[ERRO][UPF][Main] UPF Cli Run Error: open Gtp5g: open link: create: operation not supported

[Rockneeraj]

Setup: Single VM setup on EC2 created by following https://github.com/nephio-project/docs/tree/main/install-guide

Everything works fine till Step 6 on https://github.com/nephio-project/docs/blob/main/user-guide/exercises.md Step 7->Check UPF deployment, I am getting below error

ubuntu@ip-172-31-38-33:~$ kubectl -n free5gc-upf logs $UPF1_POD --context edge01-admin@edge01 RTNETLINK answers: File exists 2023-09-05T11:10:10Z [INFO][UPF][Main] UPF version: free5GC version: v3.2.1 build time: 2023-06-09T16:41:08Z commit hash: 4972fffb commit time: 2022-06-29T05:46:33Z go version: go1.20.5 linux/amd64 2023-09-05T11:10:10Z [INFO][UPF][Cfg] Read config from [/free5gc/config/upfcfg.yaml] 2023-09-05T11:10:10Z [INFO][UPF][Cfg] ================================================== 2023-09-05T11:10:10Z [INFO][UPF][Cfg] (factory.Config)(0xc0003d25f0)({ Version: (string) (len=5) "1.0.3", Description: (string) (len=17) "UPF configuration", Pfcp: (factory.Pfcp)(0xc0003e2fc0)({ Addr: (string) (len=11) "172.1.2.254", NodeID: (string) (len=11) "172.1.2.254", RetransTimeout: (time.Duration) 1s, MaxRetrans: (uint8) 3 }), Gtpu: (factory.Gtpu)(0xc0003e3170)({ Forwarder: (string) (len=5) "gtp5g", IfList: ([]factory.IfInfo) (len=1 cap=1) { (factory.IfInfo) { Addr: (string) (len=11) "172.3.1.254", Type: (string) (len=2) "N3", Name: (string) "", IfName: (string) "" } } }), DnnList: ([]factory.DnnList) (len=1 cap=1) { (factory.DnnList) { Dnn: (string) (len=8) "internet", Cidr: (string) (len=11) "10.1.0.0/24", NatIfName: (string) (len=2) "n6" } }, Logger: (factory.Logger)(0xc0003b6be0)({ Enable: (bool) true, Level: (string) (len=4) "info", ReportCaller: (bool) false }) }) 2023-09-05T11:10:10Z [INFO][UPF][Cfg] ================================================== 2023-09-05T11:10:10Z [INFO][UPF][Main] Log level is set to [info] level 2023-09-05T11:10:10Z [INFO][UPF][Main] starting Gtpu Forwarder [gtp5g] 2023-09-05T11:10:10Z [INFO][UPF][Main] GTP Address: "172.3.1.254:2152" 2023-09-05T11:10:10Z [ERRO][UPF][Main] UPF Cli Run Error: open Gtp5g: open link: create: operation not supported

Thankyou.

Regards NEERAJ

[Rockneeraj]

Team Please help me to resolve this issue, I am very exicited to see Nephio usecase running on our environment

[henderiw]

seems the GTP kernel module was not installed

[gvbalaji]

@Rockneeraj please see the comment above from Wim. Does it solve your issue?

[Rockneeraj]

Issue is resolved, I installed GTP manually.