Advantech UTX-3115 - HE910 PCI Express Mini Card module cellular module

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# lsusb

Bus 001 Device 004: ID 8087:07dc Intel Corp.

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

Bus 001 Device 003: ID 0424:2512 Standard Microsystems Corp. USB 2.0 Hub

Bus 001 Device 002: ID 258a:0001

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

root@WR-IDP-E2EB:~# cat /etc/config/network

config interface 'loopback'

        option ifname 'lo'

        option proto 'static'

        option ipaddr '127.0.0.1'

        option netmask '255.0.0.0'

config interface 'wan'

        option ifname 'eth0'

        option proto 'dhcp'

config interface 'lan'

        option ifname 'wlan0'

        option type 'bridge'

        option proto 'static'

        option ipaddr '192.168.1.1'

        option netmask '255.255.255.0'

config interface 'wwan'

        option ifname '3g-wwan'

        option device '/dev/ttyACM0'

        option ppp_redial 'demand'

        option defaultroute '1'

        option peerdns '1'

        option service 'umts_first'

        option sconnservice 'UMTS'

        option dialnumber '*99***1#'

        option proto 'none'

config device 'modem_cell'

        option name 'modem_cell'

        option present 'No'

config device 'sim_card'

        option name 'sim_card'

        option present 'No'

root@WR-IDP-E2EB:~# cat /etc/modem_cell_default

# This file includes all the modems information supported default

# Manufacturer|Production|ManufacturerID|ProductID|ConnectionType|pppdDevice|stateDevice

# Ericsson|F5521gw|0bdb|190d|3g|ttyACM0|ttyACM1

Telit|HE910|1bc7|0021|3g|ttyACM0|ttyACM3

Dell|DW5580|413c|81ba|3g|ttyACM0|ttyACM3

Dell|DW5812|413c|81bb|3g|ttyACM0|ttyACM0

root@WR-IDP-E2EB:~#

Hi Mohamedshaharris_intel,

I got to the point where Telit HE910 G PCIe modem is getting detected.

lsusb shows the TElit Modem.

I see the following devices being created.

/dev/ttyACM0 .../dev/ttyACM5

/dev/ttyACM0 is the serial and /dev/ttyACM3 is the device.

I could send AT command and get reply on /dev/ttyACM0.

i see pppd running on 3g-wwan interface. i see 3g-wwan interface getting dynamic ip address from AT&T Service provider.

I see both local and peer ip address are the same.

/var/log/ppp-3g.log shows that ppp connection is established.

But the problem i'm facing now is that ping is failing on 3g-wwan interface. Not sure why. I see there is a default route.

I can't ping 8.8.8.8 through interface 3g-wwan

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# netstat -rn

Kernel IP routing table

Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface

0.0.0.0         10.125.119.189  0.0.0.0         UG        0 0          0 3g-wwan

192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 br-lan

192.168.21.0    0.0.0.0         255.255.255.0   U         0 0          0 eth0

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# ifconfig | grep wwan -A20

3g-wwan   Link encap:Point-to-Point Protocol

          inet addr:10.125.119.189  P-t-P:10.125.119.189  Mask:255.255.255.255

          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1

          RX packets:39 errors:0 dropped:0 overruns:0 frame:0

          TX packets:248 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:3

          RX bytes:3248 (3.1 KiB)  TX bytes:27403 (26.7 KiB)

br-lan    Link encap:Ethernet  HWaddr ac:fd:ce:03:4d:b9

          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0

          inet6 addr: fe80::aefd:ceff:fe03:4db9/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:25 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:0 (0.0 B)  TX bytes:2286 (2.2 KiB)

eth0      Link encap:Ethernet  HWaddr 00:0b:ab:98:e2:eb

          inet addr:192.168.21.12  Bcast:192.168.21.255  Mask:255.255.255.0

          inet6 addr: fe80::20b:abff:fe98:e2eb/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

root@WR-IDP-E2EB:~# ping -c 4 -I 3g-wwan 8.8.8.8

PING 8.8.8.8 (8.8.8.8) from 10.125.119.189 3g-wwan: 56(84) bytes of data.

--- 8.8.8.8 ping statistics ---

4 packets transmitted, 0 received, 100% packet loss, time 3009ms

root@WR-IDP-E2EB:~# cat /var/log/ppp-3g.log

Removed stale lock on ttyACM0 (pid 12329)

abort on (BUSY)

abort on (NO CARRIER)

abort on (VOICE)

abort on (NO DIALTONE)

abort on (NO DIAL TONE)

abort on (NO ANSWER)

abort on (DELAYED)

abort on (ERROR)

Initializing

send (ATZ^M)

expect (OK)

ATZ^M^M

OK

-- got it

send (AT+CGDCONT=1,"IP","wap.cingular"^M)

expect (OK)

^M

AT+CGDCONT=1,"IP","wap.cingular"^M^M

OK

-- got it

send (AT+CFUN=1^M)

expect (OK)

^M

AT+CFUN=1^M^M

OK

-- got it

send (AT^M)

expect (OK)

^M

AT^M^M

OK

-- got it

send (ATD*99***1#^M)

timeout set to 120 seconds

expect (CONNECT)

^M

ATD*99***1#^M^M

CONNECT

-- got it

send ( ^M)

Serial connection established.

