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Quickstart

Note: Open5GS supports installation of packages in Debian/Ubuntu and openSUSE environments. CentOS, Fedora, FreeBSD, and Mac OSX require you to [build with source code]({{ site.url }}{{ site.baseurl }}/docs/guide/02-building-open5gs-from-sources) {: .notice--warning}

Install Open5GS with a Package Manager

Ubuntu

Ubuntu makes it easy to install Open5GS as shown below,

$ sudo apt update
$ sudo apt install software-properties-common
$ sudo add-apt-repository ppa:open5gs/latest
$ sudo apt update
$ sudo apt install open5gs

Debian

The Open5GS packages for Debian are available on OBS. If you want to use the latest Debian version like Debian 10(Buster), you need to install MongoDB first.

$ sudo apt update
$ sudo apt install wget gnupg
$ wget -qO - https://www.mongodb.org/static/pgp/server-4.2.asc | sudo apt-key add -
$ echo "deb http://repo.mongodb.org/apt/debian buster/mongodb-org/4.2 main" | sudo tee /etc/apt/sources.list.d/mongodb-org.list
$ wget -qO - https://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/Debian_10/Release.key | sudo apt-key add -
$ sudo sh -c "echo 'deb http://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/Debian_10/ ./' > /etc/apt/sources.list.d/open5gs.list"
$ sudo apt update
$ sudo apt install mongodb-org
$ sudo apt install open5gs

Other distributions can be installed by changing the path.

https://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/Debian_10/
https://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/Debian_Testing/
https://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/Debian_Unstable/
https://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/Raspbian_10/
https://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/xUbuntu_18.04/
https://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/xUbuntu_19.04/
https://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/xUbuntu_19.10/
https://download.opensuse.org/repositories/home:/acetcom:/open5gs:/latest/xUbuntu_20.04/

Nightly package build are provided by Osmocom on OBS.

https://download.opensuse.org/repositories/network:/osmocom:/nightly/Debian_10/
https://download.opensuse.org/repositories/network:/osmocom:/nightly/Debian_Testing/
https://download.opensuse.org/repositories/network:/osmocom:/nightly/Debian_Unstable/
https://download.opensuse.org/repositories/network:/osmocom:/nightly/Raspbian_10/
https://download.opensuse.org/repositories/network:/osmocom:/nightly/xUbuntu_18.04/
https://download.opensuse.org/repositories/network:/osmocom:/nightly/xUbuntu_18.10/
https://download.opensuse.org/repositories/network:/osmocom:/nightly/xUbuntu_19.04/
https://download.opensuse.org/repositories/network:/osmocom:/nightly/xUbuntu_19.10/

openSUSE

Martin Hauke packaged Open5GS for openSUSE on OBS.

$ sudo zypper addrepo -f obs://home:mnhauke:open5gs home:mnhauke:open5gs
$ sudo zypper install mongodb-server mongodb-shell
$ sudo zypper install open5gs

Configure Open5GS

5G Core

Modify [install/etc/open5gs/amf.yaml](https://github.com/{{ site.github_username }}/open5gs/blob/master/configs/open5gs/amf.yaml.in) to set the NGAP IP address, PLMN ID, TAC and NSSAI.

In the below example we

  • use MCC-MNC of 901-70, as this is the home network of the default IMSIs of the sysmoUSIM-SJS1 cards.
  • use 10.10.0.5 for the NGAP connection of AMF to the gNB
  • use 10.11.0.7 for the GTP-U connection of UPF to the gNB
diff -u amf.yaml.old amf.yaml
--- amf.yaml.old	2020-06-21 23:34:14.643114779 -0400
+++ amf.yaml	2020-06-21 23:34:28.718482095 -0400
@@ -67,25 +67,25 @@
       - addr: 127.0.0.5
         port: 7777
     ngap:
-      - addr: 127.0.0.5
+      - addr: 10.10.0.5
     guami:
       - plmn_id:
-          mcc: 001
-          mnc: 01
+          mcc: 901
+          mnc: 70
         amf_id:
           region: 2
           set: 1
     tai:
       - plmn_id:
-          mcc: 001
-          mnc: 01
-        tac: 7
+          mcc: 901
+          mnc: 70
+        tac: 1
     plmn:
       - plmn_id:
-          mcc: 001
-          mnc: 01
+          mcc: 901
+          mnc: 70
         s_nssai:
           - sst: 1
-          - sd: 2
     security:
         integrity_order : [ NIA1, NIA2, NIA0 ]
         ciphering_order : [ NEA0, NEA1, NEA2 ]

Modify [install/etc/open5gs/upf.yaml](https://github.com/{{ site.github_username }}/open5gs/blob/master/configs/open5gs/upf.yaml.in) to set the GTP-U IP address.

diff -u upf.yaml.old upf.yaml
--- upf.yaml.old	2020-06-21 23:35:54.378631781 -0400
+++ upf.yaml	2020-06-21 23:36:02.978245251 -0400
@@ -61,6 +61,7 @@
     pfcp:
       - addr: 127.0.0.7
     gtpu:
-      - addr: 127.0.0.7
+      - addr: 10.11.0.7
     pdn:

After changing conf files, please restart Open5GS daemons.

