OAI + UERANSIM PDU Session Establishment Reject

[Paolo9766]

Hi everyone,
I start saying that I am new to all of this.
I have three VMs. In one of them, I have 5G CN OAI that works fine, in the second and third UERANSIM running gNB and UE.
I'm using docker.

In AMF docker-compose file I've followed the instruction for integrity and ciphering algorithms NIA0 NEA0 at https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-fed/-/blob/master/docs/DEPLOY_SA5G_WITH_UERANSIM.md giving result to this configuration:
AMF =
{
INSTANCE_ID = 0 ; # 0 is the default
PID_DIRECTORY = "/var/run"; # /var/run is the default

AMF_NAME = "OAI-AMF";
LOG_LEVEL = "debug";

RELATIVE_CAPACITY = 30;

Display statistics about whole system (in seconds)

STATISTICS_TIMER_INTERVAL = 20;

CORE_CONFIGURATION:
{
EMERGENCY_SUPPORT = "false";
};

GUAMI:
{
MCC = "208"; MNC = "95"; RegionID = "128"; AMFSetID = "1"; AMFPointer = "1"
}

SERVED_GUAMI_LIST = (
{MCC = "208"; MNC = "95"; RegionID = "128"; AMFSetID = "1"; AMFPointer = "0"}
#48bits
);

PLMN_SUPPORT_LIST = ({
MCC = "208"; MNC = "95"; TAC = 0x0001;
SLICE_SUPPORT_LIST = (
{SST = 1; SD = "1"}
,{SST = 128;SD = "12"}

 )

});

INTERFACES:
{
# AMF binded interface for N1/N2 interface (NGAP)
NGAP_AMF:
{
INTERFACE_NAME = "eth0";
IPV4_ADDRESS = "read";
PORT = 38412;
PPID = 60;
};

# AMF binded interface for SBI (N11 (SMF)/N12 (AUSF), etc.)
SBI:
{
  INTERFACE_NAME = "eth0";
  IPV4_ADDRESS   = "read";
  # default is 80
  PORT           = 80;
  # default is v1
  API_VERSION    = "v1";
  # default is 8080
  HTTP2_PORT     = 8080;

  SMF_INSTANCES_POOL = (
    {SMF_INSTANCE_ID = 1; IPV4_ADDRESS = "192.168.70.133"; PORT = "80"; HTTP2_PORT = 8080, VERSION = "v1"; FQDN = "oai-smf", SELECTED = "true"}
  );
};

NRF :
{
  IPV4_ADDRESS = "192.168.70.130";
  PORT         = 8080;            # Default: 80
  API_VERSION  = "v1";
  FQDN         = "oai-nrf"
};

AUSF :
{
  IPV4_ADDRESS = "192.168.70.138";
  PORT         = 8080;            # Default: 80
  API_VERSION  = "v1";
  FQDN         = "oai-ausf"
};

UDM :
{
  IPV4_ADDRESS = "192.168.70.137";
  PORT         = 8080;    # Default: 80
  API_VERSION  = "v2";
  FQDN         = "oai-udm"
};

NSSF :
{
  IPV4_ADDRESS = "0.0.0.0";
  PORT         = 80;            # Default: 80
  API_VERSION  = "v2";
  FQDN         = "oai-nssf"
};

};

SUPPORT_FEATURES:
{
# STRING, {"yes", "no"},
NF_REGISTRATION = "yes"; # Set to yes if AMF registers to an NRF
NRF_SELECTION = "no"; # Set to yes to enable NRF discovery and selection
EXTERNAL_NRF = "no"; # Set to yes if AMF works with an external NRF
SMF_SELECTION = "yes"; # Set to yes to enable SMF discovery and selection
EXTERNAL_AUSF = "yes"; # Set to yes if AMF works with an external AUSF
EXTERNAL_UDM = "no"; # Set to yes if AMF works with an external UDM
EXTERNAL_NSSF = "no"; # Set to yes if AMF works with an external NSSF
USE_FQDN_DNS = "yes"; # Set to yes if AMF relies on a DNS to resolve NRF/SMF/UDM/AUSF's FQDN
USE_HTTP2 = "yes"; # Set to yes to enable HTTP2 for AMF server
}

AUTHENTICATION:
{
## MySQL mandatory options
MYSQL_server = "mysql"; # MySQL Server address
MYSQL_user = "test"; # Database server login
MYSQL_pass = "test"; # Database server password
MYSQL_db = "oai_db"; # Your database name
RANDOM = "true";
};

NAS:
{
ORDERED_SUPPORTED_INTEGRITY_ALGORITHM_LIST = ["NIA1" , "NIA2"] ;
ORDERED_SUPPORTED_CIPHERING_ALGORITHM_LIST = ["NEA1" , "NEA2"] ;
};
};

config file for gNB is:

Mobile Country Code value of HPLMN

mcc: '208'

Mobile Network Code value of HPLMN (2 or 3 digits)

mnc: '95'

nci: '0x1' # NR Cell Identity (36-bit)
idLength: 32 # NR gNB ID length in bits [22...32]
tac: 1 # Tracking Area Code

linkIp: 10.0.3.11 # gNB's local IP address for Radio Link Simulation (Usually same with local IP)
ngapIp: 192.168.12.69 # gNB's local IP address for N2 Interface (Usually same with local IP)
gtpIp: 192.168.12.69 # gNB's local IP address for N3 Interface (Usually same with local IP)

List of AMF address information

amfConfigs:

• address: 192.168.12.192
  port: 38412

List of supported S-NSSAIs by this gNB

slices:

• sd: '1'
  sst: 1

Indicates whether or not SCTP stream number errors should be ignored.

