[srslte-users] MAC Authentication failure

Saimanoj Katta saimanoj.katta at cumucore.com
Wed Aug 14 08:34:57 UTC 2019


Hi,

I am trying to use srsLTE UE (via USRP X310) to a commercial base station
and commercial EPC.  EPC log(in the attachment) indicates 0x5c MAC failure.
I am not able to decode anything from pcap as it does not indicate any
protocols used(attached below which is obtained by enabling pcap enable =
true in code). I have also attached UE log. Can you help me figure out
where might be the problem(Why is authentication failing, if all the
parameters are set properly)? I would appreciate any help that could lead
me further!

I am running as *root user*:
root at ubuntu-Zephyrus-GX501GI:/home/ubuntu/srsLTE-issuefix_format1c#
srsue --rf.dl_earfcn 3350 --log.all_level=info --usim.k
000102030405060708090A0B0C0D0E0F --usim.opc
BC2BCE2A23BE2FAE32E4F1B4546004F7 --usim.imsi 244591000000001 --pcap.enable
1

mysql> select mcc,mnc,hex(msin), msisdn from subscriber_profile WHERE
(mcc=244 AND mnc=59 AND hex(msin)=1000000001 AND msisdn= 358591000000001)
    -> ;
+-----+-----+------------+-----------------+
| mcc | mnc | hex(msin)  | msisdn          |
+-----+-----+------------+-----------------+
| 244 |  59 | 1000000001 | 358591000000001 |
+-----+-----+------------+-----------------+
1 row in set (0.00 sec)

2) It would be great if you could add a search functionality to your forum.
It would be easier to search for issues that have same keywords.

Thanks for your help!

Regards,
Saimanoj
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Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.638408  INFO - S1 message received    [ len=66  stream=0 ]
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.638583  INFO - ID = 225, ID HEX = e1, ENB ID = 225
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.638662  INFO -   "stream":        "0"
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.638731  INFO -   "enb_ue_id":        "225"
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.638799  INFO - S1_INITIAL_UE_MESSAGE
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.638870  INFO - amf_core_hdl_initial_ue_msg
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639055  INFO -         // PLAIN_HEADER    [ msgType=0x41 ]
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639124  INFO -         // attach_req
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639189  INFO -         imsi.len=8
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639277  INFO -         imsi_str=244591000000001
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639340  INFO -         uENetworkCapability.len = 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639403  INFO -         eSM_MessageContainer.len = 4
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639469  INFO - SN( TAI ) = 0x42f495
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639530  INFO - EMM Message type: ATTACH_REQUEST
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639594  INFO - hdl_plain_attach
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.639653  INFO - IMSI extracted from message : 244591000000001
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.640241  INFO - No User-Id temporarly associated with IMSI '244591000000001' found
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.640307  INFO - No GEA security capability included
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.640372  INFO - ESM message container PTI: 01
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.640468  INFO - NO 'ESM Information Transfer Flag'
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.640535  INFO - hdl_ecm: USER-ID 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.640606  INFO - ENB-UE-S1AP_ID retrieved:225
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.640667  INFO -  Connection created: USER-ID: 2, MME-UE-S1AP-ID: 227
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.640729  INFO - user_data_get_auth_data. IMSI 244591000000001, USER-ID 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.640788  INFO - s6a_fetch_auth_data. IMSI 244591000000001
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.645123  INFO - user_data_hdl_aia. IMSI 244591000000001
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.645198  INFO - user_data_hdl_aia. USER-ID = 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.645262  INFO - amf_core_hdl_auth_req. USER-ID 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.645324  INFO - emm_hdl_auth_req: USER-ID 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.645383  INFO - prepare_auth_req_pdu: USER-ID 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.645443  INFO - create_plain_emm_nas_pdu_hdr
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.645507  INFO - send_dl_msg: msg_type: 52, USER-ID: 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.660731  INFO - S1 message received    [ len=49  stream=0 ]
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.660796  INFO - ID = 225, ID HEX = e1, ENB ID = 225
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.660897  INFO -   "stream":        "0"
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.660936  INFO -   "mme_ue_id":        "227"
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661000  INFO -   "enb_ue_id":        "225"
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661145  INFO - UPLINK_NAS_TRANSPORT
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661228  INFO -         // PLAIN_HEADER    [ msgType=0x5C ]
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661323  INFO -         // auth_failure
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661385  INFO -         cause
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661432  INFO - Received Message Type: 5c
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661497  INFO - Start Processing Authentication Failure Reponse
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661540  INFO - amf_core_auth_fail
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661612  INFO - Get MME-UE-S1AP-ID: '227' associated USER-ID: '2'
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661776  INFO -         // PLAIN_HEADER    [ msgType=0x5C ]
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661812  INFO -         // auth_failure
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661876  INFO -         cause
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661940  INFO - SN( TAI ) = 0x42f495
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.661977  INFO - emm_auth_fail: USER-ID 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.662039  INFO - None implemented Authentication Failure
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.662132  INFO - None implemented Authentication Failure
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.662168  INFO - Connection released. For USER-ID: 2
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.662206  INFO - Sending Context release command MME-UE-S1AP-ID = 227   ENB-UE-S1AP-ID = 225
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.662327  INFO - send CONTEXT RELEASE COMMAND
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.663309  INFO - S1 message received    [ len=19  stream=0 ]
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.663411  INFO - ID = 225, ID HEX = e1, ENB ID = 225
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.663486  INFO -   "stream":        "0"
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.663525  INFO -   "mme_ue_id":        "227"
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.663560  INFO -   "enb_ue_id":        "225"
Aug 14 10:57:20 greygw AMF_S1[18880]: 10:57:20.663597  INFO - UE_CONTEXT_RELEASE
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