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https://github.com/herlesupreeth/docker_open5gs

Docker files to run open5gs + IMS + eNB + gNB + NR-UE in a docker
https://github.com/herlesupreeth/docker_open5gs

5gc docker docker-open5gs enb epc gnb ims kamailio nr-sa-deploy nr-ue open5gs sgwu-container srslte-enb srsran ueransim volte

Last synced: 5 months ago
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Docker files to run open5gs + IMS + eNB + gNB + NR-UE in a docker

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README 

          
# docker_open5gs

Quite contrary to the name of the repository, this repository contains docker files to deploy an Over-The-Air (OTA) or RF simulated 4G/5G network using following projects:

- Core Network (4G/5G) - open5gs - https://github.com/open5gs/open5gs

- IMS (VoLTE + VoNR) - kamailio - https://github.com/kamailio/kamailio

- IMS HSS - https://github.com/nickvsnetworking/pyhss

- Osmocom HLR - https://github.com/osmocom/osmo-hlr

- Osmocom MSC - https://github.com/osmocom/osmo-msc

- srsRAN_4G (4G eNB + 4G UE + 5G UE) - https://github.com/srsran/srsRAN_4G

- srsRAN_Project (5G gNB) - https://github.com/srsran/srsRAN_Project

- UERANSIM (5G gNB + 5G UE) - https://github.com/aligungr/UERANSIM

- eUPF (5G UPF) - https://github.com/edgecomllc/eupf

- OpenSIPS IMS - https://github.com/OpenSIPS/opensips

- Sigscale OCS - https://github.com/sigscale/ocs

- Osmo-epdg + Strongswan-epdg

  - https://gitea.osmocom.org/erlang/osmo-epdg

  - https://gitea.osmocom.org/ims-volte-vowifi/strongswan-epdg

- SWu-IKEv2 - https://github.com/fasferraz/SWu-IKEv2



## Table of Contents



- [Tested Setup](#tested-setup)

- [Prepare Docker images](#prepare-docker-images)

  - [Get Pre-built Docker images](#get-pre-built-docker-images)

  - [Build Docker images from source](#build-docker-images-from-source)

- [Network and deployment configuration](#network-and-deployment-configuration)

  - [Single Host setup configuration](#single-host-setup-configuration)

  - [Multihost setup configuration](#multihost-setup-configuration)

    - [4G deployment](#4g-deployment)

    - [5G SA deployment](#5g-sa-deployment)

- [Network Deployment](#network-deployment)

- [Docker Compose files overview](#docker-compose-files-overview)

- [Provisioning of SIM information](#provisioning-of-sim-information)

  - [Provisioning of SIM information in open5gs HSS](#provisioning-of-sim-information-in-open5gs-hss-as-follows)

  - [Provisioning of IMSI and MSISDN with OsmoHLR](#provisioning-of-imsi-and-msisdn-with-osmohlr-as-follows)

  - [Provisioning of SIM information in pyHSS](#provisioning-of-sim-information-in-pyhss-is-as-follows)

  - [Provisioning of Diameter Peer + Subscriber information in Sigscale OCS](#provisioning-of-diameter-peer--subscriber-information-in-sigscale-ocs-as-follows-skip-if-ocs-is-not-deployed)

- [Testing VoWiFi with COTS UE](#testing-vowifi-with-cots-ue)

  - [Pre-requisites](#pre-requisites)

  - [Deploy the required components](#deploy-the-required-components)

  - [Provision SIM and IMS subscriber information](#provision-sim-and-ims-subscriber-information)

  - [Manually configure DNS settings on your phone (WiFi connection)](#manually-configure-dns-settings-on-your-phone-wifi-connection)

  - [UE configuration](#ue-configuration)

- [Not supported](#not-supported)



## Tested Setup



Docker host machine



- Ubuntu 22.04 or above



Over-The-Air setups: 



- srsRAN_Project gNB using Ettus USRP B210

- srsRAN_Project (5G gNB) using LibreSDR (USRP B210 clone)

- srsRAN_4G eNB using LimeSDR Mini v1.3

- srsRAN_4G eNB using LimeSDR-USB

- srsRAN_4G eNB using LibreSDR (USRP B210 clone)



RF simulated setups:



- srsRAN_4G (eNB + UE) simulation over ZMQ

- srsRAN_Project (5G gNB) + srsRAN_4G (5G UE) simulation over ZMQ

- UERANSIM (gNB + UE) simulator



## Prepare Docker images



* Mandatory requirements:

	* [docker-ce](https://docs.docker.com/install/linux/docker-ce/ubuntu) - Version 22.0.5 or above

	* [docker compose](https://docs.docker.com/compose) - Version 2.14 or above



You can either pull the pre-built docker images or build them from the source.



