How can a custom UPF IP be exposed?

[ggomez048]

I'm running Open5GS on Kubernetes and I want to use a gNB set up on another PC but the IP advertised on the NGAP messages to make the GTPU tunnel is the IP of the UPF pod. How can I change that IP to an IP accessible for the gNB?

Thank you.

[herlesupreeth]

You can set in .env file UPF_ADVERTISE_IP to the IP you want your gNB to see. Once you have modified .env file you need to run source .env and re-deploy 5GC from that terminal

[ggomez048]

Thank you for your response, but I'm using these Helm Charts:
https://gradiant.github.io/5g-charts/open5gs-ueransim-gnb.html

There is no .env file in this installation.

[herlesupreeth]

Its showing me 404 Error if I press on that link. Also, I would suggest you raise the issue in that repo since you are using helm charts rather than this repo.

Eitherway you can set whatever IP you want your gNB to see in upf.yaml at the following location in configuration file

docker_open5gs/upf/upf.yaml

Line 18 in 9c034db

advertise: UPF_ADVERTISE_IP