What this error means?

Q/A
, ,
#1

Hello everyone, I was integrating the IP of the Amari Callbox Classic into free5GC. I followed the steps outlined in the amfcfg.yaml file. In the ngapIpList section, I entered the IP of Amari as 192.168.50.20, and also added the IP 127.0.1.100. Furthermore, I set the PLMN from 20893 to 00101.

  1. 2023-10-31T15:09:00.714681059Z [ERRO][UPF][Main] UPF Cli Run Error: open Gtp5g: open link: listen: listen udp4 192.168.50.20:2152: bind: cannot assign requested address
    MongoDB shell version v3.6.8
    connecting to: mongodb://127.0.0.1:27017/free5gc
    Implicit session: session { “id” : UUID(“6dee00a8-56e9-4ab0-9473-fe60529f3e28”) }
    MongoDB server version: 3.6.8
    false
    ./run.sh: line 112: mongosh: command not found

  2. 2023-10-31T15:09:01.238742640Z [ERRO][AMF][Ngap] Failed to listen: cannot assign requested address

Kindly help me.

BR
Kumar Satyam

#2

Does the network namespace in which the UPF is running have the IP address 192.168.50.20?
If not, you need to change upfcfg .gtpu.ifList[0].addr to use the correct IP address or simply 0.0.0.0.

Note that “list all the addresses” will not actually work; instead, only the last address would take effect.

Thus, it’s always recommended to set .gtpu.ifList[0].addr to 0.0.0.0.

#4