Issue with Unknown UE Identified by SUCI - Authentication failure(MAC failure)

[bullvolkan]

I am encountering an issue while working with the system, which involves Amarisoft Callbox Mini and Samsung smartphones. I followed the link (https://tech-academy.amarisoft.com/Cloud_open5gs.html) and below is the error message I am encountering:

[amf] INFO: InitialUEMessage (../src/amf/ngap-handler.c:401)
[amf] INFO: [Added] Number of gNB-UEs is now 1 (../src/amf/context.c:2550)
[amf] INFO: RAN_UE_NGAP_ID[1] AMF_UE_NGAP_ID[1] TAC[1] CellID[0x1234501] (../src/amf/ngap-handler.c:562)
[amf] INFO: [suci-0-001-01-0-0-0-0123456789] Unknown UE by SUCI (../src/amf/context.c:1835)
[amf] INFO: [Added] Number of AMF-UEs is now 1 (../src/amf/context.c:1616)
[gmm] INFO: Registration request (../src/amf/gmm-sm.c:1165)
[gmm] INFO: [suci-0-001-01-0-0-0-0123456789] SUCI (../src/amf/gmm-handler.c:166)
[sbi] INFO: [AUSF] (SCP-discover) NF registered [05fa4be6-e13d-41ee-87a3-73e00ccf4cd1:1] (../lib/sbi/path.c:211)
[gmm] WARNING: Authentication failure(MAC failure) (../src/amf/gmm-sm.c:1548)
[amf] WARNING: [suci-0-001-01-0-0-0-0123456789] Authentication reject (../src/amf/nas-path.c:538)
[amf] INFO: UE Context Release [Action:3] (../src/amf/ngap-handler.c:1698)
[amf] INFO: RAN_UE_NGAP_ID[1] AMF_UE_NGAP_ID[1] (../src/amf/ngap-handler.c:1699)
[amf] INFO: SUCI[suci-0-001-01-0-0-0-0123456789] (../src/amf/ngap-handler.c:1702)
[amf] INFO: [Removed] Number of gNB-UEs is now 0 (../src/amf/context.c:2557)
[amf] INFO: [Removed] Number of AMF-UEs is now 0 (../src/amf/context.c:1709)
[amf] INFO: InitialUEMessage (../src/amf/ngap-handler.c:401)
[amf] INFO: [Added] Number of gNB-UEs is now 1 (../src/amf/context.c:2550)
[amf] INFO: RAN_UE_NGAP_ID[2] AMF_UE_NGAP_ID[2] TAC[1] CellID[0x1234501] (../src/amf/ngap-handler.c:562)
[amf] INFO: [suci-0-001-01-0-0-0-0123456789] Unknown UE by SUCI (../src/amf/context.c:1835)
[amf] INFO: [Added] Number of AMF-UEs is now 1 (../src/amf/context.c:1616)
[gmm] INFO: Registration request (../src/amf/gmm-sm.c:1165)
[gmm] INFO: [suci-0-001-01-0-0-0-0123456789] SUCI (../src/amf/gmm-handler.c:166)
[sbi] WARNING: [AUSF] (SCP-discover) NF has already been added [05fa4be6-e13d-41ee-87a3-73e00ccf4cd1:1] (../lib/sbi/path.c:216)
[gmm] WARNING: Authentication failure(MAC failure) (../src/amf/gmm-sm.c:1548)
[amf] WARNING: [suci-0-001-01-0-0-0-0123456789] Authentication reject (../src/amf/nas-path.c:538)
[amf] INFO: UE Context Release [Action:3] (../src/amf/ngap-handler.c:1698)
[amf] INFO: RAN_UE_NGAP_ID[2] AMF_UE_NGAP_ID[2] (../src/amf/ngap-handler.c:1699)
[amf] INFO: SUCI[suci-0-001-01-0-0-0-0123456789] (../src/amf/ngap-handler.c:1702)
[amf] INFO: [Removed] Number of gNB-UEs is now 0 (../src/amf/context.c:2557)
[amf] INFO: [Removed] Number of AMF-UEs is now 0 (../src/amf/context.c:1709)

It seems that the system is encountering an issue with identifying the UE by SUCI. The logs indicate that an unknown UE has been detected using SUCI. pcap is also attached
mac_failure.pcap.zip

Could you please investigate this matter further and provide guidance on how to resolve this issue? If additional information or logs are required from my end, please let me know, and I will provide them.

Thanks in advance.

[ToOpenSky]

hi, did you able to solve the problem?
I having similar kind of problem. I am using Amarisoft Test sim. https://tech-academy.amarisoft.com/update.wiki Here, they did not mention about OP/OPc. What should be the those?