I want to connect my raspberry system to connect internet via sim900 gsm modem for that i am using wvdial method to connect internet my wvdial configuration file like follows
[Dialer play]
Modem = /dev/ttyUSB0
Baud = 9600
Init1 = ATH
Init2 = ATE1
Init3 = AT+CGDCONT=1,"IP","airtelgprs.com"
Dial Command = ATD
Phone = *99#
Stupid mode = yes
Username = ""
Password = ""
if i am connecting 3g usb modem using above configuration the output screen like this
pi#raspbmc:~$ --> WvDial: Internet dialer version 1.61
--> Initializing modem.
--> Sending: ATH
ATH
OK
--> Sending: ATE1
ATE1
OK
--> Sending: AT+CGDCONT=1,"IP","internet"
AT+CGDCONT=1,"IP","internet"
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
CONNECT
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Fri Jun 14 22:35:19 2013
--> Pid of pppd: 3145
--> Using interface ppp0
--> pppd: Ęy
--> pppd: Ęy
--> pppd: Ęy
--> pppd: Ęy
--> pppd: Ęy
--> pppd: Ęy
--> pppd: Ęy
--> local IP address 10.133.163.246
--> pppd: Ęy
--> remote IP address 10.64.64.64
--> pppd: Ęy
--> primary DNS address 89.108.202.20
--> pppd: Ęy
--> secondary DNS address 89.108.195.20
--> pppd: Ęy
it was connected to internet but by using the same command for sim900 gsm modem the output screen like this
pi#raspbmc:~$ --> WvDial: Internet dialer version 1.61
--> Initializing modem.
--> Sending: ATH
ATH
OK
--> Sending: ATE1
ATE1
OK
--> Sending: AT+CGDCONT=1,"IP","internet"
AT+CGDCONT=1,"IP","internet"
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
CONNECT
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Fri Jun 14 22:35:19 2013
--> Pid of pppd: 3145
--> Using interface ppp0
that is it was connect but local IP address, remote ip address,primary DNS address,secondary DNS address not assigned so i am unable browse the internet please help me how to resolve this problem give me the guidance to resolve this problem thanks in advance
Related
I installed tomcat on my virtual machine (on Azure) but failed to access it from an external IP address. I tried some methods I found on stack overflow, but they did not seem to work. The port forwarding tester also says Port 8080 is closed on [my_ip_address]. I did manage to access it from localhost:8080 or 127.0.0.1:8080. I run curl 127.0.0.1:8080 and it returns the correct webpage. In addition, nginx is also able to access the website through the port.
The firewall is not running.
> sudo firewall-cmd --list-all
FirewallD is not running
Tomcat configuration file
I added address="0.0.0.0", but it does not work in my case.
<?xml version='1.0' encoding='utf-8'?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- Note: A "Server" is not itself a "Container", so you may not
define subcomponents such as "Valves" at this level.
Documentation at /docs/config/server.html
-->
<Server port="8005" shutdown="SHUTDOWN">
<Listener className="org.apache.catalina.startup.VersionLoggerListener" />
<!-- Security listener. Documentation at /docs/config/listeners.html
<Listener className="org.apache.catalina.security.SecurityListener" />
-->
<!--APR library loader. Documentation at /docs/apr.html -->
<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
<!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->
<Listener className="org.apache.catalina.core.JasperListener" />
<!-- Prevent memory leaks due to use of particular java/javax APIs-->
<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
<Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />
<!-- Global JNDI resources
Documentation at /docs/jndi-resources-howto.html
-->
<GlobalNamingResources>
<!-- Editable user database that can also be used by
UserDatabaseRealm to authenticate users
-->
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
</GlobalNamingResources>
<!-- A "Service" is a collection of one or more "Connectors" that share
a single "Container" Note: A "Service" is not itself a "Container",
so you may not define subcomponents such as "Valves" at this level.
