Manually using GPRS
From Openmoko
m (Added Cingular WAP) |
(clean up to work for me too) |
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− | You need to have GSM parts already initialized, with modem logged in to the network, for this to work. It is best to test it by doing test call. | + | You need to have GSM parts already initialized, with modem logged in to the network, for this to work. It is best to test it by doing test call. The GPRS connection is made using the PPP protocol to a server identified by an "APN" at the network operator. |
− | + | Depending on the APN, you may need password authentication using CHAP or PAP. You can add the following default line for "password-less" connections: | |
− | + | ||
<pre> | <pre> | ||
− | |||
# client server secret IP addresses | # client server secret IP addresses | ||
− | + | * * "" * | |
− | + | ||
− | + | ||
− | + | ||
</pre> | </pre> | ||
+ | For CHAP, lines in /etc/ppp/chap-secrets are used. For PAP, the lines are in /etc/ppp/pap-secrets. The client should match the "user" option in pppd the config file (below). You can use * to mean any here, but the option user "" doesn't mean empty! | ||
+ | |||
+ | For example: | ||
+ | <pre> | ||
+ | # Secrets for authentication using CHAP | ||
+ | # client server secret IP addresses | ||
+ | * * "" * | ||
+ | "gprs" * "gprs" * | ||
+ | "eplus" * "gprs" * | ||
+ | </pre> | ||
− | You'll need /etc/ppp/gprs: | + | You'll need /etc/ppp/peers/gprs: |
<pre> | <pre> | ||
# File: | # File: | ||
Line 40: | Line 45: | ||
# Connect script | # Connect script | ||
− | connect /etc/ppp/gprs-connect-chat | + | connect /etc/ppp/peers/gprs-connect-chat |
# IP addresses: | # IP addresses: | ||
Line 47: | Line 52: | ||
# - if you use the 10. network at home or something and pppd rejects it, | # - if you use the 10. network at home or something and pppd rejects it, | ||
# change the address to something else | # change the address to something else | ||
− | : | + | :10.0.0.1 |
# pppd must not propose any IP address to the peer! | # pppd must not propose any IP address to the peer! | ||
Line 54: | Line 59: | ||
# Accept peers idea of our local address | # Accept peers idea of our local address | ||
ipcp-accept-local | ipcp-accept-local | ||
− | |||
− | |||
− | |||
# No ppp compression | # No ppp compression | ||
Line 63: | Line 65: | ||
# Disconnect script | # Disconnect script | ||
− | disconnect /etc/ppp/gprs-disconnect-chat | + | disconnect /etc/ppp/peers/gprs-disconnect-chat |
# Add default route | # Add default route | ||
defaultroute | defaultroute | ||
− | # | + | # very long timeouts (unwise?) |
lcp-echo-interval 300 | lcp-echo-interval 300 | ||
lcp-echo-failure 40000 | lcp-echo-failure 40000 | ||
+ | # don't require the other end to authenticate to us | ||
+ | noauth | ||
+ | |||
+ | # username to use for authentication, should match "client" in /etc/ppp/{chap,pap}-secrets | ||
user "gprs" ## opt out for eplus/pap | user "gprs" ## opt out for eplus/pap | ||
− | # | + | #user "eplus" ## opt in for eplus/pap |
− | + | ||
− | + | ||
</pre> | </pre> | ||
− | And you'll need /etc/ppp/gprs-connect-chat | + | |
+ | And you'll need /etc/ppp/peers/gprs-connect-chat (needs "chmod +x"): | ||
+ | |||
<pre> | <pre> | ||
#!/bin/sh | #!/bin/sh | ||
Line 131: | Line 137: | ||
SAY "try restarting the phone.\n" | SAY "try restarting the phone.\n" | ||
</pre> | </pre> | ||
− | You will need to adjust APN name in at+cgdcont line. Then, after initializing GSM, you should be to initialize GPRS by pppd | + | |
+ | You will need to adjust the APN name "internet" in at+cgdcont line to match what your network operator provides. | ||
+ | |||
+ | |||
+ | Also good to have is /etc/ppp/peers/gprs-connect-chat (needs "chmod +x"): | ||
+ | |||
+ | <pre> | ||
+ | #!/bin/sh | ||
+ | |||
+ | exec /usr/sbin/chat -V -s -S \ | ||
+ | ABORT "BUSY" \ | ||
+ | ABORT "ERROR" \ | ||
+ | ABORT "NO DIALTONE" \ | ||
+ | SAY "\nSending break to the modem\n" \ | ||
+ | "" "\K" \ | ||
+ | "" "\K" \ | ||
+ | "" "\K" \ | ||
+ | "" "+++ATH" \ | ||
+ | "" "+++ATH" \ | ||
+ | "" "+++ATH" \ | ||
+ | "NO CARRIER" "" \ | ||
+ | SAY "\nPDP context detached\n" | ||
+ | </pre> | ||
+ | |||
+ | Then, after initializing GSM, you should be able to initialize GPRS by pppd call gprs. Good luck! | ||
To dial in - and get verbose output - use pppd | To dial in - and get verbose output - use pppd | ||
<pre> | <pre> | ||
− | pppd debug | + | pppd debug call gprs |
</pre> | </pre> | ||
Line 155: | Line 185: | ||
|- | |- | ||
| USA || Cingular (AT&T) || Less than full internet || wap.cingular || | | USA || Cingular (AT&T) || Less than full internet || wap.cingular || | ||
+ | |- | ||
+ | | Finland || Sonera || Behind NAT || internet || | ||
+ | |- | ||
+ | | Finland || Sonera || Public IP || prointernet || | ||
|- | |- | ||
| Germany || T-Mobile || || internet.t-mobile || | | Germany || T-Mobile || || internet.t-mobile || |
Revision as of 15:57, 18 August 2007
You need to have GSM parts already initialized, with modem logged in to the network, for this to work. It is best to test it by doing test call. The GPRS connection is made using the PPP protocol to a server identified by an "APN" at the network operator.
