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free5GC Stage 2 Installation Guide

Minimum Requirement

  • Software
    • OS: Ubuntu 18.04 or later versions
    • gcc 7.3.0
    • Go 1.12.9 linux/amd64
    • QEMU emulator 2.11.1
**Note:** Please use Ubuntu 18.04 or later versions and go 1.12.9 linux/amd64

You can use go version to check your current Go version.

- Hardware
    - CPU: Intel i5 processor
    - RAM: 4GB
    - Hard drive: 160G
    - NIC card: 1Gbps ethernet card

- Hardware recommended
    - CPU: Intel i7 processor
    - RAM: 8GB
    - Hard drive: 160G
    - NIC card: 10Gbps ethernet card

Hardware Tested

There are no gNB and UE for standalone 5GC available in the market yet.


A. Install Control Plane Entities

  1. Install the required packages

    • sudo apt -y update
    • sudo apt -y install mongodb wget git
    • sudo systemctl start mongodb
  2. Go installation

    • If another version of Go is installed
      • Please remove the previous Go version
        • sudo rm -rf /usr/local/go
      • Install Go 1.12.9
        • wget
        • sudo tar -C /usr/local -zxvf go1.12.9.linux-amd64.tar.gz
    • Clean installation
      • Install Go 1.12.9
        • wget
        • sudo tar -C /usr/local -zxvf go1.12.9.linux-amd64.tar.gz
        • mkdir -p ~/go/{bin,pkg,src}
        • echo 'export GOPATH=$HOME/go' >> ~/.bashrc
        • echo 'export GOROOT=/usr/local/go' >> ~/.bashrc
        • echo 'export PATH=$PATH:$GOPATH/bin:$GOROOT/bin' >> ~/.bashrc
        • echo 'export GO111MODULE=off' >> ~/.bashrc
        • source ~/.bashrc
  3. Clone free5GC project in $GOPATH/src

    • cd $GOPATH/src
    • git clone free5gc
  4. Run the script to install dependent packages

    • cd $GOPATH/src/free5gc

    • chmod +x ./

    • ./

    • Please ignore error messages during the package dependencies installation process.

  5. Extract the free5gc_libs.tar.gz to setup the environment for compiling

    • cd $GOPATH/src/free5gc
    • tar -C $GOPATH -zxvf free5gc_libs.tar.gz
  6. Compile network function services in $GOPATH/src/free5gc, e.g. AMF:

    • cd $GOPATH/src/free5gc
    • go build -o bin/amf -x src/amf/amf.go
  7. Run network function services, e.g. AMF:

    • cd $GOPATH/src/free5gc

    • ./bin/amf

    • In step 3, the folder name should remain free5gc. Please do not modify it or the compilation would fail.

B. Install User Plane Entity (UPF)

  1. Install the required packages
    sudo apt -y update
    sudo apt -y install git gcc cmake autoconf libtool pkg-config libmnl-dev libyaml-dev
    go get -u
  2. Enter the UPF directory
    • cd $GOPATH/src/free5gc/src/upf
  3. Build from sources
    • mkdir build
    • cd build
    • cmake ..
    • make -j `nproc`
  4. Run UPF library test
    • (In directory: $GOPATH/src/free5gc/src/upf/build)
    • sudo ./bin/testgtpv1
  5. Config is located at $GOPATH/src/free5gc/src/upf/build/config/upfcfg.yaml

C. Run Procedure Tests

Start Wireshark to capture any interface with pfcp||icmp||gtp filter and run the tests below to simulate the procedures:

cd $GOPATH/src/free5gc
chmod +x ./

a. TestRegistration

(In directory: $GOPATH/src/free5gc)
sudo ./ TestRegistration

b. TestServiceRequest

sudo ./ TestServiceRequest

c. TestXnHandover

sudo ./ TestXnHandover

d. TestDeregistration

sudo ./ TestDeregistration

e. TestPDUSessionReleaseRequest

sudo ./ TestPDUSessionReleaseRequest

Appendix A: System Environment Cleaning

The below commands may be helpful for development purposes.

  1. Remove POSIX message queues
    • ls /dev/mqueue/
    • rm /dev/mqueue/*
  2. Remove gtp tunnels (using tools in libgtpnl)
    • cd ./src/upf/lib/libgtpnl-1.2.1/tools
    • ./gtp-tunnel list
  3. Remove gtp devices (using tools in libgtpnl)
    • cd ./src/upf/lib/libgtpnl-1.2.1/tools
    • sudo ./gtp-link del {Dev-Name}

Appendix B: Program the SIM Card

Install packages:

sudo apt-get install pcscd pcsc-tools libccid python-dev swig python-setuptools python-pip libpcsclite-dev
sudo pip install pycrypto

Download PySIM

git clone git://

Change to pyscard folder and install

cd <pyscard-path>
sudo /usr/bin/python build_ext install

Verify your reader is ready

sudo pcsc_scan

Check whether your reader can read the SIM card

cd <pysim-path>
./ –p 0

Program your SIM card information

./ -p 0 -x 208 -y 93 -t sysmoUSIM-SJS1 -i 208930000000003 --op=8e27b6af0e692e750f32667a3b14605d -k 8baf473f2f8fd09487cccbd7097c6862 -s 8988211000000088313 -a 23605945

You can get your SIM card from sysmocom. You also need a card reader to write your SIM card. You can get a card reader from here or use other similar devices.

Release Note



  • Add debug mode on NFs
  • Auto add Linux routing when UPF runs
  • Add AMF consumer for AM policy
  • Add SM policy
  • Allow security NIA0 and NEA0
  • Add handover feature
  • Add webui
  • Update license
  • Bugfix for incorrect DNN
  • Bugfix for NFs registering to NRF


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