Documentation at /docs/config/service.html
-->
<Service name="Catalina">
<!--The connectors can use a shared executor, you can define one or more named thread pools-->
<!--
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
maxThreads="150" minSpareThreads="4"/>
-->
<!-- A "Connector" represents an endpoint by which requests are received
and responses are returned. Documentation at :
Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
Java AJP Connector: /docs/config/ajp.html
APR (HTTP/AJP) Connector: /docs/apr.html
Define a non-SSL HTTP/1.1 Connector on port 8080
-->
<Connector port="8080"
address="0.0.0.0"
useIPVHosts="true"
protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<!-- A "Connector" using the shared thread pool-->
<!--
<Connector executor="tomcatThreadPool"
port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
-->
<!-- Define an SSL HTTP/1.1 Connector on port 8443
This connector uses the BIO implementation that requires the JSSE
style configuration. When using the APR/native implementation, the
OpenSSL style configuration is required as described in the APR/native
documentation -->
<!--
<Connector port="8443" protocol="org.apache.coyote.http11.Http11Protocol"
maxThreads="150" SSLEnabled="true" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS" />
-->
<!-- Define an AJP 1.3 Connector on port 8009 -->
<!--
<Connector protocol="AJP/1.3"
address="::1"
port="8009"
redirectPort="8443" />
-->
<!-- An Engine represents the entry point (within Catalina) that processes
every request. The Engine implementation for Tomcat stand alone
analyzes the HTTP headers included with the request, and passes them
on to the appropriate Host (virtual host).
Documentation at /docs/config/engine.html -->
<!-- You should set jvmRoute to support load-balancing via AJP ie :
<Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
-->
<Engine name="Catalina" defaultHost="localhost">
<!--For clustering, please take a look at documentation at:
/docs/cluster-howto.html (simple how to)
/docs/config/cluster.html (reference documentation) -->
<!--
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
-->
<!-- Use the LockOutRealm to prevent attempts to guess user passwords
via a brute-force attack -->
<Realm className="org.apache.catalina.realm.LockOutRealm">
<!-- This Realm uses the UserDatabase configured in the global JNDI
resources under the key "UserDatabase". Any edits
that are performed against this UserDatabase are immediately
available for use by the Realm. -->
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
</Realm>
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<!-- SingleSignOn valve, share authentication between web applications
Documentation at: /docs/config/valve.html -->
<!--
<Valve className="org.apache.catalina.authenticator.SingleSignOn" />
-->
<!-- Access log processes all example.
Documentation at: /docs/config/valve.html
Note: The pattern used is equivalent to using pattern="common" -->
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
resolveHosts="true" prefix="localhost_access_log." suffix=".txt"
pattern="%h %l %u %t "%r" %s %b" />
</Host>
</Engine>
</Service>
</Server>
Active Internet Connections
I managed to bind Apache Tomcat to IPv4 as suggested by confused genius, but it still did not work.
> netstat -ant
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:8005 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:5355 0.0.0.0:* LISTEN
tcp 0 36 10.0.0.4:22 75.84.33.143:59788 ESTABLISHED
tcp 0 0 127.0.0.1:8080 127.0.0.1:57604 TIME_WAIT
tcp 0 0 127.0.0.1:59724 127.0.0.1:8005 TIME_WAIT
tcp 0 0 127.0.0.1:8080 127.0.0.1:57584 TIME_WAIT
tcp 0 0 127.0.0.1:8080 127.0.0.1:57518 TIME_WAIT
tcp 0 0 127.0.0.1:8080 127.0.0.1:57520 TIME_WAIT
tcp 0 0 10.0.0.4:80 75.84.33.143:59952 ESTABLISHED
tcp 0 0 10.0.0.4:80 75.84.33.143:59953 ESTABLISHED
tcp6 0 0 :::22 :::* LISTEN
tcp6 0 0 :::5355 :::* LISTEN
From netstat -ant output , port 8080 is listenting only on tcp6 (ipv6) but not on tcp(ipv4).
