Hi, Simon.
Thank you very much for taking care of this issue.
I think, that the best way to debug it, is to undo the changes made on Thursday, and let me connect again.
When it (hopefully}) succeeds, you can compare the logs.
Thank you,
Mark
From: Simon Bernard [mailto:contact@xxxxxxxxxxxxxxx]
Sent: Monday, November 23, 2020 5:17 PM
To: Mark Lugovskoy <mark.lugovskoy-ext@xxxxxxx>; Thomas LE ROUX <thomas.leroux@xxxxxxxx>; leshan developer discussions <leshan-dev@xxxxxxxxxxx>
Subject: Re: [leshan-dev] A question regarding Leshan demo web site
We succeed to get a capture. I joined it.
Your device sounds to not answer to HELLO_VERIFY_REQUEST from the server.
I guess there is some changes about this at Californium side. I will open a ticket to discuss about this. Please do not hesitate to join the discussion.
Le 23/11/2020 à 15:36, Simon Bernard a écrit :
Hi,
You can eventually run leshan-server-demo locally and so run wireshark at server side.
Or Eventually, I can try to do a capture at server side. (as there is not so much traffic) I'm currently running a tcpdump on the sandbox. If you make your device communicate now I can see the exchange.
(This will maybe be complicated to synchronize ourself, I will let the tcpdump capturing for the next hour but I will stop it before the end of the day)
Simon
Le 23/11/2020 à 15:00, Mark Lugovskoy a écrit :
Hi,
I tried to connect using this sequence of commands from GSM modem:
AT#LWM2MINJKEYS=0,1,"mark123456","mark123456","0987654321"
AT#LWM2MSTS=0,999,"coaps://leshan.eclipseprojects.io:5784",1
at#reboot
AT#LWM2MENA=1
With this sequence, I managed to connect until Thursday after noon. In the evening I already couldn’t connect.
I pretty much use my GSM modem as black box, so I can’t provide much more details. I also don’t have Wireshark.
I’ll try to find more information that you asked.
Thank you,
Mark
From: Thomas LE ROUX [mailto:thomas.leroux@xxxxxxxx]
Sent: Monday, November 23, 2020 3:33 PM
To: leshan developer discussions <leshan-dev@xxxxxxxxxxx>
Cc: Mark Lugovskoy <mark.lugovskoy-ext@xxxxxxx>
Subject: Re: [leshan-dev] A question regarding Leshan demo web site
There must be something wrong with either your computer's networking options, the sequence of command you used, registration to the server (wrong key, or a device with the same identity is registered with a wrong key. You can check this
out at
https://leshan.eclipseprojects.io/#/security) or something else.
Hi,
Is there some problem with this server?
It should not. But you maybe found a bug ?
Thursday I integrated in master (and so applied on Leshan sandbox) some commits about integration of the new Californium version, there is maybe a regression with this. (Californium itself or my modifications)
This could help if you provide more context. (which client used ? DTLS or not ?, if DTLS, rpk psk or x509 ? providing wireshark capture or log could help too)
If you prefer you can use github issue ? (Mailing list is fine too)
Simon
Le 23/11/2020 à 13:17, Mark Lugovskoy a écrit :
Hi,
Last week I connected with my device successfully to the demo LESHAN server:
https://leshan.eclipseprojects.io/#/clients.
But since Thursday I can’t connect to it, with the same sequence of commands that I used before.
Is there some problem with this server?
Thank you,
Mark
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