UPF no internet connectivity can't update alpine linux image ?

[krupalb]

Hi all, first off thank you for making the helm scripts! I seem to have an issue where I'm not getting internet connectivity from the UPF pod. I've setup the free5gc as per the instructions like this?

microk8s helm -n free5gc install free5gc-v1 towards5gs/free5gc \ --set global.n3network.masterIf=eth0 \ --set global.n4network.masterIf=eth0 \ --set global.n6network.masterIf=eth0 \ --set global.n6network.subnetIP=10.100.100.0 \ --set global.n6network.gatewayIP=10.100.100.1 \ --set free5gc-upf.upf.n6if.ipAddress=10.100.100.111 \

all the pods are running and I can ping servers on internet via tun interface on UE + you can see i've set the free5gc-upf.upf.n6if.ipAddress as well as per the #14 .

$ kubectl --namespace free5gc exec -it $POD_NAME -- ping -I uesimtun0 www.google.com PING www.google.com (216.58.213.4) from 10.1.0.1 uesimtun0: 56(84) bytes of data. 64 bytes from ber01s14-in-f4.1e100.net (216.58.213.4): icmp_seq=1 ttl=54 time=21.5 ms

Now, when I trace route I see that the data is routed through the gateway, like this?

$ kubectl --namespace free5gc exec -it $POD_NAME -- traceroute -i uesimtun0 www.google.com traceroute to www.google.com (142.250.187.228), 30 hops max, 60 byte packets 1 10.1.92.8 (10.1.92.8) 0.747 ms 0.741 ms 0.728 ms 2 10.100.100.1 (10.100.100.1) 0.725 ms 0.722 ms 0.720 ms 3 * * * 4 * * * 5 * * * 6 * * * 7 * * *

when I open a shell into the UPF pod, i've these interfaces created.

IP forwarding is also set cat /proc/sys/net/ipv4/ip_forward gives 1.

ping to gateway is working but not going further from UPF, but UERANSIM is connecting to internet.

/free5gc/upf # ping -I n6 10.100.100.1 PING 10.100.100.1 (10.100.100.1): 56 data bytes 64 bytes from 10.100.100.1: seq=0 ttl=255 time=0.188 ms 64 bytes from 10.100.100.1: seq=1 ttl=255 time=0.271 ms 64 bytes from 10.100.100.1: seq=2 ttl=255 time=0.212 ms ^C --- 10.100.100.1 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.188/0.223/0.271 ms

Pinging Google DNS

/free5gc/upf # ping -I n6 8.8.8.8 PING 8.8.8.8 (8.8.8.8): 56 data bytes ^C --- 8.8.8.8 ping statistics --- 6 packets transmitted, 0 packets received, 100% packet loss

Pinging Google DNS using eth0 on UPF

/free5gc/upf # ping -I eth0 8.8.8.8 PING 8.8.8.8 (8.8.8.8): 56 data bytes ^C --- 8.8.8.8 ping statistics --- 6 packets transmitted, 0 packets received, 100% packet loss

mainly the issue is I'm not able to update the pod?

/free5gc/upf # apk update fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/main/x86_64/APKINDEX.tar.gz ERROR: https://dl-cdn.alpinelinux.org/alpine/v3.13/main: temporary error (try again later) WARNING: Ignoring https://dl-cdn.alpinelinux.org/alpine/v3.13/main: No such file or directory fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/community/x86_64/APKINDEX.tar.gz ERROR: https://dl-cdn.alpinelinux.org/alpine/v3.13/community: temporary error (try again later) WARNING: Ignoring https://dl-cdn.alpinelinux.org/alpine/v3.13/community: No such file or directory 2 errors; 25 distinct packages available

Please can you help?

[krupalb]

anyone?

[devopsjourney23]

You can look into my demo, Hopefully you'll find answer.

https://youtu.be/ZMGsWStz090

[krupalb]

You can look into my demo, Hopefully you'll find answer.

https://youtu.be/ZMGsWStz090

I've followed your exact steps but still the UPF pod cannot ping 8.8.8.8 !

[krupalb]

Also I have osx as base machine and VMware Fusion and Ubuntu VM as the os for running the cluster.

[krupalb]

The issue can be closed, I've managed to re-deploy with the correct Ubuntu Image and Kernel version, and the pings work from UPF and UERANSIM.