troubleshoot:no_modem [TransData WIKI]

1) dame ifconfig a pozreme ci vrati pre interface ppp0 IP adresu

2) skusime ping na IP adresu modemu, ak nejde. pokracujeme dalej:

modem G24L

pri modemoch G24L, sa aktualne da dodat zistenie zablokovania SIMky a kvalita signalu tak, ze sa do odzalohovaneho suboru

/etc/ppp/chatscripts/ppp0

ABORT   BUSY
ABORT   "NO CARRIER"
ABORT   VOICE
ABORT   "NO DIALTONE"
ABORT   ERROR
""      AT
OK      AT+CGATT=0
OK      AT+CSQ
OK      AT+COPS=1,2,"23102"
OK      AT+CGDCONT=1,"IP","Dunajskastreda"
OK      ATD*99**1#
CONNECT ""

prikaz AT+CSQ a AT+CPIN? kvalita 0,99 asi znamena chybny modem. Ak CPIN? neda READY, je mozno zablokovana, alebo neinicializovana SIM karta.

prikaz AT+FMR? zisti verziu firmware modemu.

Treba spustit prikaz

syslogd

a logy su v subore:

cat /var/log/messages

Nezabudnite vratit nastavenie do povodneho stavu vratenim zalohy.

Ak je verzia systemu 2.7.3 a modem je nastaveny na G24Lv1, moze to sposobovat vypadky komunikacie.

[root@device /root]# cat /etc/version 
2.7.3
[root@device /root]# cat /mnt/sysfs/sysconf.xml 
<?xml version="1.0" encoding="ISO-8859-1"?>
<sysconf Note="System configuration" VersionMajor="2" VersionMinor="4">
        <network AccessLevel="5">
                        <ethernet Name="eth0" AssignMode="static" Primary="yes" Autoup="yes">
                                <ipv4 Address="192.168.12.60" Netmask="255.255.255.0" Broadcast="192.168.12.255" Gateway="" MultiCast="no"/>
                        </ethernet>
                        <wireless Name="wlan0" AssignMode="static">
                                <wlan Essid="ZyXEL03" Name="Wireless" Enc="532172404e23652443256d5e49" Password="" Mode="managed" Channel="7"/>
                                <ipv4 Address="192.168.100.133" Netmask="255.255.255.0" Broadcast="192.168.100.255" Gateway="" MultiCast="no"/>
                        </wireless>
                        <modem Name="ppp0" Modem="G24Lv1">
                                <gprs Pin="" Apn="Zilina" Oper="23102" User="" Passwd="" MTU="296"/>
                        </modem>
        </network>
        <misc>
                        <misc_I param1="912"/>
        </misc>
        <time WorldPart="Europe" Zone="Bratislava" NTPServer=""/>
</sysconf>