[srslte-users] [srsLTE] MAC code failure

Pedro Alvarez pedro.alvarez at softwareradiosystems.com
Tue Jun 5 07:58:00 UTC 2018


Hi Mihai,

It seems that UE is rejecting the authentication from the network.
Can you provide me with the following information:

1 - Is you SIM card using MILENAGE or XOR authentication algorithm?
2 - If MILENAGE, is the SIM you are using configured with OP or OPc?

Regards,
Pedro

On Tue, Jun 5, 2018 at 7:50 AM, Mihai Idu <idumihai16 at gmail.com> wrote:

> Hello Pedro and all,
>
> Could you help me with a resolution regarding the following error:
> Attach Request -- UE is already attached.Attach request -- IMSI:
> 901700000022950
> Attach request -- eNB-UE S1AP Id: 19, MME-UE S1AP Id: 19
> Attach request -- Attach type: 2
> Attach Request -- UE Network Capabilities EEA: 11110000
> Attach Request -- UE Network Capabilities EIA: 11110000
> Attach Request -- MS Network Capabilities Present: true
> PDN Connectivity Request -- EPS Bearer Identity requested: 0
> PDN Connectivity Request -- Procedure Transaction Id: 1
> PDN Connectivity Request -- ESM Information Transfer requested: false
> Downlink NAS: Sending Authentication Request
> Plain UL NAS: Authentication Failure
> MAC code failure
> Received UE Context Release Request. MME-UE S1AP Id 19
> UE is not ECM connected. No need to release S1-U. MME UE S1AP Id 19
> UE is ECM IDLE.
>
>>  enb.log
> <https://drive.google.com/file/d/1d6H26FMvYWAuZG1fPzJ78yMJUfdVlq34/view?usp=drive_web>
> ​​
>  enb.pcap
> <https://drive.google.com/file/d/1l1FMRX8DzmsZF64MgHmZ8PIOFXU9dhgO/view?usp=drive_web>
> ​​
>  epc.log
> <https://drive.google.com/file/d/1gEyzxW7fzhwOwbM9CbGpAqoFTFYMbKC-/view?usp=drive_web>
>>
> Thank you,
> Mihai
>
> On Sun, Jun 3, 2018 at 9:39 PM, Pedro Alvarez <pedro.alvarez@
> softwareradiosystems.com> wrote:
>
>> Hi Mihai,
>>
>> Does this happen when you try to connect one user only?
>> Can you send the epc.log and the enb.pcap of the two user case?
>>
>> Regards,
>> Pedro
>>
>> On Sun, Jun 3, 2018 at 11:45 AM, Mihai Idu <idumihai16 at gmail.com> wrote:
>> > Hello srs users,
>> >
>> > i am writing this e-mail because i am finding myself into a blocking
>> point,
>> > and i would love a little help. I am implemented the following settup:
>> >
>> > 1. USRP X310 which is the enodeB and i have 2 users Huawei P9 lite
>> >
>> > I manage to define the users in the HSS and changed the MNC and MCC
>> > according to the IMSI. but when i try to connect the phones to the
>> network i
>> > am facing the following :
>> >
>> > Attach Request -- UE is already attached.Attach request -- IMSI:
>> > 901700000022950
>> > Attach request -- eNB-UE S1AP Id: 19, MME-UE S1AP Id: 19
>> > Attach request -- Attach type: 2
>> > Attach Request -- UE Network Capabilities EEA: 11110000
>> > Attach Request -- UE Network Capabilities EIA: 11110000
>> > Attach Request -- MS Network Capabilities Present: true
>> > PDN Connectivity Request -- EPS Bearer Identity requested: 0
>> > PDN Connectivity Request -- Procedure Transaction Id: 1
>> > PDN Connectivity Request -- ESM Information Transfer requested: false
>> > Downlink NAS: Sending Authentication Request
>> > Plain UL NAS: Authentication Failure
>> > MAC code failure
>> > Received UE Context Release Request. MME-UE S1AP Id 19
>> > UE is not ECM connected. No need to release S1-U. MME UE S1AP Id 19
>> > UE is ECM IDLE.
>> >
>> >
>> > If anyone has some idea to fix this issue please, let me know. from my
>> > knowledge this error message appears when the MAC provided by the
>> network is
>> > not a correct one.
>> >
>> > Thank you,
>> > Mihai
>> >
>> > _______________________________________________
>> > srslte-users mailing list
>> > srslte-users at lists.softwareradiosystems.com
>> > http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>> >
>>
>
>
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