描述:
ppp可以拨号，但无法ping通，下面是拨号产生的log:
# pppd call quectel-ppp &
# pppd options in effect:
debug # (from /etc/ppp/peers/quectel-ppp)
nodetach # (from /etc/ppp/peers/quectel-ppp)
dump # (from /etc/ppp/peers/quectel-ppp)
noauth # (from /etc/ppp/peers/quectel-ppp)
user test # (from /etc/ppp/peers/quectel-ppp)
password ?????? # (from /etc/ppp/peers/quectel-ppp)
remotename 3gppp # (from /etc/ppp/peers/quectel-ppp)
/dev/ttyUSB3 # (from /etc/ppp/peers/quectel-ppp)
115200 # (from /etc/ppp/peers/quectel-ppp)
lock # (from /etc/ppp/peers/quectel-ppp)
connect chat -s -v -f /etc/ppp/peers/quectel-chat-connect # (from /etc/ppp/peers/quectel-ppp)
disconnect chat -s -v -f /etc/ppp/peers/quectel-chat-disconnect # (from /etc/ppp/peers/quectel-ppp)
nocrtscts # (from /etc/ppp/peers/quectel-ppp)
modem # (from /etc/ppp/peers/quectel-ppp)
hide-password # (from /etc/ppp/peers/quectel-ppp)
novj # (from /etc/ppp/peers/quectel-ppp)
novjccomp # (from /etc/ppp/peers/quectel-ppp)
ipcp-accept-local # (from /etc/ppp/peers/quectel-ppp)
ipcp-accept-remote # (from /etc/ppp/peers/quectel-ppp)
ipparam 3gppp # (from /etc/ppp/peers/quectel-ppp)
noipdefault # (from /etc/ppp/peers/quectel-ppp)
ipcp-max-failure 30 # (from /etc/ppp/peers/quectel-ppp)
defaultroute # (from /etc/ppp/peers/quectel-ppp)
usepeerdns # (from /etc/ppp/peers/quectel-ppp)
noccp # (from /etc/ppp/peers/quectel-ppp)
abort on (BUSY)
abort on (NO CARRIER)
abort on (NO DIALTONE)
abort on (ERROR)
abort on (NO ANSWER)
timeout set to 30 seconds
send (AT^M)
expect (OK)
AT^M^M
OK
-- got it
send (ATE0^M)
expect (OK)
^M
ATE0^M^M
OK
-- got it
send (ATI;+CSUB;+CSQ;+CPIN?;+COPS?;+CGREG?;&D2^M)
expect (OK)
^M
^M
Quectel^M
EC20^M
Revision: EC20CQDR02A05E2G^M
^M
SubEdition: V02^M
^M
+CSQ: 99,99^M
^M
+CPIN: READY^M
^M
+COPS: 0^M
^M
+CGREG: 0,0^M
^M
OK
-- got it
send (AT+CGDC />
expect (OK)
^M
^M
OK
-- got it
send (ATD*99#^M)
expect (CONNECT)
^M
^M
CONNECT
-- got it
Script chat -s -v -f /etc/ppp/peers/quectel-chat-connect finished (pid 229), status = 0x0
Serial connection established.
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB3
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xfba028ac> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x0 <asyncmap 0x0> <auth chap MD5> <magic 0x452ed763> <pcomp> <accomp>]
sent [LCP ConfAck id=0x0 <asyncmap 0x0> <auth chap MD5> <magic 0x452ed763> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xfba028ac> <pcomp> <accomp>]
rcvd [LCP DiscReq id=0x1 magic=0x452ed763]
rcvd [CHAP Challenge id=0x1 <a000d47ff0497537004849f5ce75169e>, name = "UMTS_CHAP_SRVR"]
sent [CHAP Response id=0x1 <98fc4e6639216c2bb622e8f643349cee>, name = "test"]
rcvd [CHAP Success id=0x1 ""]
CHAP authentication succeeded
CHAP authentication succeeded
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Modem hangup
Connection terminated.
另外，附上GSM加载的log:
# [ 9.180000] usb 1-1.4.3: new high-speed USB device number 6 using nxp-ehci
[ 9.292000] usb 1-1.4.3: New USB device found, idVendor=05c6, idProduct=9215
[ 9.300000] usb 1-1.4.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 9.308000] usb 1-1.4.3: Product: Quectel LTE Module
[ 9.312000] usb 1-1.4.3: Manufacturer: Quectel
[ 9.336000] option 1-1.4.3:1.0: GSM modem (1-port) converter detected
[ 9.344000] usb 1-1.4.3: GSM modem (1-port) converter now attached to ttyUSB0
[ 9.352000] option 1-1.4.3:1.1: GSM modem (1-port) converter detected
[ 9.372000] usb 1-1.4.3: GSM modem (1-port) converter now attached to ttyUSB1
[ 9.380000] option 1-1