Using interface 3g-wwan

Connect: 3g-wwan <--> /dev/ttyACM0

local  IP address 10.125.119.189

remote IP address 10.125.119.189

primary   DNS address 172.26.38.1

root@WR-IDP-E2EB:~# ping -c 4 -I 3g-wwan 8.8.8.8

PING 8.8.8.8 (8.8.8.8) from 10.125.119.189 3g-wwan: 56(84) bytes of data.

--- 8.8.8.8 ping statistics ---

4 packets transmitted, 0 received, 100% packet loss, time 3000ms

root@WR-IDP-E2EB:~# ping -c 4 -I 3g-wwan 172.26.38.1

PING 172.26.38.1 (172.26.38.1) from 10.125.119.189 3g-wwan: 56(84) bytes of data.

--- 172.26.38.1 ping statistics ---

4 packets transmitted, 0 received, 100% packet loss, time 3000ms

root@WR-IDP-E2EB:~# ping -c 4 -I 3g-wwan 10.125.119.189

PING 10.125.119.189 (10.125.119.189) from 10.125.119.189 3g-wwan: 56(84) bytes of data.

64 bytes from 10.125.119.189: icmp_seq=1 ttl=64 time=0.565 ms

64 bytes from 10.125.119.189: icmp_seq=2 ttl=64 time=0.159 ms

64 bytes from 10.125.119.189: icmp_seq=3 ttl=64 time=0.159 ms

64 bytes from 10.125.119.189: icmp_seq=4 ttl=64 time=0.158 ms

--- 10.125.119.189 ping statistics ---

4 packets transmitted, 4 received, 0% packet loss, time 3002ms

rtt min/avg/max/mdev = 0.158/0.260/0.565/0.176 ms

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# netstat -rn

Kernel IP routing table

Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface

0.0.0.0         10.125.119.189  0.0.0.0         UG        0 0          0 3g-wwan

192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 br-lan

192.168.21.0    0.0.0.0         255.255.255.0   U         0 0          0 eth0

root@WR-IDP-E2EB:~#

i see ppp running on 3g-wwan interface

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# ps aux | grep pp

root     12076  0.0  0.0  18264  1804 ?        Ss   22:19   0:00 /bin/sh /etc/rc.common /sbin/netifd-systemd-wrapper start

root     12333  0.0  0.0  21940  1236 ?        S    22:19   0:00 /usr/sbin/pppd nodetach ipparam wwan ifname 3g-wwan logfile /var/log/ppp-3g.log nodefaultroute usepeerdns persist maxfail 1 connect USE_APN=wap.cingular /usr/sbin/chat -t5 -v -s -S -E -f /etc/chatscripts/3g.chat ip-up-script /lib/netifd/ppp-up ipv6-up-script /lib/netifd/ppp-up ip-down-script /lib/netifd/ppp-down ipv6-down-script /lib/netifd/ppp-down noipdefault noaccomp nopcomp novj nobsdcomp noauth lock crtscts 115200 /dev/ttyACM0

root     13532  0.0  0.0   4400   500 pts/0    S+   22:36   0:00 grep pp

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# ls /dev/ttyA*

/dev/ttyACM0  /dev/ttyACM1  /dev/ttyACM2  /dev/ttyACM3  /dev/ttyACM4  /dev/ttyACM5  /dev/ttyACM6

root@WR-IDP-E2EB:~# tail -10 /var/log/ppp-3g.log

CONNECT

-- got it

send ( ^M)

Serial connection established.

Using interface 3g-wwan

Connect: 3g-wwan <--> /dev/ttyACM0

local  IP address 10.125.119.189

remote IP address 10.125.119.189

primary   DNS address 172.26.38.1

root@WR-IDP-E2EB:~# traceroute -i 3g-wwan 10.125.119.189

traceroute to 10.125.119.189 (10.125.119.189), 30 hops max, 46 byte packets

1  10.125.119.189 (10.125.119.189)  0.036 ms  0.024 ms  0.032 ms

root@WR-IDP-E2EB:~# traceroute -i 3g-wwan 172.26.38.1

traceroute to 172.26.38.1 (172.26.38.1), 30 hops max, 46 byte packets

1  *  *  *

2  *  *  *

3

^C

root@WR-IDP-E2EB:~# traceroute -i 3g-wwan 8.8.8.8

traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 46 byte packets

1  *  *  *

2  *^C

root@WR-IDP-E2EB:~#

I ran tcpdump on 3g-wwan interface and found that there are lots of outgoing packets and no incoming packets.

i pinged 8.8.8.8 on 3g-wwan interface. All 4 ping packets did not get response.

root@WR-IDP-E2EB:~# ping -c 4 -I 3g-wwan 8.8.8.8

PING 8.8.8.8 (8.8.8.8) from 10.216.11.32 3g-wwan: 56(84) bytes of data.

