[srslte-users] UE attached but without IP

Pedro Alvarez pedro.alvarez at softwareradiosystems.com
Thu Feb 7 11:09:40 UTC 2019


Can you double check if the APN configuration matches in the EPC and the UE?

On Thu, Feb 7, 2019 at 10:59 AM Eduardo Garro Crevillen
<edgarcre at iteam.upv.es> wrote:
>
>
> Hello everyone,
>
> We have just started trying to implement the srsLTE suite. We are using the srsepc, the srsenb which is connected to a USRP B210 and a sysmocom USIM inside a Bittium phone as UE. However, although it seems that the UE is correctly attached, it does not get any IP address. In the attachment you can find the .log and .pcap files. Taking a look to the epc.log it seems that there is an error in the NAS authentication protocol. We have thought that there was a problem with the USIM data. However, we have checked several times that the IMSI, OPC and K are correctly included within the ue_db.csv. This the included line:
>
> ue4,901700000000004,99728e5d250001ba5f322c82d002db86,opc,b8993ca66ce802c03a2c16d237e90cd1,9001,0000000012fa,7
>
> Maybe there is an error regarding the SQN or the QCI? Since we have not found any message on the mailing list archives talking about these problem, we kindly ask for your help.
>
> Kind regards, Eduardo
>
> -----------------------------------------
>   Eduardo Garro Crevillén, R&D Engineer
>   Universitat Politècnica de València
>   iTEAM Research Institute
>   Mobile Communications Group
> -----------------------------------------
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