SAY 'Dialing...\n' OK 'ATD*99***1#' CONNECT '' #################### Beside the APN no username or password are necessary for a connection with this provider (I tested this with other devices). Can anyone see the problem looking at the log-messages? Thanks, swake |
All times are GMT -5. The time now is 11:56 AM. |