Issue: Received a incoming packet on unknown teid

Hi,

I am trying to setup end-end 5G experimental testbed using Magma 5G core with Openairinterface5g RAN and UE. The setup diagram is given below:

Hardware and Software Details used for setup:

Magma 5G AGW: Dell EMC R350 server, Ubuntu 20.04 Server

NMS and Orc8r: Alienware Aurora R12, Ubuntu 22.04 Desktop

OAI RAN (gNB): Dell EMC R350 server, Ubuntu 22.04 Desktop

OAI UE: Dell EMC R350 server, ubuntu 22.04 Desktop

I have successfully tested the Magma 5G core with UERANSIM and currently experimenting with OAI RAN and UE. I have used the

sudo ./nr-softmodem -O ../../../targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band66.fr1.24PRB.usrpx300.conf --gNBs.[0].min_rxtxtime 6 --sa --usrp-tx-thread-config 1 --continuous-t command for running the gNB and

sudo ./nr-uesoftmodem -r 24 --numerology 1 --band 66 -C 2154530000 --CO -400000000 --ssb 48 --ue-fo-compensation --sa --uicc0.imsi 286010000000004 command for running the UE.

In doing so, sometime tunnel interface oaitun_ue1 is created in UE and sometimes not. But when it is created, on pinging the data network using command ping 8.8.8.8 -I oaitun_ue1, "[GTPU] [98] Received a incoming packet on unknown teid (80000002) Dropping!" error is seen on the gNB terminal as in the image shown below.

Can you please help me debug this issue?

Regards,

Rajendra Upadhyay