I am trying to set up SIM7000E via ppp. SIM7000E is connected to a beaglebone black via micro USB cable. Beaglebone uses 5.10.168-ti-r71 kernel (Debian). SIM7000E drivers have been installed successfully and also ppp is installed too.
I entered the directory /etc/ppp/peers, copied the file provider and named it gprs. Gprs file looks like this:
# example configuration for a dialup connection authenticated with PAP or CHAP
#
# This is the default configuration used by pon(1) and poff(1).
# See the manual page pppd(8) for information on all the options.
# MUST CHANGE: replace myusername@realm with the PPP login name given to
# your by your provider.
# There should be a matching entry with the password in /etc/ppp/pap-secrets
# and/or /etc/ppp/chap-secrets.
user "myusername@realm"
# MUST CHANGE: replace ******** with the phone number of your provider.
# The /etc/chatscripts/pap chat script may be modified to change the
# modem initialization string.
connect "/usr/sbin/chat -v -f /etc/chatscripts/gprs"
# Serial device to which the modem is connected.
/dev/ttyUSB2
# Speed of the serial line.
115200
nocrtscts
debug
nodetach
ipcp-accept-local
ipcp-accept-remote
# Assumes that your IP address is allocated dynamically by the ISP.
noipdefault
# Try to get the name server addresses from the ISP.
usepeerdns
# Use this connection as the default route.
defaultroute
# Makes pppd "dial again" when the connection is lost.
persist
# Do not ask the remote to authenticate.
noauth
Then when I try to call gprs by typing: pppd call gprs The result is this:
Serial connection established.
using channel 2
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB2
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xf0cd2f0e> ]
rcvd [LCP ConfReq id=0x4 <asyncmap 0x0> <magic 0xd0a7832b> ]
sent [LCP ConfNak id=0x4 ]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xf0cd2f0e> ]
rcvd [LCP ConfReq id=0x5 <asyncmap 0x0> <magic 0xd0a7832b> ]
sent [LCP ConfAck id=0x5 <asyncmap 0x0> <magic 0xd0a7832b> ]
sent [LCP EchoReq id=0x0 magic=0xf0cd2f0e]
sent [PAP AuthReq id=0x1 user="myusername@realm" password=]
rcvd [LCP DiscReq id=0x6 magic=0xd0a7832b]
rcvd [LCP EchoRep id=0x0 magic=0xd0a7832b f0 cd 2f 0e]
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-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 ]
rcvd [LCP ProtRej id=0x7 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
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 ]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 ]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 ]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 ]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 ]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 ]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 ]
sent [LCP EchoReq id=0x1 magic=0xf0cd2f0e]
IPCP: timeout sending Config-Requests
IPV6CP: 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
The /etc/chatscripts/gprs contains:
# You can use this script unmodified to connect to cellular networks.
The APN is specified in the peers file as the argument of the -T command
line option of chat(8).
For details about the AT commands involved please consult the relevant
standard: 3GPP TS 27.007 - AT command set for User Equipment (UE).
(http://www.3gpp.org/ftp/Specs/html-info/27007.htm)
ABORT BUSY
ABORT VOICE
ABORT "NO CARRIER"
ABORT "NO DIALTONE"
ABORT "NO DIAL TONE"
ABORT "NO ANSWER"
ABORT "DELAYED"
ABORT "ERROR"
cease if the modem is not attached to the network yet
ABORT "+CGATT: 0"
"" AT
TIMEOUT 12
OK ATH
OK ATE1
+CPIN provides the SIM card PIN
#OK "AT+CPIN=1234"
+CFUN may allow to configure the handset to limit operations to
GPRS/EDGE/UMTS/etc to save power, but the arguments are not standard
except for 1 which means "full functionality".
#OK AT+CFUN=1
OK AT+CGDCONT=1,"IP","\T","",0,0
OK ATD*99#
TIMEOUT 22
CONNECT ""
I also checked what’s happening with the modem using minicom. The lines were: AT showed OK, then i entered Sim’s pin by writing AT+CPIN=xxxx (pin’s number). It showed me that pin is ready but also threw a message saying “Cannot open /dev/ttyUSB2!”. Then when I checked about network registration with AT+CREG? It showed, CREG: 0,0. Meaning that is not registered…
Also with: sudo minicom --setup, i went to Serial port setup and changed the lines and wrote this: A - Serial Device: /dev/ttyUSB2. F - Hardware Flow Control set to No and also G - Software Flow Control set to No.
Can anyone help with this?