Depending on the APN, you may need password authentication using CHAP or PAP. You can add the following default line for "password-less" connections:
# client server secret IP addresses * * "" *
For CHAP, lines in /etc/ppp/chap-secrets are used. For PAP, the lines are in /etc/ppp/pap-secrets. The client should match the "user" option in pppd the config file (below). You can use * to mean any here, but the option user "" doesn't mean empty!
For example:
# Secrets for authentication using CHAP # client server secret IP addresses * * "" * "gprs" * "gprs" * "eplus" * "gprs" *
You'll need /etc/ppp/peers/gprs:
# File: # gprs # # Description: # This file holds the serial cable and IrDA pppd options for GPRS phones # To give some debug info # debug # Serial device to which terminal is connected; /dev/ttySAC0 holdoff 3 # Serial port line speed 115200 # Hardware flow control needs to be used with serial cable. # With IrDA it should be disabled with nocrtscts option. crtscts # serial cable #nocrtscts # IrDA # To keep pppd on the terminal nodetach # Connect script connect /etc/ppp/peers/gprs-connect-chat # IP addresses: # - accept peers idea of our local address and set address peer as 10.0.0.1 # (any address would do, since IPCP gives 0.0.0.0 to it) # - if you use the 10. network at home or something and pppd rejects it, # change the address to something else :10.0.0.1 # pppd must not propose any IP address to the peer! noipdefault # Accept peers idea of our local address ipcp-accept-local # No ppp compression novj novjccomp # Disconnect script disconnect /etc/ppp/peers/gprs-disconnect-chat # Add default route defaultroute # very long timeouts (unwise?) lcp-echo-interval 300 lcp-echo-failure 40000 # don't require the other end to authenticate to us noauth # username to use for authentication, should match "client" in /etc/ppp/{chap,pap}-secrets user "gprs" ## opt out for eplus/pap #user "eplus" ## opt in for eplus/pap
And you'll need /etc/ppp/peers/gprs-connect-chat (needs "chmod +x"):
#!/bin/sh # # File: # chat-gprs-connect # # Description: # chat script to open Sonera GPRS service with GPRS phones. If ppp # negotiation stalls, try restarting the phone. To try with other GPRS # operator setting, change the PDP contex setting. The settings work with # all Ericsson models, but Nokia 8310 does not suppor QoS parameters with # AT commands, so just delete those lines and it'll work. # # Set PDP context CID=1, protocol=IP, APN=internet: # AT+CGDCONT=1,"IP","internet","",0,0 # # Set CID=1 QoS requirements from the network, not supported by 8310: # AT+CGQREQ=1,0,0,0,0,0 # # Set CID=1 minimum acceptable QoS parameters, not supported by 8310: # AT+CGQMIN=1,0,0,0,0,0 # # 'Call' CID=1 (activate PDP context one, perform GPRS attach): # ATD*99***1# # # was "internet.open.s" # # V connectu bylo "ip","internet" # The actual chat script: exec chat \ TIMEOUT 22 \ ECHO ON \ ABORT '\nBUSY\r' \ ABORT '\nERROR\r' \ ABORT '\nNO ANSWER\r' \ ABORT '\nNO CARRIER\r' \ ABORT '\nNO DIALTONE\r' \ ABORT '\nRINGING\r\n\r\nRINGING\r' \ SAY "Press CTRL-C to close the connection at any stage!" \ SAY "\ndefining PDP context...\n" \ "" "\d" \ "" "atz" \ OK "ate1" \ OK 'at+cgdcont=1,"ip","internet","0.0.0.0",0,0' \ TIMEOUT 22 \ OK ATDT*99***1# \ TIMEOUT 22 \ SAY "\nwaiting for connect...\n" \ CONNECT "" \ SAY "\nConnected." \ SAY "\nIf the following ppp negotiations fail,\n" \ SAY "try restarting the phone.\n"
You will need to adjust the APN name "internet" in at+cgdcont line to match what your network operator provides.
Also good to have is /etc/ppp/peers/gprs-connect-chat (needs "chmod +x"):
#!/bin/sh exec /usr/sbin/chat -V -s -S \ ABORT "BUSY" \ ABORT "ERROR" \ ABORT "NO DIALTONE" \ SAY "\nSending break to the modem\n" \ "" "\K" \ "" "\K" \ "" "\K" \ "" "+++ATH" \ "" "+++ATH" \ "" "+++ATH" \ "NO CARRIER" "" \ SAY "\nPDP context detached\n"
Then, after initializing GSM, you should be able to initialize GPRS by pppd call gprs. Good luck!
To dial in - and get verbose output - use pppd
pppd debug call gprs
Some APN names for reference:
Country | Carrier | Plan | APN | AT-CMD |
---|---|---|---|---|
USA | T-mobile | Anything less than full internet | wap.voicestream.com | |
USA | T-mobile | Regular internet plan | internet2.voicestream.com | |
USA | T-mobile | "VPN" internet plan | internet3.voicestream.com | |
USA | Cingular (AT&T) | Less than full internet | wap.cingular | |
Finland | Sonera | Behind NAT | internet | |
Finland | Sonera | Public IP | prointernet | |
Germany | T-Mobile | internet.t-mobile | ||
Germany | E-Plus | BASE (and others?) | internet.eplus.de | 'AT+CGDCONT=1,"ip","internet.eplus.de"' |
UK | T-Mobile | general.t-mobile.uk |