[srsran-users] iperf in srsue not able to connect to open5gs with udp traffic

[Joel Renjith]

*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
   <https://docs.srsran.com/projects/project/en/latest/tutorials/source/srsUE/source/index.html>
   - srsRAN_4G [Version 23.04] installation done according to srsran4g
   Installation Guide
   <https://docs.srsran.com/projects/4g/en/latest/general/source/1_installation.html>
   - srsRAN_Project [Version 24.04] installation done according to srsProject
   Installation Guide
   <https://docs.srsran.com/projects/project/en/latest/user_manuals/source/installation.html>
    using *Clone and Build*.
   - ZeroMQ setup using srsRAN 4G with ZMQ Virtual Radios
   <https://docs.srsran.com/projects/4g/en/next/app_notes/source/zeromq/source/index.html>
    and Build srsRAN_Project 5G RAN with ZeroMQ
   <https://github.com/s5uishida/build_srsran_5g_zmq>

*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
   <https://docs.srsran.com/projects/project/en/latest/tutorials/source/srsUE/source/index.html#zeromq-based-setup>
   - I am able to connect the srsue to open5gs
   - [image: image.png]
   - Setup testing results for everything other than iperf
   [image: image.png]

*Actual Behaviour*

   - For Iperf Testing, I setup a server on the core container:
   - [image: image.png]
   - When I try running the command for iperf client on the host machine,
   this comes up
   - [image: image.png]
   - So I changed the IP Address and it works for tcp:
   -
         [image: image.png]
   - But for UDP this is the error:
         - [image: image.png]

*Steps to reproduce the problem*

   - Follow the steps mentioned in zeromq setup of ZeroMQ-based Setup
   <https://docs.srsran.com/projects/project/en/latest/tutorials/source/srsUE/source/index.html#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.
   - [image: image.png]

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