tcp6 0 0 :::8080 :::* LISTEN
so it needs to be enabled for ipv4 as well in order to access it the host ip address
check this link it might help
I found the solution. It actually has nothing to do with Tomcat. The problem lies in Azure: you need to explicitly allow the port to be accessible in Azure. Adding it to the firewall does not solve the problems. (You can add inbound port rule in Home/[VM]/Networking)
I have the following errors when trying to execute the netconf command
in Robot Framework. Please let me know if I'm missing/doing something wrong. Thanks
Testcase - Netconf Operation Command in Junos Router
# Manually turn on netconf in Juniper Networks router
# command = set system services netconf ssh, commit
# Juniper Network Router's IP Address
${dev_ip} = Set Variable 192.168.0.1
${netconf_cmd}= catenate SEPARATOR=
... echo '\\<rpc\\>\\n
... \\<get-interface-information/\\>\\n
... \\</rpc\\>\\n
... ' | sshpass -p a_password ssh admin#${dev_ip} netconf
${result} = Run Process ${netconf_cmd} shell=True
Log To Console ${\n}Netconf command output: $${result.stdout}${\n}
The output is not correct, it simply stores netconf's initial greeting message instead of the output of the data-request.
Output:
Netconf command output: $<!-- No zombies were killed during the creation of this user interface -->
<!-- user regress, class j-superuser -->
<hello xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
<capabilities>
<capability>urn:ietf:params:netconf:base:1.0</capability>
<capability>urn:ietf:params:netconf:capability:candidate:1.0</capability>
<capability>urn:ietf:params:netconf:capability:confirmed-commit:1.0</capability>
<capability>urn:ietf:params:netconf:capability:validate:1.0</capability>
<capability>urn:ietf:params:netconf:capability:url:1.0?scheme=http,ftp,file</capability>
<capability>urn:ietf:params:xml:ns:netconf:base:1.0</capability>
<capability>urn:ietf:params:xml:ns:netconf:capability:candidate:1.0</capability>
<capability>urn:ietf:params:xml:ns:netconf:capability:confirmed-commit:1.0</capability>
<capability>urn:ietf:params:xml:ns:netconf:capability:validate:1.0</capability>
<capability>urn:ietf:params:xml:ns:netconf:capability:url:1.0?protocol=http,ftp,file</capability>
<capability>urn:ietf:params:xml:ns:yang:ietf-netconf-monitoring</capability>
<capability>http://xml.juniper.net/netconf/junos/1.0</capability>
<capability>http://xml.juniper.net/dmi/system/1.0</capability>
</capabilities>
<session-id>93467</session-id>
</hello>
]]>]]>
<!-- netconf error: unknown command -->
<!-- session end at 2020-05-12 11:02:26 PDT -->
From the output message I suspect wrong with the xml input. Please verify the rpc message which as been sent. The response says it an netconf error.
Netconf session is complete with the hello exchange. It failed while sending a rpc
I just installed Wildfly 11.0.0.Final on Amazon Linux with Java 8. How do I activate the AJP port in the $JBOSS_HOME/standalone/configuration/standalone.xml file ? I have the following configured for my socket bindings ...
<socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:0}">
<socket-binding name="management-http" interface="management" port="${jboss.management.http.port:9990}"/>
<socket-binding name="management-https" interface="management" port="${jboss.management.https.port:9993}"/>
<socket-binding name="ajp" port="8009"/>
<!-- <socket-binding name="ajp" port="${jboss.ajp.port:8009}"/> -->
<socket-binding name="http" port="${jboss.http.port:8081}"/>
<socket-binding name="https" port="${jboss.https.port:8443}"/>
<socket-binding name="txn-recovery-environment" port="4712"/>
<socket-binding name="txn-status-manager" port="4713"/>
<outbound-socket-binding name="mail-smtp">
<remote-destination host="localhost" port="25"/>
</outbound-socket-binding>
</socket-binding-group>
However when I restart my server, although I'm able to connect to the http port, I can't connect to the AJP port ...
