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README.md
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README.md
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NextEPC is an implementation of 3GPP EPC(MME, SGW, PGW, HSS)
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---
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title: Installation
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order: 2
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page: guides
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---
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The implementation consists in several components:
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- lib/core : the library contains the core of the framework.
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memory pool, thread, lock, timer, ...
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This post will guide you on how to get installed with **NextEPC**. To date, **NextEPC** has been compiled and tested on GNU/Linux distributions(Debian, Ubuntu, Fedora, OpenSUSE) and FreeBSD.
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- lib/logger : the logging library
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We will describe this guide using **Ubuntu 16.04 LTS (Xenial)**. You'll need to install **Ubuntu** if you don't have it installed already. To get the latest Ubuntu version please visit the official Ubuntu website: [https://www.ubuntu.com/download/](https://www.ubuntu.com/download/).
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- lib/s1ap : the S1AP message encoding/decoding library
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## Install the dependencies for building the source
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- lib/nas : the NAS message encoding/decoding library
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The first step is to use **apt-get** to install all depedencies.
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- lib/s6a : the freeDiameter wrapper for S6A
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```bash
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sudo apt-get -y install git gcc flex bison make
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sudo apt-get -y install autoconf libtool pkg-config
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sudo apt-get -y install libsctp-dev libssl-dev
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sudo apt-get -y install libgnutls-dev libgcrypt-dev
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sudo apt-get -y install libmongoc-dev libbson-dev
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sudo apt-get -y install mongodb
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```
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- lib/gtp : the GTPv2-C/GTP-U protocol stack library
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## Retrieve the latest version of the source package
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- src/mme : the heart of MME protocol stack
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```bash
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git clone https://github.com/acetcom/nextepc
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```
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- src/hss : the heart of HSS protocol stack
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## Configure the build
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- src/sgw : the heart of SGW protocol stack
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```bash
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cd nextepc
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test -f configure || autoreconf -iv
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CFLAGS='-O2' ./configure --prefix=`pwd`/install
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```
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- src/pgw : the heart of PGW protocol stack
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## Compiling
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Hopefully, once you have completed the autotools configuration, you only need to run:
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See INSTALL.md for information on building and using this software.
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```bash
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make -j `nproc`
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```
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## Installing
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Once the compilation is complete, you can install in the configured paths with:
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```bash
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make install
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```
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(this might require sudo depending on the configured target directories)
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---
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title: Web Setup
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order: 3
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page: guides
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---
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NextEPC is configured with **Mongo DB**, which manages _Subscriber Information_ mainly, and **Configuration File** made in _JSON_ format.
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The configuration file can be modified using a general editor such as vi or emacs, but _Subscriber Information_ can be managed properly using _Mongo DB Client_.
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NextEPC provides **Web User Interface** solely designed to manage _Subscriber Information_ in an easy way without using _Mongo DB Client_. Let's how to install it from now on.
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## Install Node.js and NPM
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To get the latest **Node.js** and **NPM** version, you can visit the official **Node.js** website:
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[https://nodesjs.org/en/download/](https://nodesjs.org/en/download/).
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Or, you can install _Node.js_ and _NPM_ on **Ubuntu** as follows:
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```bash
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sudo apt-get -y install curl
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curl -sL https://deb.nodesource.com/setup_8.x | \
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sudo -E bash -
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sudo apt-get -y install nodejs
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```
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## Install the dependencies for building the source
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The first step is to use **npm** to install all depedencies.
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```bash
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cd nextepc/webui
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npm install
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```
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## Build Web User Interface
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```bash
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npm run build
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```
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## Running Web Server
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```bash
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npm run start
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```
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## Login with default account
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Use **Web Browser** to connect it. _http://localhost:3000_
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* Username : admin
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* Password : 1423
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Then, you can change your password in _Account_ Menu.
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---
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title: Network Configuration
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order: 4
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page: guides
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---
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NextEPC consists of five nodes such as _MME, SGW, PGW, HSS and PCRF_. Basically, each node can be installed in a physically separate host or in the same host.
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We will run these five nodes that make up NextEPC in a **Single Host**. The reason is why it is the easiest way to understand how to configure NextEPC network.
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## IP Configuration
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In order to run _MME, HSS, SGW, PGW, and PCRF_ on a **Single Host**, IP address is set by using **IP aliasing**.
