View source for How to connect 3G modem to Vera

[[Category:How_To]]
This guide applies to Vera units with firmware version starting with 1.5.622 and works only when the WAN&nbsp;port is not connected, and the modem is manually set to connect. <span>When the wire is plugged back, the WAN becomes the default gateway.</span> 

<br> Supported 3G Modems&nbsp;: <br> 
<pre>Huawei E153
ZTE MF180
ZTE MF667F </pre> 
== Instructions<br>  ==

Connect to the unit by ssh as explained [http://wiki.micasaverde.com/index.php/Logon_Vera_SSH here], then follow these steps:<br>

1. Disable network-autoconfigure<br>
<pre>rm /etc/cmh/fresh_install</pre>

1.2. Add 3G support in /usr/bin/GetNetworkState.sh script<br>
<pre>
wan)
                [[ "$(uci -P/var/state/ get network.3g.up 2>/dev/null)" == "1" ]] && { echo "UP"; exit; }
                
ip_wan)
                [[ "$(uci -P/var/state get network.wan.up 2>/dev/null)" != "0" ]] && [[ "$(uci -P/var/state get network.3g.up 2>/dev/null)" == "1" ]] && {
                                uci -P/var/state get network.3g.ipaddr 2>/dev/null
                                exit
                }

</pre>
1.3 Add 3G support in /usr/bin/Report_AP.sh
<pre>
#TODO - report if unit is in WifiClientMode                                                                                       
    WanIP="$(GetNetworkState.sh ip_wan)"                                                                                                  
    if [[ "$WanIP" == "" ]]; then 
</pre>
2. Plug in USB Modem in Vera <br> 

3. Check if the modem is insterted correctly and that vera can see it . 
<pre>gcom info /dev/ttyUSBx | x = 0 or 1 </pre> 
4. In /etc/config/network add the following&nbsp;: 
<pre>config 'interface' '3g'
        option 'ifname' 'ppp0'
        option 'device' '/dev/ttyUSB0'
        option 'apn' 'internet'
        option 'service' 'umts'
        option 'proto' '3g'
              </pre> 
If the modem has a PIN code add it&nbsp;:<br> 
<pre>  option 'pincode' '1234' </pre> 
If the modem requires an username and password set it&nbsp;:<br> 
<pre>  option username yourusername
  option password yourpassword
</pre> 
Save and exit 

<br> 

5. Check 3G chatscripts ( they are used for the method of connection ) 
<pre>cat /etc/chatscripts/3g.chat

    ABORT   BUSY
&nbsp;&nbsp;&nbsp; ABORT&nbsp;&nbsp; 'NO CARRIER'
&nbsp;&nbsp;&nbsp; ABORT&nbsp;&nbsp; ERROR
&nbsp;&nbsp;&nbsp; REPORT&nbsp; CONNECT
&nbsp;&nbsp;&nbsp; TIMEOUT 10
&nbsp;&nbsp;&nbsp; ""&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "AT+CSQ"
&nbsp;&nbsp;&nbsp; OK&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "ATE1"
&nbsp;&nbsp;&nbsp; OK&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 'AT+CGDCONT=1,"IP","$USE_APN"'
&nbsp;&nbsp;&nbsp; SAY&nbsp;&nbsp;&nbsp;&nbsp; "Calling UMTS/GPRS"
&nbsp;&nbsp;&nbsp; TIMEOUT 30
&nbsp;&nbsp;&nbsp; OK&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "ATD*99***1#"
&nbsp;&nbsp;&nbsp; CONNECT ' '
</pre> 
<br> Settings should be like the ones above. 

<br> 5. Restart network (be sure to on lan conected to it , not by wan&nbsp;!! IT will not show debugging info ) 
<pre>/etc/init.d/network restart

    BRIDGE ADDBR&nbsp;: brctl addbr br-lan
    BRIDGE ADDIF br-lan eth0.1
    BRIDGE ADDIF&nbsp;: brctl addif br-lan wlan0
    BRIDGE DELIF&nbsp;: brctl delif br-lan
    Configuration file: /var/run/hostapd-phy0.conf
    Using interface wlan0 with hwaddr 00:0e:XX:XX:XX:XX and ssid 'mios_wifi'
    BRIDGE DELIF&nbsp;: brctl delif br-lan wlan0
    BRIDGE ADDIF&nbsp;: brctl addif br-lan wlan0
</pre> 
6. Watch logread with the following parameters&nbsp;: 
<pre>logread -f | grep local2.info </pre> 
It should be like this 
<pre>    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: abort on (BUSY)
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: abort on (NO CARRIER)
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: abort on (ERROR)
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: report (CONNECT)
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: timeout set to 10 seconds
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: send (AT+CSQ^M)
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: expect (OK)
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: AT+CSQ^M^M
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: +CSQ: 24,99^M
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: ^M
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: OK
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]:  -- got it
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: send (ATE1^M)
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: expect (OK)
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: ^M
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: ATE1^M^M
    Feb 15 04:18:15 MiOS_3xxxxxxx local2.info chat[11495]: OK
</pre> 
<br> 7. Check ifconfig 

<br> 

          3g-wan    Link encap:Point-to-Point Protocol
 inet addr:172.XXX.XXX.XXX  P-t-P:10.XXX.XXX.XXX  Mask:255.255.255.255
 UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
 RX packets:2671 errors:0 dropped:0 overruns:0 frame:0
 TX packets:2449 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 txqueuelen:3
 RX bytes:1025131 (1001.1 KiB)  TX bytes:717822 (700.9 KiB)

<br> 8. Stop and start 3G 

To stop it&nbsp;:<br> 
<pre>ifdown wan 
</pre> 
To start it&nbsp;&nbsp;:<br> 
<pre>ifup wan </pre> 
&nbsp; If you encounter any issues you can check the logs at&nbsp;:<br> 
<pre>logread -f | grep local2.info </pre>

== <br>&nbsp;Possible issues&nbsp;:<br>  ==

'''1.''' Not being able to connect to the modem (on /etc/init.d/network restart -&gt; no such device)<br> 

'''Cause&nbsp;''': <br> 

USB port miss-configuration <br> 

'''Resolution ''': 

Type the code below until the USB modem is detected 
<pre>gcom info /dev/ttyUSBx 
</pre> 
Then update the option 'device' '/dev/ttyUSB0' in 
<pre>/etc/config/network </pre> 
'''2.''' 3G (error) PIN code incorrect&nbsp;: 

Be sure to set the PIN if it has one, or if it doesn't have one dont set it at all. 

'''3.''' Remote access doesn't work anymore&nbsp;: 

Certain providers block the remote access port, so the unit can't connect anymore to the remote access server. 

A possible solution would be to check "FailSafe Tunnels" from Setup &gt; Net&amp;Wifi page on the user interface.<br> 

<br> <br> 

<br> 

<br> 

<br>