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. Stopped Working HighGmac With Security Settings Authentication

Stopped working highGmac with security settings Authentication

By JavierDiaz , 14 August, 2024
Forums
DLMSDirector

I use GXDirector version 8.

In SecureSetup write value Policy = AuthenticatedRequest+AuthenticatedResponse.

Step 1.
In GXDirector on tab SecuredConnection set Security=Authentication. Authorization result - success.

16:08:10 Send SNRM request.
TX: 7E A0 0A 00 02 F0 21 21 93 8B B3 7E
16:08:10
RX: 7E A0 21 21 00 02 F0 21 73 C9 4D 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
16:08:10 Send AARQ request.
TX: 7E A0 2E 00 02 F0 21 21 10 ED 09 E6 E6 00 60 1D A1 09 06 07 60 85 74 05 08 01 01 BE 10 04 0E 01 00 00 00 06 5F 1F 04 00 62 1E 5D FF FF 88 55 7E
16:08:10
RX: 7E A0 3A 21 00 02 F0 21 30 1D FE E6 E7 00 61 29 A1 09 06 07 60 85 74 05 08 01 01 A2 03 02 01 00 A3 05 A1 03 02 01 00 BE 10 04 0E 08 00 06 5F 1F 04 00 00 10 10 04 00 00 07 36 E3 7E
16:08:11
RX: 7E A0 18 21 00 02 F0 21 52 31 EA E6 E7 00 C4 01 C1 00 06 00 00 07 A1 F6 E1 7E
16:08:11 Disconnect request
TX: 7E A0 0A 00 02 F0 21 21 53 87 75 7E
16:08:11
RX: 7E A0 21 21 00 02 F0 21 73 C9 4D 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
16:08:11 Send SNRM request.
TX: 7E A0 0A 00 02 F0 21 61 93 ED F5 7E
16:08:11
RX: 7E A0 21 61 00 02 F0 21 73 18 4F 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
16:08:11 Send AARQ request.
TX: 7E A0 6E 00 02 F0 21 61 10 8D 88 E6 E6 00 60 5D A1 09 06 07 60 85 74 05 08 01 03 A6 0A 04 08 45 4D 52 30 30 30 30 31 8A 02 07 80 8B 07 60 85 74 05 08 02 05 AC 12 80 10 63 6D 26 00 05 69 6A 22 31 38 6D 37 3C 67 0A 52 BE 23 04 21 21 1F 10 00 00 07 A2 01 00 00 00 06 5F 1F 04 00 62 1E 5D 04 00 89 81 6F 4B 0D 70 4E EC C2 70 F3 AB 64 A7 7E
16:08:11
RX: 7E A0 7A 61 00 02 F0 21 30 CA 3B E6 E7 00 61 69 A1 09 06 07 60 85 74 05 08 01 03 A2 03 02 01 00 A3 05 A1 03 02 01 0E A4 0A 04 08 45 4D 52 00 0B 01 01 D0 88 02 07 80 89 07 60 85 74 05 08 02 05 AA 12 80 10 4A 6C 6A 4E 6C 47 3B 31 6B 58 6F 48 63 64 67 76 BE 23 04 21 28 1F 10 00 00 07 47 08 00 06 5F 1F 04 00 00 18 1D 04 00 00 07 52 E6 00 B2 B9 A0 4E 64 2C 70 3F 4E 17 92 7E
16:08:11 Authenticating.
TX: 7E A0 42 00 02 F0 21 61 32 84 58 E6 E6 00 CB 31 10 00 00 07 A3 C3 01 C1 00 0F 00 00 28 00 00 FF 01 01 09 11 10 00 00 07 A3 64 10 B7 DB A6 93 D6 F8 95 F8 56 D1 A9 27 14 91 E0 A4 04 4F F3 16 FB 73 C7 6A 7E
16:08:11
RX: 7E A0 3B 61 00 02 F0 21 52 0D 23 E6 E7 00 CF 2A 10 00 00 07 49 C7 01 C1 00 01 00 09 11 10 00 00 07 48 A7 D5 2D A9 46 91 E6 BD FD 89 BE C7 94 8B 81 B3 1C D7 FC CE 3B 44 23 97 CB FD 7E

Step 2.
Then in GXDirector on tab SecuredConnection set Security=AuthenticationEncription. Authorization result - success.

