[srslte-users] srsEPC: UE unable to register on network

[Pedro Alvarez]

It seems like the UE does not like message authentication code of the
ESM information transfer. This is probably related to the downlink NAS
COUNT.

Which phone are you using?

Regards,
Pedro

On Wed, Jun 13, 2018 at 7:57 AM, Ignas Jarusevicius
<i.jarusevicius at limemicro.com> wrote:
> Hi Pedro,
>
> Thank you for looking into this. I attached enb.pcab together with
> enb.log and epc.log from the same run.
> The APN settings on the phone are:
>
> APN: srsapn
> Proxy: not set
> Port: not set
> Username: not set
> Password: not set
> Server: not set
> MMSC: not set
> MMS proxy: not set
> MCC: 001
> MNC: 01
> Authentication type: none
> APN type: default
> APN protocol: IPv4
> APN roaming protocol IPv4
> Bearer: 4G
> MVNO type: none
>
> I have tried changing APN in epc.conf and on the phone but result was
> the same.
>
> Regards,
> Ignas
>
>
> On 2018.06.12 21:55, Pedro Alvarez wrote:
>> Hi Ignas,
>>
>> The authentication and the security mode command seem to have worked
>> fine and it seems to be breaking on the ESM information transfer. Did
>> you set any APN on the phone?
>>
>> Can you send the enb.pcap so I can have a bit more information? You
>> can enable it on the in the enb.conf.
>>
>> Regards,
>> Pedro
>>
>> On Tue, Jun 12, 2018 at 11:49 AM, Ignas Jarusevicius
>> <i.jarusevicius at limemicro.com> wrote:
>>> Hello All,
>>>
>>> I am trying to set up srsENB and srsEPC with commercial UE. When UE
>>> attempts to connect to the network, I get "UE Authentication Accepted"
>>> message in srsEPC, but UE fails to register on the network. ENB and EPC
>>> logs are attached.
>>> UE registers successfully when srsENB is used with EPC from Amarisoft so
>>> I think the problem is with srsEPC. Am I missing something in srsEPC
>>> configuration or is it some limitation of srsEPC? Any help would be
>>> appreciated.
>>>
>>> Regards,
>>> Ignas
>>>
>>>
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>