[myuser#mymachine ~]$ telnet localhost 8081
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
quit
HTTP/1.1 400 Bad Request
Content-Length: 0
Connection: close
Connection closed by foreign host.
[myuser#mymachine ~]$ telnet localhost 8009
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
What else do I need to do to activate my AJP port on Wildfly 11?
You'll need to activate it. See AJP Listeners for a bit more detail but the short answer is that you need to enable it:
[standalone#localhost:9999 /] /subsystem=undertow/server=default-server/ajp-listener=myListener:add(socket-binding=ajp, scheme=http, enabled=true)
This uses jboss-cli.sh to enable it. In this case myListener is whatever name you want. This will add an entry in the undertow section of standalone.xml that enables the listener. You'll need to restart to have this take affect.
I'm using Infinispan to create a distributed cache between two servers and to leverage its failover feature.
I initially tested my webservice on two local instances of tomcat, using the pre-configured JGroups configuration file provided by infinispan-core-7.0.0.Final.jar. I was able to get the distributed cache working between the two Tomcat instances since the pre-configured xml files were using the loopback ip address.
I then moved the webservice onto two separate servers and have been unable to have them join the same Group. I created my own custom JGroups tcp configuration xml because using the loopback ip in the pre-configured one was causing some issues.
I don't have much experience in setting up tcp or udp channel, so I think the problem may lie with my JGroups configuration file (I based it off the pre-configured one).
<config xmlns="urn:org:jgroups"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/JGroups-3.4.xsd">
<!-- bind_addr="${jgroups.tcp.address:127.0.0.1}"-->
<TCP
bind_addr="GLOBAL"
bind_port="${jgroups.tcp.port:7800}"
port_range="30"
recv_buf_size="20m"
send_buf_size="640k"
max_bundle_size="31k"
use_send_queues="true"
enable_diagnostics="false"
bundler_type="sender-sends-with-timer"
thread_naming_pattern="pl"
thread_pool.enabled="true"
thread_pool.min_threads="2"
thread_pool.max_threads="30"
thread_pool.keep_alive_time="60000"
thread_pool.queue_enabled="true"
thread_pool.queue_max_size="100"
thread_pool.rejection_policy="Discard"
oob_thread_pool.enabled="true"
oob_thread_pool.min_threads="2"
oob_thread_pool.max_threads="30"
oob_thread_pool.keep_alive_time="60000"
oob_thread_pool.queue_enabled="false"
oob_thread_pool.queue_max_size="100"
oob_thread_pool.rejection_policy="Discard"
internal_thread_pool.enabled="true"
internal_thread_pool.min_threads="2"
internal_thread_pool.max_threads="4"
internal_thread_pool.keep_alive_time="60000"
internal_thread_pool.queue_enabled="true"
internal_thread_pool.queue_max_size="100"
internal_thread_pool.rejection_policy="Discard"
/>
<!-- Ergonomics, new in JGroups 2.11, are disabled by default in TCPPING until JGRP-1253 is resolved -->
<!--
<TCPPING timeout="3000"
initial_hosts="localhost[7800],localhost[7801]"
port_range="5"
num_initial_members="3"
ergonomics="false"
/>
-->
<!-- bind_addr="${jgroups.bind_addr:127.0.0.1}" -->
<!-- ip_ttl="${jgroups.udp.ip_ttl:2}"-->
<MPING bind_addr="GLOBAL" break_on_coord_rsp="true"
mcast_addr="${jgroups.mping.mcast_addr:228.2.4.6}"
mcast_port="${jgroups.mping.mcast_port:43366}"
num_initial_members="3"/>
<MERGE3/>
<FD_SOCK/>
<FD timeout="3000" max_tries="5"/>
<VERIFY_SUSPECT timeout="1500"/>
<pbcast.NAKACK2 use_mcast_xmit="false"
xmit_interval="1000"
xmit_table_num_rows="100"
xmit_table_msgs_per_row="10000"
xmit_table_max_compaction_time="10000"
max_msg_batch_size="100"/>
<UNICAST3 xmit_interval="500"
xmit_table_num_rows="20"
xmit_table_msgs_per_row="10000"
xmit_table_max_compaction_time="10000"
max_msg_batch_size="100"
conn_expiry_timeout="0"/>
<pbcast.STABLE stability_delay="500" desired_avg_gossip="5000" max_bytes="1m"/>
<pbcast.GMS print_local_addr="false" join_timeout="3000" view_bundling="true"/>
<tom.TOA/> <!-- the TOA is only needed for total order transactions-->
<MFC max_credits="2m" min_threshold="0.40"/>
<FRAG2 frag_size="30k"/>
<RSVP timeout="60000" resend_interval="500" ack_on_delivery="false" />
</config>
My initial thought is that the problem may be with the bind_addr in the TCP and MPing elements. The two servers are on the same network and are able to ping each other. Anyone have any tips/insights on the configuration file above?
