- Create 2 VMs for Open5gs and UERANSIM.
-
Check the IP of each VM and note it down.
## to check the IP address of VM ip a
-
Open the local terminal and connect to each VM at different windows.
## connect to the VM
ssh <VM-login-name>@<VM-ip>
- Make the IP address of each VM, static, to make it easier for users to find you via DNS.
cd /etc/netplan/
ls
sudo vim 00-installer-config.yaml- Remove all context and paste the below context there.
## change ip address of 'addresses field' as preferred by you
network:
ethernets:
enp1s0:
addresses:
- 192.168.122.245/24
gateway4: 192.168.122.1
nameservers:
addresses:
- 8.8.8.8
- 8.8.4.4
search: []
version: 2
sudo netplan apply
-
Now open another terminal and logged in to the same VM. Close the running terminal.
-
Do similar with the other VM.
-
First we deploy Open5gs then UERANSIM because we need Open5gs configuration in UERANSIM.
- Run the following commands in the Open5gs VM.
sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository ppa:open5gs/latest
sudo apt update
sudo apt install open5gs- Update the
amfconfiguration
sudo vim /etc/open5gs/amf.yaml - Change the
ngap addresswith your Open5gs IP.
sudo systemctl restart open5gs-amfd- Update the
upfconfiguration
sudo vim /etc/open5gs/upf.yaml - Change the
gtpu addresswith your Open5gs IP address and save it.
sudo systemctl restart open5gs-upfd- To create a connection between 5G Core and Internet, we need to enable IP forwarding and add a NAT rule to the IP Tables.
## change eth0 with your ethernet interface
## to check your ethernet interface
ip a
## In my case it is enp1s0,
## en --> ethernet
## p1 --> bus number (1)
## s0 --> slot number (0)
sudo sysctl -w net.ipv4.ip_forward=1
sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
sudo systemctl stop ufw
sudo iptables -I FORWARD 1 -j ACCEPT
sudo apt update
sudo apt install curl
curl -fsSL https://deb.nodesource.com/setup_14.x | sudo -E bash -
sudo apt install nodejs
git clone https://github.com/open5gs/open5gs.gitcd open5gs/webui/
npm ci --no-optional && npm run build
npm run dev --host 0.0.0.0- Run the below command to access open5gs dashboard locally.
ssh -L localhost:3000:localhost:3000 <open5gs-VM-login-name>@<open5gs-ip>-
Open any browser and search for this website:
http://localhost:3000 -
Login credentials :
username- admin
password- 1423
- Add new subscriber from dashboard :
IMSI: 901700000000001
Subscriber Key: 465B5CE8B199B49FAA5F0A2EE238A6BC
USIM Type: OPc
Operator Key: E8ED289DEBA952E4283B54E88E6183CA
- Or only type IMSI Number, rest will filled up automatically.
- On a new terminal, logged in to the UERANSIM VM and run below commands.
sudo apt update
sudo apt upgrade -y
sudo apt install iproute2
sudo snap install cmake --classic
sudo apt install gcc
sudo apt install g++
sudo apt install libsctp-dev
## clone ueransim
git clone https://github.com/aligungr/UERANSIM
cd UERANSIM/
sudo apt install make
make- Update the
linkIp,ngapIp,gtpIpfield with UERANSIM IP and change theamfConfigs addressfield with Open5gs IP and save it.
sudo vim config/open5gs-gnb.yaml 
cd UERANSIM/
sudo ./build/nr-gnb -c config/open5gs-gnb.yaml-
Now, open a new terminal and logged in to the UERANSIM VM.
-
Update the
gnbSearchListwith the IP address of the UERANSIM.
sudo vim UERANSIM/config/open5gs-ue.yaml
cd UERANSIM/
sudo ./build/nr-ue -c config/open5gs-ue.yaml-
Keep the last 2 terminals running gNB and UE opened.
-
Open another terminal and logged in to the UERANSIM VM and run below commands to store the data packets.
## change ip field with your UERANSIM IP.
## change the file name where you want to store packets.
sudo tcpdump host <ip> -i any -w <file-name>.pcap- Open a new local terminal and run this command:
scp <UERANSIM-VMlogin-name>@<UERANSIM-ip>:<location_of_the_file_in_the_VM> <location_to_store_the_file_in_the_local_device>
## e.g. scp [email protected]:/home/UERANSIM/file.pcap /home/shubham/file.pcap-
After sometime, stop the terminal running
sudo tcpdump host <ip> -i any -w <file-name>.pcapcommand. -
The packets are stored in the pcap file. Open the file the in wireshark. You can see the flow of data packets and protocols used.
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