CLM920_AC3 Module Linux Integration User Manual
Shanghai Yuge Information Technology Co., Ltd.
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Chapter 3. Dial-up Internet Process under
Linux System
1) Repeat the module's USB loading process and AT interaction process. Make sure the
module is properly registered to the network, the signal strength
CSQ
returns the first
parameter above 9
；
2) Verify that the Linux system comes with the
pppd
and chat executables. If the system
does not have
pppd
, install
kppp
with the
pppd
application (
pppd 2.4.3, pppd 2.4.5
recommended)
；
3) There are two ways to dial up the Internet.
：
a) Directly use the dialing script we provided
yuga.lte-pppd
(the default APN
is empty, can be set as needed)
，
Note the execution permission for the script
；
b) Write
pppd
script and chat script separately
：
(1)
/etc/ppp/peers/lte
file, as follows
：
# Usage: root>pppd call lte&
/dev/ttyUSB1
115200 crtscts
modem debug
nodetach
usepeerdns
noipdefault
defaultroute
usercard
passwordcard
connect '/usr/sbin/chat -s -v -f /etc/ppp/lte-connect-chat'
(2)
/etc/ppp/lte-connect-chat
file, as follows
：
#/etc/ppp/lte-connect-chat