/etc/ppp/options
public text v1 · immutable/dev/ttyUSB1
115200
debug
noauth
noipdefault
#persist
defaultroute
usepeerdns
crtscts
lock
asyncmap 20A0000
kdebug 4
netmask 255.255.255.0
-detach
lcp-echo-failure 4
lcp-echo-interval 30
ipcp-max-failure 30
ipcp-max-configure 30
-ccp
-vj
#user li
#hide-password