### Get Pre-built Docker images



Pull base images:

```

docker pull ghcr.io/herlesupreeth/docker_open5gs:master

docker tag ghcr.io/herlesupreeth/docker_open5gs:master docker_open5gs



docker pull ghcr.io/herlesupreeth/docker_grafana:master

docker tag ghcr.io/herlesupreeth/docker_grafana:master docker_grafana



docker pull ghcr.io/herlesupreeth/docker_metrics:master

docker tag ghcr.io/herlesupreeth/docker_metrics:master docker_metrics

```



You can also pull the pre-built images for additional components



For IMS components:

```

docker pull ghcr.io/herlesupreeth/docker_osmohlr:master

docker tag ghcr.io/herlesupreeth/docker_osmohlr:master docker_osmohlr



docker pull ghcr.io/herlesupreeth/docker_osmomsc:master

docker tag ghcr.io/herlesupreeth/docker_osmomsc:master docker_osmomsc



docker pull ghcr.io/herlesupreeth/docker_pyhss:master

docker tag ghcr.io/herlesupreeth/docker_pyhss:master docker_pyhss



docker pull ghcr.io/herlesupreeth/docker_kamailio:master

docker tag ghcr.io/herlesupreeth/docker_kamailio:master docker_kamailio



docker pull ghcr.io/herlesupreeth/docker_mysql:master

docker tag ghcr.io/herlesupreeth/docker_mysql:master docker_mysql



docker pull ghcr.io/herlesupreeth/docker_opensips:master

docker tag ghcr.io/herlesupreeth/docker_opensips:master docker_opensips

```



For srsRAN components:

```

docker pull ghcr.io/herlesupreeth/docker_srslte:master

docker tag ghcr.io/herlesupreeth/docker_srslte:master docker_srslte



docker pull ghcr.io/herlesupreeth/docker_srsran:master

docker tag ghcr.io/herlesupreeth/docker_srsran:master docker_srsran

```



For UERANSIM components:

```

docker pull ghcr.io/herlesupreeth/docker_ueransim:master

docker tag ghcr.io/herlesupreeth/docker_ueransim:master docker_ueransim

```



For EUPF component:

```

docker pull ghcr.io/herlesupreeth/docker_eupf:master

docker tag ghcr.io/herlesupreeth/docker_eupf:master docker_eupf

```



For Sigscale OCS component:

```

docker pull ghcr.io/herlesupreeth/docker_ocs:master

docker tag ghcr.io/herlesupreeth/docker_ocs:master docker_ocs

```



For Osmo-epdg + Strongswan-epdg component:

```

docker pull ghcr.io/herlesupreeth/docker_osmoepdg:master

docker tag ghcr.io/herlesupreeth/docker_osmoepdg:master docker_osmoepdg

```



For SWu-IKEv2 component:

```

docker pull ghcr.io/herlesupreeth/docker_swu_client:master

docker tag ghcr.io/herlesupreeth/docker_swu_client:master docker_swu_client

```



### Build Docker images from source

#### Clone repository and build base docker image of open5gs, kamailio, srsRAN_4G, srsRAN_Project, ueransim



```

# Build docker image for open5gs EPC/5GC components

git clone https://github.com/herlesupreeth/docker_open5gs

cd docker_open5gs/base

docker build --no-cache --force-rm -t docker_open5gs .



# Build docker image for kamailio IMS components

cd ../ims_base

docker build --no-cache --force-rm -t docker_kamailio .



# Build docker image for srsRAN_4G eNB + srsUE (4G+5G)

cd ../srslte

docker build --no-cache --force-rm -t docker_srslte .



# Build docker image for srsRAN_Project gNB

cd ../srsran

docker build --no-cache --force-rm -t docker_srsran .



# Build docker image for UERANSIM (gNB + UE)

cd ../ueransim

docker build --no-cache --force-rm -t docker_ueransim .



# Build docker image for EUPF

cd ../eupf

docker build --no-cache --force-rm -t docker_eupf .



# Build docker image for OpenSIPS IMS

cd ../opensips_ims_base

docker build --no-cache --force-rm -t docker_opensips .



# Build docker image for Osmo-epdg + Strongswan-epdg

cd ../osmoepdg

docker build --no-cache --force-rm -t docker_osmoepdg .



# Build docker image for SWu-IKEv2

cd ../swu_client

docker build --no-cache --force-rm -t docker_swu_client .

