iperf in srsue not able to connect to open5gs with udp traffic

[joelrenjith]

Issue Description

System details

• Ubuntu 20.04 LTS
• GCP Virtual Machine

Setup Details

• I am trying to do the srsue zermq setup given in this link : srsRAN gNB with srsUE
• srsRAN_4G [Version 23.04] installation done according to srsran4g Installation Guide
• srsRAN_Project [Version 24.04] installation done according to srsProject Installation Guide using Clone and Build.
• ZeroMQ setup using srsRAN 4G with ZMQ Virtual Radios and Build srsRAN_Project 5G RAN with ZeroMQ

Expected Behavior

• I have a setup that connects a UE to a RAN and the RAN to the Core using zeromq as shown in this link: ZeroMQ-based Setup

• I am able to connect the srsue to open5gs

• Setup testing results for everything other than iperf

Actual Behaviour

-For Iperf Testing, I setup a server on the core container:

• When I try running the command for iperf client on the host machine, this comes up

• So I changed the IP Address and it works for tcp:

• But for UDP this is the error:

Steps to reproduce the problem

• Follow the steps mentioned in zeromq setup of ZeroMQ-based Setup
• i ran make command again for srsran_4g and srsran_project to include zeromq

Additional Information

• I tried fixing the issue by doing this but it didnt work.

Any help that's provided would be greatly appreciated. Thanks in advance

[pgawlowicz]

could you share your gnb and srsue logs? is it possible to ping core from UE?

[joelrenjith]

could you share your gnb and srsue logs? is it possible to ping core from UE?

Hey @pgawlowicz , ping in the uplink direction works from the UE:

Here are the gnb and ue logs: ue.log gnb.log

[pgawlowicz]

If you are running iperf3 inside the Open5gs container then the client should use IP 10.45.1.1

[joelrenjith]

ohh ohkay thanks a lot!