Skip to main content
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [leshan-dev] A question regarding Leshan demo web site

Hi together,

 

there is a DtlsConfiguration.Builder.setProtocolVersionForHelloVerifyRequests.

That may help out.

It’s always not too easy, to fix something according a RFC, if some implementations are used to behave different ;-).

 

Mit freundlichen Grüßen / Best regards

Achim Kraus

Bosch IoT Hub - Product Area IoT Platform (IOC/PAP-HU)
Bosch.IO GmbH | Stuttgarter Straße 130 | 71332 Waiblingen | GERMANY | www.bosch.io

Sitz: Berlin, Registergericht: Amtsgericht Charlottenburg; HRB 148411 B
Aufsichtsratsvorsitzender: Dr.-Ing. Thorsten Lücke; Geschäftsführung: Dr. Stefan Ferber, Dr. Aleksandar Mitrovic, Yvonne Reckling

​

Von: leshan-dev-bounces@xxxxxxxxxxx <leshan-dev-bounces@xxxxxxxxxxx> Im Auftrag von Simon Bernard
Gesendet: Montag, 23. November 2020 16:40
An: Mark Lugovskoy <mark.lugovskoy-ext@xxxxxxx>; Thomas LE ROUX <thomas.leroux@xxxxxxxx>; leshan developer discussions <leshan-dev@xxxxxxxxxxx>
Betreff: Re: [leshan-dev] A question regarding Leshan demo web site

 

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

 

Hi !

 

I've just tried and succeeded to connect to https://leshan.eclipseprojects.io/#/clients (IP : 23.97.187.154) using a DTLS w/ PSK.

 

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.

 

Good luck !

 

Best regards,

 

Thomas

 

On Mon, Nov 23, 2020 at 2:20 PM Simon Bernard <contact@xxxxxxxxxxxxxxx> wrote:

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

 

_______________________________________________
leshan-dev mailing list
leshan-dev@xxxxxxxxxxx
To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/leshan-dev

_______________________________________________
leshan-dev mailing list
leshan-dev@xxxxxxxxxxx
To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/leshan-dev



_______________________________________________
leshan-dev mailing list
leshan-dev@xxxxxxxxxxx
To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/leshan-dev

Back to the top