OAI + UERANSIM Integration

[chandan-vp]

Hello, I am deploying OAI as 5G CN along with UERANSIM. I am following the official documentation of OAI to deploy CN with UERANSIM. Documentation - https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-fed/-/blob/master/docs/DEPLOY_SA5G_WITH_UERANSIM.md

As of now CN is up and healthy. When I try to run UERANSIM via docker, its shows an error as below:

ueransim | [2023-10-16 04:01:34.405] [nas] [error] [IA0] cannot be accepted as the UE does not have an emergency ueransim | [2023-10-16 04:01:34.405] [nas] [error] Rejecting Security Mode Command with cause [SEC_MODE_REJECTED_UNSPECIFIED]

I have looked into the past issues and found that I have to disable NIA0 in amf's config. I did the changes and yet I am still facing the same issue. Below is the AMF's config attached:

oai-amf.txt

Kindly help me out in resolving this.

[AITABAmassinissa]

Hi Chandan, all the steps are explained here : https://github.com/AIDY-F2N/OAI-UERANSIM

[tariromukute]

Hi @chandan-vp, you can run the OAI without integrity algorithm IA0. Comment it out in the config file, e.g., in oai-cn5g-fed/docker-compose/conf/basic_nrf_config.yaml like below.

  supported_integrity_algorithms:
    # - "NIA0"
    - "NIA1"
    - "NIA2"
  supported_encryption_algorithms:
    # - "NEA0"
    - "NEA1"
    - "NEA2"