If it helps I've posted what's in the log file in regards to the Infinispan/JGroups startup below:
SERVER 1:
INFO JGroupsTransport - ISPN000078: Starting JGroups channel esrs
Nov 20, 2014 3:22:43 AM org.jgroups.logging.JDKLogImpl warn
WARNING: JGRP000014: Discovery.num_initial_members has been deprecated: will be ignored
INFO JGroupsTransport - ISPN000094: Received new cluster view for channel esrs: [udmesrs02-61057|0] (1) [udmesrs02-61057]
INFO JGroupsTransport - ISPN000079: Channel esrs local address is udmesrs02-61057
INFO GlobalComponentRegistry - ISPN000128: Infinispan version: Infinispan 'Guinness' 7.0.0.Final
SERVER 2:
INFO JGroupsTransport - ISPN000078: Starting JGroups channel esrs
Nov 20, 2014 3:20:28 AM org.jgroups.logging.JDKLogImpl warn
WARNING: JGRP000014: Discovery.num_initial_members has been deprecated: will be ignored
INFO JGroupsTransport - ISPN000094: Received new cluster view for channel esrs: [udmesrs01-16389|0] (1) [udmesrs01-16389]
INFO JGroupsTransport - ISPN000079: Channel esrs local address is udmesrs01-16389
INFO GlobalComponentRegistry - ISPN000128: Infinispan version: Infinispan 'Guinness' 7.0.0.Final
There are two possible issues: IPv4/IPv6 issues and UDP routing.
First try to set -Djava.net.preferIPv4Stack=true on both machines.
If that does not help, check your UDP firewall and routing settings.
If you don't find anything strange there, you'll have to use tcpdump on udp and port 43366 and tcp 7800 and see if there's any activity - there should be some multicast packet going from each node at least every 15 s.
I have set up a ITEAD sim900 GSM module to interface with raspberry pi. I believe I have established a gprs connection to AT&T though wvdial as I get these results.
--> WvDial: Internet dialer version 1.61
--> Initializing modem.
--> Sending: AT+CGDCONT=1,"IP","Broadband"
AT+CGDCONT=1,"IP","Broadband"
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
CONNECT
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Thu Aug 14 05:49:20 2014
--> Pid of pppd: 2794
I have been looking all over the internet for some answers to a few questions that I have, but I can't seem to find any. Any help with the following questions will be greatly appreciated! Thanks!
I have three questions, and some may be stupid as I am VERY new to this field.
Am I actually connected to AT&T's GPRS network?
How can I make this module (serial port /dev/ttyAMA0) my default internet connection? What I mean is I want all internet traffic routed through this modem(web surfing, email etc.). I am connected to the Raspberry via ssh so I have to have either ethernet or wifi active to access the computer--I am currently using ethernet. After I connect through wvdial in the way shown above, and disable all other internet sources I have no access. It seems to still be looking to the active ethernet port for data(I could be wrong).
For my project I need to have the sim900 modem as the internet access point, but I also need to be able to connect to a LAN via wifi that has no internet access. Is this possible?
