[srslte-users] UE attached but without IP

[Eduardo Garro Crevillen]

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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