$ sudo systemctl restart open5gs-amfd
$ sudo systemctl restart open5gs-upfd

EPC

Modify [install/etc/open5gs/mme.yaml](https://github.com/{{ site.github_username }}/open5gs/blob/master/configs/open5gs/mme.yaml.in) to set the S1AP IP address, PLMN ID, and TAC.

In the below example we

  • use MCC-MNC of 901-70, as this is the home network of the default IMSIs of the sysmoUSIM-SJS1 cards.
  • use 10.10.0.2 for the S1AP connection of MME to the eNB
  • use 10.11.0.6 for the GTP-U connection of SGW-U to the eNB
diff -u /etc/open5gs/mme.yaml.old /etc/open5gs/mme.yaml
--- mme.yaml.old	2018-04-15 18:28:31.000000000 +0900
+++ mme.yaml	2018-04-15 19:53:10.000000000 +0900
@@ -204,20 +204,20 @@ logger:
 mme:
     freeDiameter: @sysconfdir@/freeDiameter/mme.conf
     s1ap:
-      addr: 127.0.0.2
+      addr: 10.10.0.2
     gtpc:
       addr: 127.0.0.2
     gummei: 
       plmn_id:
-        mcc: 001
-        mnc: 01
+        mcc: 901
+        mnc: 70
       mme_gid: 2
       mme_code: 1
     tai:
       plmn_id:
-        mcc: 001
-        mnc: 01
-      tac: 7
+        mcc: 901
+        mnc: 70
+      tac: 1
     security:
         integrity_order : [ EIA1, EIA2, EIA0 ]
         ciphering_order : [ EEA0, EEA1, EEA2 ]

Modify [install/etc/open5gs/sgwu.yaml](https://github.com/{{ site.github_username }}/open5gs/blob/master/configs/open5gs/sgwu.yaml.in) to set the GTP-U IP address.

diff -u /etc/open5gs/sgwu.yaml.old /etc/open5gs/sgwu.yaml
--- sgwu.yaml.old	2018-04-15 18:30:25.000000000 +0900
+++ sgwu.yaml	2018-04-15 18:30:30.000000000 +0900
@@ -51,7 +51,7 @@ logger:
 #
 sgwu:
     gtpu:
-      addr: 127.0.0.6
+      addr: 10.11.0.6
     pfcp:
       addr: 127.0.0.6

After changing conf files, please restart Open5GS daemons.

$ sudo systemctl restart open5gs-mmed
$ sudo systemctl restart open5gs-sgwud

Install WebUI of Open5GS

Node.js is required to install WebUI of Open5GS

  1. Debian and Ubuntu based Linux distributions can install Node.js as follows:

    $ sudo apt update
$ sudo apt install curl
$ curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
$ sudo apt install nodejs

  2. To install Node.js on openSUSE, run the following:

    $ sudo zypper install nodejs8

You can now install WebUI of Open5GS.

$ curl -sL {{ site.url }}{{ site.baseurl }}/assets/webui/install | sudo -E bash -

Register Subscriber Information

Connect to http://localhost:3000 and login with admin account.

Username : admin
Password : 1423

Tip: You can change the password in Account Menu. {: .notice--info}

To add subscriber information, you can do WebUI operations in the following order:

  1. Go to Subscriber Menu.
  2. Click + Button to add a new subscriber.
  3. Fill the IMSI, security context(K, OPc, AMF), and APN of the subscriber.
  4. Click SAVE Button

Tip: This addition immediately affects Open5GS without restaring any daemon. {: .notice--info}

Adding a route for UE to have Internet connectivity

If your phone can connect to internet, you must run the following command in Open5GS-PGW installed host.

### Check IP Tables
$ sudo iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

### Check NAT Tables
$ sudo iptables -L -t nat
Chain PREROUTING (policy ACCEPT)
target     prot opt source               destination

Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Chain POSTROUTING (policy ACCEPT)
target     prot opt source               destination

### Enable IPv4 Forwarding
$ sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"

### Add NAT Rule
$ sudo iptables -t nat -A POSTROUTING -s 10.45.0.0/16 ! -o ogstun -j MASQUERADE

Note: For the first time, it is a good condition if you do not have any rules in the IP/NAT tables. If a program such as docker has already set up a rule, you will need to add a rule differently. {: .notice--danger}

Turn on your eNodeB and Phone

  • Connect your eNodeB to the IP of your server via the standard S1AP port of SCTP 36412 (for MME)
  • You can see actual traffic through wireshark -- srsenb.pcapng({{ site.url }}{{ site.baseurl }}/assets/pcapng/srsenb.pcapng).
  • You can view the log at /var/log/open5gs/*.log.

Uninstall Open5GS and WebUI

How to remove Open5GS package:

  1. On Ubuntu/Debian:

    $ sudo apt purge open5gs
$ sudo apt autoremove

  2. On openSUSE:

    $ sudo zypper rm open5gs

You may need to remove manually /var/log/open5gs unless it is empty.

$ sudo rm -Rf /var/log/open5gs

The WebUI of Open5GS can be removed as follows:

curl -sL {{ site.url }}{{ site.baseurl }}/assets/webui/uninstall | sudo -E bash -