16:10:07 Send SNRM request.
TX: 7E A0 0A 00 02 F0 21 21 93 8B B3 7E
16:10:07
RX: 7E A0 21 21 00 02 F0 21 73 C9 4D 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
16:10:07 Send AARQ request.
TX: 7E A0 2E 00 02 F0 21 21 10 ED 09 E6 E6 00 60 1D A1 09 06 07 60 85 74 05 08 01 01 BE 10 04 0E 01 00 00 00 06 5F 1F 04 00 62 1E 5D FF FF 88 55 7E
16:10:07
RX: 7E A0 3A 21 00 02 F0 21 30 1D FE E6 E7 00 61 29 A1 09 06 07 60 85 74 05 08 01 01 A2 03 02 01 00 A3 05 A1 03 02 01 00 BE 10 04 0E 08 00 06 5F 1F 04 00 00 10 10 04 00 00 07 36 E3 7E
16:10:07
RX: 7E A0 18 21 00 02 F0 21 52 31 EA E6 E7 00 C4 01 C1 00 06 00 00 07 AC 13 3A 7E
16:10:07 Disconnect request
TX: 7E A0 0A 00 02 F0 21 21 53 87 75 7E
16:10:07
RX: 7E A0 21 21 00 02 F0 21 73 C9 4D 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
16:10:07 Send SNRM request.
TX: 7E A0 0A 00 02 F0 21 61 93 ED F5 7E
16:10:07
RX: 7E A0 21 61 00 02 F0 21 73 18 4F 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
16:10:07 Send AARQ request.
TX: 7E A0 6E 00 02 F0 21 61 10 8D 88 E6 E6 00 60 5D A1 09 06 07 60 85 74 05 08 01 03 A6 0A 04 08 45 4D 52 30 30 30 30 31 8A 02 07 80 8B 07 60 85 74 05 08 02 05 AC 12 80 10 5F 6B 31 1F 11 53 62 68 6C 52 3B 09 4A 18 56 21 BE 23 04 21 21 1F 30 00 00 07 AD 03 EF E6 12 CF DD 47 89 B9 7F 83 E9 FD 74 D2 AE 36 44 49 3E 47 B3 E0 06 D3 0F B1 69 7E
16:10:07
RX: 7E A0 7A 61 00 02 F0 21 30 CA 3B E6 E7 00 61 69 A1 09 06 07 60 85 74 05 08 01 03 A2 03 02 01 00 A3 05 A1 03 02 01 0E A4 0A 04 08 45 4D 52 00 0B 01 01 D0 88 02 07 80 89 07 60 85 74 05 08 02 05 AA 12 80 10 52 54 47 6D 3C 7C 64 44 61 62 6D 3A 6C 61 70 7B BE 23 04 21 28 1F 30 00 00 07 52 5B AE 91 DA F3 B3 32 28 78 1C AC 41 ED 51 68 D1 DF 02 ED 8E D2 F1 56 2C 62 FF 6A 44 7E
16:10:07 Authenticating.
TX: 7E A0 42 00 02 F0 21 61 32 84 58 E6 E6 00 CB 31 30 00 00 07 AE AB 0A 23 29 E8 4F 84 DB 2B D2 2C 3D 53 C9 4D C1 93 B6 3F B5 D9 21 65 B9 73 6A 8E 76 5D A1 54 0F A6 2D 92 3C 2C 97 8A D7 B0 E8 AC B8 CF B3 7E
16:10:08
RX: 7E A0 3B 61 00 02 F0 21 52 0D 23 E6 E7 00 CF 2A 30 00 00 07 54 1D 92 B8 FA E8 84 4F 4C 4D CA 47 CA 0A 6A 36 90 71 CF C4 55 9A AB 3F 5F 12 CF 18 9D CD B7 A3 3D 7E 10 59 97 B2 66 D4 7E

But when I use GXDirector version 9 there is a problem. At step 1 during authorization an error occurs: Connection is permanently rejected. No reason is given.
Authorization is successful only with settings as in step 2.

Please tell me why the option with the settings as in step 1 stopped working.

Thanks!

Image
Profile picture for user Kurumi

Kurumi

1 year 9 months ago

Hi, One of your settings is…

Hi,

One of your settings is different than the meter expects. Because you didn't share the block cipher and authentication keys I can't check what might be the reason for this.

BR,

Mikko

JavierDiaz

1 year 9 months ago

auth:0123456789123456 enc…

auth:0123456789123456
enc:1234567890123456
systemTitle:EMR00001

Thanks.

Profile picture for user Kurumi

Kurumi

1 year 9 months ago

Hi, Your meter returns…

Hi,

Your meter returns invalid authentication data and the client throws an error.

Your meter returns
10 00 00 07 53 9D 1E 23 B1 FD 62 39 23 05 75 0C 90

It should return:
10 00 00 07 53 0F 5F ED EF A2 F6 E9 06 92 6D FA 45

You need to ask meter manufacturer to fix this.

BR,
Mikko

  • Create new account
  • Reset your password

Hire Us!

Latest Releases

  • Tue, 06/09/2026 - 11:16
    gurux.dlms.java 4.0.95
  • Tue, 06/09/2026 - 10:03
    Gurux.DLMS.Python 1.0.199
  • Mon, 06/08/2026 - 13:39
    gurux.dlms.cpp 9.0.2606.0801
  • Mon, 06/01/2026 - 10:15
    gurux.dlms.cpp 9.0.2606.0101
  • Thu, 05/28/2026 - 16:06
    gurux.dlms.java 4.0.94

New forum topics

  • Error reading L&G Meter
  • Pass a TCP Client to GXNet
  • Australian EDMI Mk10D (Essential Energy area)
  • Strange mix of data notificiation vs get response
  • DLMS Connection
More
RSS feed
Privacy FAQ GXDN Issues Contact
Follow Gurux on Twitter Follow Gurux on Linkedin