```



#### Build docker images for additional components



```

cd ..

set -a

source .env

set +a

sudo ufw disable

sudo sysctl -w net.ipv4.ip_forward=1

sudo cpupower frequency-set -g performance



# For 4G deployment only

docker compose -f 4g-volte-deploy.yaml build



# For 5G deployment only

docker compose -f sa-deploy.yaml build

```



## Network and deployment configuration



The setup can be mainly deployed in two ways:



1. Single host setup where eNB/gNB and (EPC+IMS)/5GC are deployed on a single host machine

2. Multi host setup where eNB/gNB is deployed on a separate host machine than (EPC+IMS)/5GC



### Single Host setup configuration

Edit only the following parameters in **.env** as per your setup



```

MCC

MNC

DOCKER_HOST_IP --> This is the IP address of the host running your docker setup

UE_IPV4_INTERNET --> Change this to your desired (Not conflicted) UE network ip range for internet APN

UE_IPV4_IMS --> Change this to your desired (Not conflicted) UE network ip range for ims APN

```



### Multihost setup configuration



#### 4G deployment



###### On the host running the (EPC+IMS)



Edit only the following parameters in **.env** as per your setup

```

MCC

MNC

DOCKER_HOST_IP --> This is the IP address of the host running (EPC+IMS)

SGWU_ADVERTISE_IP --> Change this to value of DOCKER_HOST_IP

UE_IPV4_INTERNET --> Change this to your desired (Not conflicted) UE network ip range for internet APN

UE_IPV4_IMS --> Change this to your desired (Not conflicted) UE network ip range for ims APN

```



Under **mme** section in docker compose file (**4g-volte-deploy.yaml**), uncomment the following part

```

...

    # ports:

    #   - "36412:36412/sctp"

...

```



Then, uncomment the following part under **sgwu** section

```

...

    # ports:

    #   - "2152:2152/udp"

...

```



###### On the host running the eNB



Edit only the following parameters in **.env** as per your setup

```

MCC

MNC

DOCKER_HOST_IP --> This is the IP address of the host running eNB

MME_IP --> Change this to IP address of host running (EPC+IMS)

SRS_ENB_IP --> Change this to the IP address of the host running eNB

```



Replace the following part in the docker compose file (**srsenb.yaml**)

```

    networks:

      default:

        ipv4_address: ${SRS_ENB_IP}

networks:

  default:

    external:

      name: docker_open5gs_default

```

with 

```

	network_mode: host

```



#### 5G SA deployment



###### On the host running the 5GC



Edit only the following parameters in **.env** as per your setup

```

MCC

MNC

DOCKER_HOST_IP --> This is the IP address of the host running 5GC

UPF_ADVERTISE_IP --> Change this to value of DOCKER_HOST_IP

UE_IPV4_INTERNET --> Change this to your desired (Not conflicted) UE network ip range for internet APN

UE_IPV4_IMS --> Change this to your desired (Not conflicted) UE network ip range for ims APN

```



Under **amf** section in docker compose file (**sa-deploy.yaml**), uncomment the following part

```

...

    # ports:

    #   - "38412:38412/sctp"

...

```



Then, uncomment the following part under **upf** section

```

...

    # ports:

    #   - "2152:2152/udp"

...

