Skip to main content
Home
for DLMS smart meters
Open source solutions for DLMS smart metering

Main navigation

  • Home
  • Products
  • About us
  • Open Source
  • Community
  • Forum
  • Downloads
User account menu
  • Log in

Breadcrumb

  1. Home
  2. Node
  3. Can Not Connect With The Meter In AUTHENTICATION_ENCRYPTION Mode

Can not connect with the Meter in AUTHENTICATION_ENCRYPTION Mode

Forum Rules

Before commenting read Forum rules

Don't comment the topic if you have a new question.

You can create a new topic selecting correct category from Gurux Forum and then create a new topic selecting "New Topic" from the top left.

By Mohammed Hassa… , 9 August, 2022
Forums
Gurux DLMS for Java

I'm trying to a meter using an optical head with the following parameters:-
----------------------------------------------------------
client.setInterfaceType(InterfaceType.HDLC);
client.setClientAddress(*);
client.setAuthentication(Authentication.HIGH_GMAC);
client.setServiceClass(ServiceClass.CONFIRMED);
client.getCiphering().setSecurity(Security.AUTHENTICATION_ENCRYPTION);
client.getCiphering().setSystemTitle(GXCommon.hexToBytes("****************")); client.getCiphering().setBlockCipherKey(GXCommon.hexToBytes("****************"));
client.getCiphering().setAuthenticationKey(GXCommon.hexToBytes("****************"));
client.setServerAddress(*);
----------------------------------------------------------
The SNMR request was done successfully, but the association always failed
with the following message:-
----------------------------------------------------------
RX: 7E A0 10 03 02 E7 30 6A C6 E6 E7 00 D8 01 01 3C 43 7E
----------------------------------------------------------
Any idea of what should I change?
Note: I've connected successfully with the meter with the same kyes, but I can't compare the message because it's a closed-source executable.

Profile picture for user Kurumi

Kurumi

4 years 1 month ago

Hi,

Hi,

Can you get a hex trace from the other app so I can check the settings from the bytes?
It also helps if you can send the block cipher and authentication keys to me by email so I can verify everything.

BR,
Mikko

  • Create new account
  • Reset your password

Hire Us!

Latest Releases

  • Wed, 08/26/2026 - 09:04
    Gurux.DLMS.Python 1.0.203
  • Mon, 08/17/2026 - 11:28
    Gurux.DLMS.Python 1.0.202
  • Mon, 08/17/2026 - 09:47
    gurux.dlms.cpp 9.0.2608.1701
  • Mon, 08/17/2026 - 09:25
    gurux.dlms.c 9.0.2608.1701
  • Mon, 07/27/2026 - 12:37
    gurux.dlms.cpp 9.0.2607.2701

New forum topics

  • Security vulnerability report — request for a private contact (GuruxDLMS.c / ANSI C)
  • Topic: Insufficient Memory Error When Reading Class 7 Profile Generic Objects
  • SN ReadResponse returns all-null values when response spans multiple HDLC frames
  • Gurux.Serial.Android 3.0.6 – CH340 (HL-340) USB-Serial Adapter Not Working,
  • Trying to talk to a L&G E360 meter (Using Python Gurux)
More

Who's new

  • cyby
  • Metin Onan
  • ssv007
  • 3nzol3dur
  • dw772
RSS feed
Privacy FAQ GXDN Issues Contact
Follow Gurux on Twitter Follow Gurux on Linkedin