Need help setting up PPP with Telit HE-910

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  • Updated 2 years ago
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  • (Edited)
Got a Telit HE-910 mini PCIe card that I've placed into the socket on a ARM Cortex-A9 board that we have designed in house. The ARM board is running Linux. I've got PPP enabled in the kernel build, and the pppd is present.

I've created a PPP options file as well as a chat script that brings the modem to life, dials, etc.

In the ppp debug messages ( posted at the very end of this message ), I can see our system authenicating with the server at neo.it.net. Shortly after authenticating, the connection is dropped from the NEO end. I have attempted to decode the ppp debug messages to no avail and could use some help getting this thing connected.

If needed, I can post my ppp options file contents along with the chatscript used to establish the connection.

The PPP debug messages are:

Serial connection established.using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyACM0
rcvd [LCP ConfReq id=0x1 ]
sent [LCP ConfReq id=0x1 ]
sent [LCP ConfAck id=0x1 ]
rcvd [LCP ConfAck id=0x1 ]
sent [LCP EchoReq id=0x0 magic=0x24bd6e81]
sent [PAP AuthReq id=0x1 user="xxxxxxxxxxx"
password="xxxxxxxxxxxxxxx"]

rcvd [LCP EchoRep id=0x0 magic=0x20e5a83d]
rcvd [PAP AuthAck id=0x1 ""]
PAP authentication succeeded
sent [CCP ConfReq id=0x1 ]
sent [IPCP ConfReq id=0x1 ]
rcvd [LCP ProtRej id=0x2 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15]
Protocol-Reject for 'Compression Control Protocol' (0x80fd) received
sent [LCP EchoReq id=0x1 magic=0x24bd6e81]
sent [IPCP ConfReq id=0x1 ]
rcvd [LCP EchoRep id=0x1 magic=0x20e5a83d]
rcvd [LCP TermReq id=0x3 "User request"]
LCP terminated by peer (User request)
sent [LCP TermAck id=0x3]
Connection terminated.
Modem hangup

Any help getting this resolved would be greatly appreciated.
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George Hilliard

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Posted 2 years ago

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Norma Pavao, Official Rep

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George,

We are looking into your issue, while we do that can you clarify the APN mentioned? In your post you mentioned the APN "neo.it.net" can you confirm if this is a typo and the intended correct APN is neo.iot.net?

Regards,
Norma
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George Hilliard

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Changed the chat script to correct the APN name and that has allowed the system to connect, and receive an IP address, so that part is good. Now how does one go about setting up DNS so that the modem can be used to connect to opther internet sites?

BTW - thanks for your assistance.
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George Hilliard

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Never mind - I saw on a reboot that the DNS servers got setup and all is good. Thanks.
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Norma Pavao, Official Rep

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Thank you for the update George, I was researching your question, but glad to hear it is now resolved. 

Regards,
Norma
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George Hilliard

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Norma,

Is there any way to edit the very 1st post in this thread to remove the account name and password details displayed in the ppp debug messages?

Thanks
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Bob Heckmann, Official Rep

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Hi George,

Per your request, account and password have been edited out of your post.

Regards,
Bob

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