```



###### On the host running the gNB



Edit only the following parameters in **.env** as per your setup

```

MCC

MNC

DOCKER_HOST_IP --> This is the IP address of the host running gNB

AMF_IP --> Change this to IP address of host running 5GC

SRS_GNB_IP --> Change this to the IP address of the host running gNB

```



Replace the following part in the docker compose file (**srsgnb.yaml**)

```

    networks:

      default:

        ipv4_address: ${SRS_GNB_IP}

networks:

  default:

    external: true

    name: docker_open5gs_default

```

with 

```

	network_mode: host

```



## Network Deployment



###### 4G deployment



```

# 4G Core Network + IMS + SMS over SGs (uses Kamailio IMS)

docker compose -f 4g-volte-deploy.yaml up



# 4G Core Network + IMS + SMS over SGs (uses openSIPS IMS)

docker compose -f 4g-volte-opensips-ims-deploy.yaml up



# srsRAN eNB using SDR (OTA)

docker compose -f srsenb.yaml up -d && docker container attach srsenb



# srsRAN ZMQ eNB (RF simulated)

docker compose -f srsenb_zmq.yaml up -d && docker container attach srsenb_zmq



# srsRAN ZMQ 4G UE (RF simulated)

docker compose -f srsue_zmq.yaml up -d && docker container attach srsue_zmq



# 4G Core Network + IMS + SMS over SGs (uses Kamailio IMS) + Osmo-epdg + Strongswan-epdg

docker compose -f 4g-volte--vowifi-deploy.yaml up



# SWu-IKEv2 (ePDG testing)

docker compose -f swu_client.yaml up -d && docker container attach swu_client

```



###### 5G SA deployment



```

# 5G Core Network

docker compose -f sa-deploy.yaml up



# srsRAN gNB using SDR (OTA)

docker compose -f srsgnb.yaml up -d && docker container attach srsgnb



# srsRAN ZMQ gNB (RF simulated)

docker compose -f srsgnb_zmq.yaml up -d && docker container attach srsgnb_zmq



# srsRAN ZMQ 5G UE (RF simulated)

docker compose -f srsue_5g_zmq.yaml up -d && docker container attach srsue_5g_zmq



# UERANSIM gNB (RF simulated)

docker compose -f nr-gnb.yaml up -d && docker container attach nr_gnb



# UERANSIM NR-UE (RF simulated)

docker compose -f nr-ue.yaml up -d && docker container attach nr_ue

```



## Docker Compose files overview



This repository provides several Docker Compose files to support different deployment scenarios and components. Below is a summary of the compose files and their purposes:



| Compose File                       | Description                                                                                        |

|------------------------------------|----------------------------------------------------------------------------------------------------|

| `4g-volte-deploy.yaml`             | Deploys 4G Core Network (EPC) with IMS (VoLTE) using Kamailio.                                     |

| `4g-volte-opensips-ims-deploy.yaml`| Deploys 4G Core Network with IMS using OpenSIPS.                                                   |

| `sa-deploy.yaml`                   | Deploys 5G Standalone (SA) Core Network (5GC).                                                     |

| `sa-vonr-deploy.yaml`              | Deploys 5G Standalone (SA) Core Network (5GC) with IMS (VoNR) using Kamailio.                      |

| `srsenb.yaml`                      | Deploys srsRAN 4G eNB for OTA setups using SDR hardware.                                           |

| `srsenb_zmq.yaml`                  | Deploys srsRAN 4G eNB for RF simulated setups over ZMQ.                                            |

| `srsue_zmq.yaml`                   | Deploys srsRAN 4G UE for RF simulated setups over ZMQ.                                             |

| `srsran.yaml`                      | Deploys srsRAN_4G components (eNB/UE).                                                             |

| `srsgnb.yaml`                      | Deploys srsRAN 5G gNB for OTA setups using SDR hardware.                                           |

| `srsgnb_zmq.yaml`                  | Deploys srsRAN 5G gNB for RF simulated setups over ZMQ.                                            |

| `srsue_5g_zmq.yaml`                | Deploys srsRAN 5G UE for RF simulated setups over ZMQ.                                             |

| `nr-gnb.yaml`                      | Deploys UERANSIM 5G gNB simulator.                                                                 |

| `nr-ue.yaml`                       | Deploys UERANSIM 5G UE simulator.                                                                  |

| `4g-volte-ocs-deploy.yaml`         | Deploys 4G Core Network (EPC) + Sigscale OCS with IMS (VoLTE) using Kamailio.                      |

| `4g-external-ims-deploy.yaml`      | Deploys 4G Core Network (EPC) + Sigscale OCS + PyHSS (IMS) with no IMS components.                 |

| `4g-volte-vowifi-deploy.yaml`      | Deploys 4G Core Network (EPC) + Osmocom EPDG with IMS (VoLTE/VoWiFi) using Kamailio.               |