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```bash
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sudo ifconfig eth1:hss 10.1.35.214/24 up
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sudo ifconfig eth1:mme 10.1.35.215/24 up
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sudo ifconfig eth1:sgw_s5 10.1.35.216/24 up
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sudo ifconfig eth1:sgw_s11 10.1.35.217/24 up
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sudo ifconfig eth1:pcrf 10.1.35.218/24 up
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sudo ifconfig eth1:pgw 10.1.35.219/24 up
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```
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## Setup for Data Path
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Use the **TUN Driver** to make _Data Path_ to be used by the **PGW**.
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```bash
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sudo ip tuntap add name pgwtun mode tun
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sudo ifconfig pgwtun 45.45.0.1/16 up
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```
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## Check Configuration File
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A configuration file is located `etc/nextepc.conf` from the installed paths. If you need to change the IP address for a particular problem, you should modify `XXXX_IPV4` field in the configuration file.
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For example, if you want the IP aliasing address of *PGW* to be _10.1.35.254_, `PGW.NETWORK.S5C_IPV4` and `PGW_NETWORK.S5U_IPV4` field should be updated like the followings.
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```json
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PGW :
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{
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FD_CONF_PATH : "/etc/freeDiameter
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NETWORK :
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{
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S5C_IPV4: "10.1.35.254",
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S5U_IPV4: "10.1.35.254"
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}
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TUNNEL:
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{
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DEV_NAME: "pgwtun"
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}
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IP_POOL :
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{
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CIDR: 45.45.45.0/24
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}
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DNS :
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{
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PRIMARY_IPV4: "8.8.8.8",
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SECONDARY_IPV4: "4.4.4.4"
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}
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}
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```
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## Testing Network Configuration
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Once you are done, run the testing script.
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```bash
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./test/testepc
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```
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You can see the simulated packet through **Wireshark**. _(FILTER : s1ap || gtpv2 || diameter)_
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---
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title: Running NextEPC
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order: 5
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page: guides
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---
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## Update GUMMEI and TAI
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The followings are the **GUMMEI** and **TAI** of the *MME* currently set to Default. Your *eNodeB* will also have a **PLMN ID** and **TAC** set. Refer to these parameters to change the setting of MME or eNodeB.
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```json
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GUMMEI:
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{
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PLMN_ID :
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{
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MCC : "001",
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MNC : "01"
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}
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MME_GID : 2,
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MME_CODE : 1
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},
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TAI:
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{
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PLMN_ID :
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{
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MCC: "001",
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MNC: "01",
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}
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TAC: 12345
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}
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```
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For reference, MME can set several GUMMEI and TAI as **JSON array notation** as follows.
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```json
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GUMMEI:
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[
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{
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PLMN_ID :
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{
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MCC : "001",
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MNC : "01"
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}
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MME_GID : 2,
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MME_CODE : 1
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},
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{
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PLMN_ID :
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{
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MCC : "005",
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MNC : "05"
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}
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MME_GID : 5,
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MME_CODE : 6
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},
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]
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TAI:
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[
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{
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PLMN_ID :
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{
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MCC: "001",
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MNC: "01",
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}
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TAC: 12345
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},
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{
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PLMN_ID :
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{
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MCC: "005",
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MNC: "05",
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}
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TAC: 6789
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}
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]
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```
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## Register Subscriber Information
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There is only one setting for this guide. The _Subscriber Information_ required for **HSS** should be registered in _Mongo DB_. Let's run the **Web User Interface** with `npm run start` as mentioned eariler.
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Connect http://localhost:3000 using Web Browser.
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* Go to Subscriber Menu
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* Click + Button to add Subscriber Information
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* Fill IMSI, Security(K, OP, AMF), APN in the Form
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* Click the `SAVE` Button
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## Running NextEPC
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Generally, to use NextEPC in several hosts, you must use an independent daemon called _mmed, sgwd, pgwd, hssd, and pcrfd_.
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However, we are preparing a more convenient daemon named **epcd**. It enables to service all five nodes of NextEPC.
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```bash
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./epcd
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```
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Turn on your **eNodeB** and **Mobile**. Check Wireshark!
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Hopefully, you can see the real packet for TAU/Service Request, Dedicated Bearer, Multiple APN, and S1/X2-Handover.
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