--- 8.8.8.8 ping statistics ---

4 packets transmitted, 0 received, 100% packet loss, time 3000ms

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# tcpdump -i 3g-wwan -np

tcpdump: verbose output suppressed, use -v or -vv for full protocol decode

listening on 3g-wwan, link-type LINUX_SLL (Linux cooked), capture size 262144 bytes

18:24:20.121923 IP 10.216.11.32.52998 > 104.245.33.76.123: NTPv4, Client, length 48

18:24:30.340547 IP 10.216.11.32.40743 > 209.202.167.189.443: Flags [FP.], seq 2187954222:2187954311, ack 2709331868, win 229, options [nop,nop,TS val 1614464 ecr 796105537], length 89

18:24:30.371996 IP 10.216.11.32.48447 > 69.167.160.102.123: NTPv4, Client, length 48

18:24:33.869981 IP 10.216.11.32 > 8.8.8.8: ICMP echo request, id 3566, seq 1, length 64

18:24:34.870719 IP 10.216.11.32 > 8.8.8.8: ICMP echo request, id 3566, seq 2, length 64

18:24:35.870161 IP 10.216.11.32 > 8.8.8.8: ICMP echo request, id 3566, seq 3, length 64

18:24:36.870570 IP 10.216.11.32 > 8.8.8.8: ICMP echo request, id 3566, seq 4, length 64

18:24:40.623908 IP 10.216.11.32.24491 > 172.26.38.1.53: 47519+ A? 0.pool.ntp.org. (32)

18:24:40.674519 IP 10.216.11.32.51496 > 69.89.207.99.123: NTPv4, Client, length 48

Disabled the firewall and still do not see ping go through 3g-wwan interface.

traceroute shows outgoing packets and no incoming packets on 3g-wwan interface.

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# iptables --flush

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# ping -c 4 -I 3g-wwan 8.8.8.8

PING 8.8.8.8 (8.8.8.8) from 10.216.11.32 3g-wwan: 56(84) bytes of data.

--- 8.8.8.8 ping statistics ---

4 packets transmitted, 0 received, 100% packet loss, time 3000ms

root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# tcpdump -i 3g-wwan -np

tcpdump: verbose output suppressed, use -v or -vv for full protocol decode

listening on 3g-wwan, link-type LINUX_SLL (Linux cooked), capture size 262144 bytes

19:31:00.826207 IP 10.216.11.32 > 8.8.8.8: ICMP echo request, id 7273, seq 1, length 64

19:31:01.826574 IP 10.216.11.32 > 8.8.8.8: ICMP echo request, id 7273, seq 2, length 64

19:31:02.084446 IP 10.216.11.32.40980 > 209.202.167.189.443: Flags [FP.], seq 720095523:720095612, ack 3627251267, win 229, options [nop,nop,TS val 5606208 ecr 797101598], length 89

19:31:02.826596 IP 10.216.11.32 > 8.8.8.8: ICMP echo request, id 7273, seq 3, length 64

19:31:03.826658 IP 10.216.11.32 > 8.8.8.8: ICMP echo request, id 7273, seq 4, length 64

19:31:05.640322 IP 10.216.11.32.40984 > 209.202.167.189.443: Flags [S], seq 1144215539, win 2

curl -L URL  does not follow the redirect. I get the AT&T Free Text msg.

root@WR-IDP-E2EB:~# curl -L http://www.google.com

<!DOCTYPE html

        PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

         "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US">

<head>

<title>Page was redirected.</title>

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />

</head>

<body>

AT&T Free Msg: It looks like you want to use data but have none available. You may need to add a data package, refill to use pay-per-use data or change to a plan that supports data. To check your plan and manage your account, start at <a href="http://att.com/mygophone">att.com/mygophone</a>. If you just made a payment for your monthly plan with data, power your device off and back on, then try again.

</body>

</html>root@WR-IDP-E2EB:~#

root@WR-IDP-E2EB:~# curl -v http://google.co.in

* Rebuilt URL to: http://google.co.in/

* Hostname was NOT found in DNS cache

*   Trying 216.58.195.227...

*   Trying 2607:f8b0:4005:806::2003...

* Immediate connect fail for 2607:f8b0:4005:806::2003: Invalid argument

* Connected to google.co.in (216.58.195.227) port 80 (#0)

> GET / HTTP/1.1

> User-Agent: curl/7.37.1

> Host: google.co.in

> Accept: */*

>

< HTTP/1.1 302 Found

< Location: http://redirect.ac.sl.attcompute.com/cgi-bin/redirect.cgi?msg=2

< Content-Type: text/html; charset=iso-8859-1

< Proxy-Connection: close

* no chunk, no close, no size. Assume close to signal end

<

* Closing connection 0

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