| `swu_client.yaml`                  | Deploys SWu-IKEv2 client for ePDG testing.                                                         |

| `sa-vonr-ibcf-deploy.yaml`         | Deploys 5G Standalone (SA) Core Network (5GC) + IMS (VoNR) using Kamailio + IBCF.                  |

| `sa-vonr-opensips-ims-deploy.yaml` | Deploys 5G Standalone (SA) Core Network (5GC) with IMS (VoNR) using OpenSIPS (Experimental).       |

| `oaienb.yaml`                      | Deploys OAI eNB for OTA setups using SDR hardware (Untested and Unmaintained).                     |

| `oaignb.yaml`                      | Deploys OAI 5G gNB for OTA setups using SDR hardware (Untested and Unmaintained).                  |



## Provisioning of SIM information



### Provisioning of SIM information in open5gs HSS as follows:



Open (http://:9999) in a web browser, where  is the IP of the machine/VM running the open5gs containers. Login with following credentials

```

Username : admin

Password : 1423

```



Using Web UI, add a subscriber with following details:



```

IMSI :  (e.g. 001010123456790)

MSISDN :  (e.g. 9076543210)

AMF : 8000

K :  (e.g. 8baf473f2f8fd09487cccbd7097c6862)

OPC :  (e.g. 8E27B6AF0E692E750F32667A3B14605D)



APN Configuration:

---------------------------------------------------------------------------------------------------------------------

| APN      | Type | QCI | ARP | Capability | Vulnerablility | MBR DL/UL(Kbps)     | GBR DL/UL(Kbps) | PGW IP        |

---------------------------------------------------------------------------------------------------------------------

| internet | IPv4 | 9   | 8   | Disabled   | Disabled       | unlimited/unlimited |                 |               |

|          |      | 1   | 2   | Enabled    | Enabled        | 128/128             | 128/128         |               |

|          |      | 2   | 4   | Enabled    | Enabled        | 128/128             | 128/128         |               |

---------------------------------------------------------------------------------------------------------------------

| ims      | IPv4 | 5   | 1   | Disabled   | Disabled       | 3850/1530           |                 |               |

|          |      | 1   | 2   | Enabled    | Enabled        | 128/128             | 128/128         |               |

|          |      | 2   | 4   | Enabled    | Enabled        | 128/128             | 128/128         |               |

---------------------------------------------------------------------------------------------------------------------

```



#### or using cli 



```

sudo docker exec -it hss misc/db/open5gs-dbctl add 001010123456790 8baf473f2f8fd09487cccbd7097c6862 8E27B6AF0E692E750F32667A3B14605D

```

**NOTE:** Adding via CLI does not add the desired APN configuration. You need to add the APN configuration via Web UI as mentioned above.



### Provisioning of IMSI and MSISDN with OsmoHLR as follows:



1. First, telnet to OsmoHLR from host machine using the following command:



```

$ telnet 172.22.0.32 4258



OsmoHLR> enable

OsmoHLR#

```



2. Then, register the subscriber information as in following example:



```

OsmoHLR# subscriber imsi 001010123456790 create

OsmoHLR# subscriber imsi 001010123456790 update msisdn 9076543210

```



**Replace IMSI and MSISDN as per your programmed SIM**



### Provisioning of SIM information in pyHSS is as follows:



1. Goto http://:8080/docs/

2. Select **apn** -> **Create new APN** -> Press on **Try it out**. Then, in payload section use the below JSON and then press **Execute**



```

{

  "apn": "internet",

  "apn_ambr_dl": 0,

  "apn_ambr_ul": 0

}

```



Take note of **apn_id** specified in **Response body** under **Server response** for **internet** APN



Repeat creation step for following payload



```

{

  "apn": "ims",

  "apn_ambr_dl": 0,

  "apn_ambr_ul": 0

}

```



Take note of **apn_id** specified in **Response body** under **Server response** for **ims** APN



**Execute this step of APN creation only once**



3. Next, select **auc** -> **Create new AUC** -> Press on **Try it out**. Then, in payload section use the below example JSON to fill in ki, opc and amf for your SIM and then press **Execute**



```

{

  "ki": "8baf473f2f8fd09487cccbd7097c6862",

  "opc": "8E27B6AF0E692E750F32667A3B14605D",

  "amf": "8000",

  "sqn": 0,

  "imsi": "001010123456790"

}