ignoreStreamIds: true

and for UE is:

IMSI number of the UE. IMSI = [MCC|MNC|MSISDN] (In total 15 or 16 digits)

supi: 'imsi-208950000000001'

Mobile Country Code value of HPLMN

mcc: '208'

Mobile Network Code value of HPLMN (2 or 3 digits)

mnc: '95'

Permanent subscription key

key: '465B5CE8B199B49FAA5F0A2EE238A6BC'

Operator code (OP or OPC) of the UE

op: 'E8ED289DEBA952E4283B54E88E6183CA'

This value specifies the OP type and it can be either 'OP' or 'OPC'

opType: 'OPC'

Authentication Management Field (AMF) value

amf: '8000'

IMEI number of the device. It is used if no SUPI is provided

imei: '356938035643803'

IMEISV number of the device. It is used if no SUPI and IMEI is provided

imeiSv: '4370816125816151'

List of gNB IP addresses for Radio Link Simulation

gnbSearchList:

• 10.0.3.11

UAC Access Identities Configuration

uacAic:
mps: false
mcs: false

UAC Access Control Class

uacAcc:
normalClass: 0
class11: false
class12: false
class13: false
class14: false
class15: false

Initial PDU sessions to be established

sessions:

• apn: oai.ipv4
  slice:
  sd: 1
  sst: 1
  type: IPv4

Configured NSSAI for this UE by HPLMN

configured-nssai:

• sd: 1
  sst: 1

Default Configured NSSAI for this UE

default-nssai:

• sd: 1
  sst: 1

Supported encryption algorithms by this UE

integrity:
IA1: true
IA2: true
IA3: true

Supported integrity algorithms by this UE

ciphering:
EA1: true
EA2: true
EA3: true

Integrity protection maximum data rate for user plane

integrityMaxRate:
uplink: 'full'
downlink: 'full'

The error that I have on UE is:
[2023-12-01 11:08:54.549] [nas] [info] UE switches to state [MM-DEREGISTERED/PLMN-SEARCH]
[2023-12-01 11:08:54.550] [rrc] [debug] New signal detected for cell[1], total [1] cells in coverage
[2023-12-01 11:08:54.551] [nas] [info] Selected plmn[208/95]
[2023-12-01 11:08:54.551] [rrc] [info] Selected cell plmn[208/95] tac[1] category[SUITABLE]
[2023-12-01 11:08:54.552] [nas] [info] UE switches to state [MM-DEREGISTERED/PS]
[2023-12-01 11:08:54.552] [nas] [info] UE switches to state [MM-DEREGISTERED/NORMAL-SERVICE]
[2023-12-01 11:08:54.552] [nas] [debug] Initial registration required due to [MM-DEREG-NORMAL-SERVICE]
[2023-12-01 11:08:54.554] [nas] [debug] UAC access attempt is allowed for identity[0], category[MO_sig]
[2023-12-01 11:08:54.554] [nas] [debug] Sending Initial Registration
[2023-12-01 11:08:54.554] [nas] [info] UE switches to state [MM-REGISTER-INITIATED]
[2023-12-01 11:08:54.554] [rrc] [debug] Sending RRC Setup Request
[2023-12-01 11:08:54.556] [rrc] [info] RRC connection established
[2023-12-01 11:08:54.556] [rrc] [info] UE switches to state [RRC-CONNECTED]
[2023-12-01 11:08:54.556] [nas] [info] UE switches to state [CM-CONNECTED]
[2023-12-01 11:08:54.621] [nas] [debug] Authentication Request received
[2023-12-01 11:08:54.621] [nas] [debug] Received SQN [000000000FC0]
[2023-12-01 11:08:54.621] [nas] [debug] SQN-MS [000000000000]
[2023-12-01 11:08:54.652] [nas] [debug] Security Mode Command received
[2023-12-01 11:08:54.652] [nas] [debug] Selected integrity[1] ciphering[1]
[2023-12-01 11:08:54.679] [nas] [debug] Registration accept received
[2023-12-01 11:08:54.679] [nas] [info] UE switches to state [MM-REGISTERED/NORMAL-SERVICE]
[2023-12-01 11:08:54.679] [nas] [debug] Sending Registration Complete
[2023-12-01 11:08:54.679] [nas] [info] Initial Registration is successful
[2023-12-01 11:08:54.679] [nas] [debug] Sending PDU Session Establishment Request
[2023-12-01 11:08:54.680] [nas] [debug] UAC access attempt is allowed for identity[0], category[MO_sig]
[2023-12-01 11:08:54.927] [nas] [error] PDU Session Establishment Reject received [?]
[2023-12-01 11:08:55.650] [nas] [debug] Sending PDU Session Establishment Request
[2023-12-01 11:08:55.650] [nas] [debug] UAC access attempt is allowed for identity[0], category[MO_sig]
[2023-12-01 11:08:55.676] [nas] [error] PDU Session Establishment Reject received [?]
[2023-12-01 11:08:56.751] [nas] [debug] Sending PDU Session Establishment Request
[2023-12-01 11:08:56.751] [nas] [debug] UAC access attempt is allowed for identity[0], category[MO_sig]
[2023-12-01 11:08:56.767] [nas] [error] PDU Session Establishment Reject received [?]
[2023-12-01 11:08:57.852] [nas] [debug] Sending PDU Session Establishment Request
[2023-12-01 11:08:57.852] [nas] [debug] UAC access attempt is allowed for identity[0], category[MO_sig]
[2023-12-01 11:08:57.870] [nas] [error] PDU Session Establishment Reject received [?]

I don't really know what to do anymore.
Can you please help me?
Thanks