Finally i got the ( raspberrypi + ppp + gprs/gsm-modem ) working.
Some notes before start:
Make sure the power supply you used for raspberrypi is exact 5V and it can provide at-least 2A current without voltage drop-out.The SIM900 power-source must be 3.3V 2A
Set the SIM900 baud rate to 115200 via: AT+IPR=115200
Check the modem serial peripheral via: $ screen /dev/ttyAMA0 115200 type AT<enter> it will echo: OK. Hit ctrl+a k y to exit.
/etc/ppp/options-mobile
ttyAMA0
115200
lock
crtscts
modem
passive
novj
defaultroute
replacedefaultroute
noipdefault
usepeerdns
noauth
hide-password
persist
holdoff 10
maxfail 0
debug
Create the /etc/ppp/peers directory:
$ mkdir /etc/ppp/peers
$ cd /etc/ppp/peers
/etc/ppp/peers/mobile-auth
file /etc/ppp/options-mobile
user "your_usr"
password "your_pass"
connect "/usr/sbin/chat -v -t15 -f /etc/ppp/chatscripts/mobile-modem.chat"
/etc/ppp/peers/mobile-noauth
file /etc/ppp/options-mobile
connect "/usr/sbin/chat -v -t15 -f /etc/ppp/chatscripts/mobile-modem.chat"
Create the /etc/ppp/chatscripts directory:
$ mkdir /etc/ppp/chatscripts
/etc/ppp/chatscripts/mobile-modem.chat
ABORT 'BUSY'
ABORT 'NO CARRIER'
ABORT 'VOICE'
ABORT 'NO DIALTONE'
ABORT 'NO DIAL TONE'
ABORT 'NO ANSWER'
ABORT 'DELAYED'
REPORT CONNECT
TIMEOUT 6
'' 'ATQ0'
'OK-AT-OK' 'ATZ'
TIMEOUT 3
'OK' #/etc/ppp/chatscripts/pin
'OK\d-AT-OK' 'ATI'
'OK' 'ATZ'
'OK' 'ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0'
'OK' #/etc/ppp/chatscripts/mode
'OK-AT-OK' #/etc/ppp/chatscripts/apn
'OK' 'ATDT*99***1#'
TIMEOUT 30
CONNECT ''
/etc/ppp/chatscripts/my-operator-apn
AT+CGDCONT=1,"IP","<apn-name>"
/etc/ppp/chatscripts/pin.CODE
AT+CPIN=1234
/etc/ppp/chatscripts/pin.NONE
AT
/etc/ppp/chatscripts/mode.3G-only
AT\^SYSCFG=14,2,3fffffff,0,1
/etc/ppp/chatscripts/mode.3G-pref
AT\^SYSCFG=2,2,3fffffff,0,1
/etc/ppp/chatscripts/mode.GPRS-only
AT\^SYSCFG=13,1,3fffffff,0,0
/etc/ppp/chatscripts/mode.GPRS-pref
AT\^SYSCFG=2,1,3fffffff,0,0
The SYSCFG line in the mode.* files is device-dependent, and likely Huawei-specific, So You may use the mode.NONE file if your modem is
SIM900.
*
/etc/ppp/chatscripts/mode.NONE
AT
Make some symbolic links:
$ ln -s /etc/ppp/chatscripts/my-operator-apn /etc/ppp/chatscripts/apn
$ ln -s /etc/ppp/chatscripts/mode.NONE /etc/ppp/chatscripts/mode
$ ln -s /etc/ppp/chatscripts/pin.NONE /etc/ppp/chatscripts/pin
If you have to enter credentials use mobile-auth
$ mv provider provider.example
$ ln -s /etc/ppp/peers/mobile-noauth /etc/ppp/peers/provider
Check syslog in another console:
$ tail -f /var/log/syslog | grep -Ei 'pppd|chat'
Finally issue the pon command to see the result:
$ pon
The base instruction : https://wiki.archlinux.org/index.php/3G_and_GPRS_modems_with_pppd