```



Take note of **auc_id** specified in **Response body** under **Server response**



**Replace imsi, ki, opc and amf as per your programmed SIM**



4. Next, select **subscriber** -> **Create new SUBSCRIBER** -> Press on **Try it out**. Then, in payload section use the below example JSON to fill in imsi, auc_id and apn_list for your SIM and then press **Execute**



```

{

  "imsi": "001010123456790",

  "enabled": true,

  "auc_id": 1,

  "default_apn": 1,

  "apn_list": "1,2",

  "msisdn": "9076543210",

  "ue_ambr_dl": 0,

  "ue_ambr_ul": 0

}

```



- **auc_id** is the ID of the **AUC** created in the previous steps

- **default_apn** is the ID of the **internet** APN created in the previous steps

- **apn_list** is the comma separated list of APN IDs allowed for the UE i.e. APN ID for **internet** and **ims** APN created in the previous steps



**Replace imsi and msisdn as per your programmed SIM**



5. Finally, select **ims_subscriber** -> **Create new IMS SUBSCRIBER** -> Press on **Try it out**. Then, in payload section use the below example JSON to fill in imsi, msisdn, msisdn_list, scscf_peer, scscf_realm and scscf for your SIM/deployment and then press **Execute**



```

{

    "imsi": "001010123456790",

    "msisdn": "9076543210",

    "sh_profile": "string",

    "scscf_peer": "scscf.ims.mnc001.mcc001.3gppnetwork.org",

    "msisdn_list": "[9076543210]",

    "ifc_path": "default_ifc.xml",

    "scscf": "sip:scscf.ims.mnc001.mcc001.3gppnetwork.org:6060",

    "scscf_realm": "ims.mnc001.mcc001.3gppnetwork.org"

}

```



**Replace imsi, msisdn and msisdn_list as per your programmed SIM**



**Replace scscf_peer, scscf and scscf_realm as per your deployment**



### Provisioning of Diameter Peer + Subscriber information in Sigscale OCS as follows (Skip if OCS is not deployed):



1. Goto http://:8083

2. Login with following credentials

```

Username : admin

Password : admin

```

3. Configure SMF as Diameter Peer as mentioned here - https://sigscale.atlassian.net/wiki/spaces/SO/pages/3833890/How-To+with+OCS#Add-an-DIAMETER-client-(DRA%2FSGSN%2FPGW)



    **NOTE:** IP address must be equal to **SMF_IP** in **.env** file and the Protocol must be set to Diameter.



4. Subscriber information can be provisioned as mentioned here - https://sigscale.atlassian.net/wiki/spaces/SO/pages/3833890/How-To+with+OCS#Add-a-subscriber



    **NOTE:** The IMSI and the MSISDN must be equal to the one provisioned in open5gs HSS and/or pyHSS.



## Testing VoWiFi with COTS UE



#### Pre-requisites

  - Set DOCKER_HOST_IP to the IP of the host machine where docker_open5gs is deployed.



#### Deploy the required components

  Ensure you have the following services running:

  - 4G Core Network (EPC)

  - IMS (Kamailio or OpenSIPS)

  - Osmo-ePDG and Strongswan-ePDG



  Start the VoWiFi-enabled deployment using:

  ```

  docker compose -f 4g-volte-vowifi-deploy.yaml up

  ```



#### Provision SIM and IMS subscriber information

  - Add subscriber details in open5gs HSS or pyHSS as described in the provisioning sections above.

  - Ensure the IMSI, MSISDN, and authentication keys match those programmed on your SIM.



#### Manually configure DNS settings on your phone (WiFi connection)

  - On your phone, go to the WiFi settings and select the network you are connected to.

  - Edit the network settings and look for the DNS configuration option (may be under "Advanced" or "IP settings").

    - On Android devices, switch from DHCP to Static IP configuration to manually set DNS.

    - On iOS devices, you can directly set the DNS server.

  - Set the DNS server to point to DOCKER_HOST_IP.

  - Save the settings and reconnect to the WiFi network.



  **Tip:** Proper DNS resolution is required for the UE to locate and register with IMS and ePDG services.



#### UE configuration

  - On your UE (User Equipment), ensure VoWiFi (WiFi calling) is enabled.



## Not supported

- IPv6 usage in Docker