[srsran-users] There is no Attach Reject

[Andre Puschmann]

On 18/9/22 21:17, Mania Mania wrote:
> Hi,
> I have implemented an LTE network using srsRAN + open5gs and 
> USRP-B210(without GPSDO).
> I tried to connect a commercial phone (Samsung galaxy note3) to the 
> network and see the UE's captured packets using QCSuper in the 
> Wireshark. As I did not save USIM information in the HSS, I expected UE 
> to be rejected with PLMN_NOT_ALLOWED cause, but UE persistently sends 
> Attach Request to the network, and there is no Attach Reject in the 
> response.
> According to the Wireshark logs on the network side, MME sends the 
> Attach Reject message to the Srsenb. Unfortunately, it appears that the 
> Srsenb does not send it to the UE(I did not see any Attach Reject in 
> Wireshark on the UE side). What should I do? How can I fix this problem?


The eNB should forward the reject to the UE. Please share logs and/or 
related PCAPs.

Thanks