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Re: [leshan-dev] A question regarding Leshan demo web site
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I bet this could be because of :
https://github.com/eclipse/californium/pull/1397
See : https://tools.ietf.org/html/rfc6347#section-4.2.1
The default VERSION value changes which change default behavior,
but this changes follow a RFC recommendation so I'm not sure if
this will(or even should) be changed back ? (My guess is probably
not)
This is possible to change it using the API, see :
https://github.com/eclipse/californium/pull/1397/files#diff-3c57eeacb63a45e50c11737e09d3e166367773a093f2cb216e3ece81f2477597R1606
(but this will probably not changed on the sandbox)
Le 23/11/2020 à 16:17, Simon Bernard a
écrit :
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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