# WWC (W-AGF) Environment Design
###### tags: `free5gc` `openairinterface`

:::info
- **Location:** RT LAB
- **Date:** Des 9, 2024
- **Agenda**
1. Open5GS
- VM OS : Ubuntu 22.04.6
- IP : 192.168.60.2
- ogstun : 10.45.0.1
1. UERANSIM & PPPoE server
- VM OS : Ubuntu 22.04.6
1. For client 1
- enp0s9 102.168.58.3
- uesimtun0 : 10.45.0.2
- ppp0 : 10.45.0.99
1. For Client 2
- enp0s8 192.168.60.3
- uesimtun1 : 10.45.0.3
- ppp1 : 10.45.0.98

1. PPPoE client 1
- VM OS : Ubuntu 22.04.6
- enp0s8 192.168.58.95
- ppp0 : 10.45.0.95
1. PPPoE client 1
- VM OS : Ubuntu 22.04.6
- enp0s8 192.168.60.97
- ppp0 : 10.45.0.97

- **Author:** Saffana Zyan DINI
- **Contact:** Zyzy <[e-mail]>
- **Reference:**
- [End to End test open5gs and Openairinterface CU/DU split](https://hackmd.io/@HMiZWWkbRWe7Lksri7E63g/SyaWXi3ZJe)

:::

# PPPoE server

## Install Requirement

sudo apt update
sudo apt install build-essential ppp libpcap-dev ppp-dev pppoeconf

## git clone

sudo git clone https://salsa.debian.org/dskoll/rp-pppoe.git
cd rp-pppoe/src
sudo ./configure --enable-plugin
sudo make
sudo make install

## config

sudo nano /etc/ppp/pppoe-server-options

noauth
logfile /var/log/pppoe.log
ms-dns 8.8.8.8          
mtu 1492
mru 1492
default-asyncmap
e-password
lcp-echo-interval 10
lcp-echo-failure 2

sudo nano /etc/ppp/chap-secrets
"001" * "123" *
"circuitID" * "123456" *

sudo nano /etc/ppp/options

## run pppoe server

sudo pppoe-server -I enp0s9 -L 10.45.0.99 -R 10.45.0.95 -N 1

## check interface

ifconfig ppp0

## check log

sudo tail -f /var/log/syslog
sudo tail -f /var/log/pppoe.log

## kill pppoe

sudo pkill pppoe-server

## remove pppoe

cd ~/rp-pppoe/src
sudo make clean
sudo rm -rf /etc/ppp/

## ip forwarding

sudo sysctl -w net.ipv4.ip_forward=1
sudo nano /etc/sysctl.conf
net.ipv4.ip_forward=1

## NAT Configuration

sudo iptables -t nat -A POSTROUTING -s 10.45.0.0/24 -o oaitun_ue1 -j MASQUERADE
sudo iptables -t nat -A POSTROUTING -s 10.45.0.0/24 -o uesimtun0 -j MASQUERADE

## ip rule route

sudo ip route add 10.45.0.0/24 dev oaitun_ue1
sudo ip route add 10.45.0.0/24 dev uesimtun0
sudo ip rule add from <RG IP> table 97 
sudo ip rule add from 10.45.0.97 table 97 
sudo ip route add 10.45.0.0/24 dev uesimtun1 table 97
ip route show table 97

# PPPoE client

sudo apt update
sudo apt install build-essential ppp libpcap-dev ppp-dev pppoeconf

sudo git clone https://salsa.debian.org/dskoll/rp-pppoe.git
cd rp-pppoe/src
sudo ./configure --enable-plugin
sudo make
sudo make install
cd /etc/ppp

sudo nano /etc/ppp/peers/rg

plugin rp-pppoe.so
enp0s9                # Interface Ethernet
user "circuitID"      # CircuitID
remotename RemoteID   # RemoteID
persist
noauth
defaultroute
hide-password
mtu 1492
mru 1492

## Kernel

    plugin /etc/ppp/plugins/rp-pppoe.so
    nic-enp0s9 # Interface Ethernet
    noauth
    remotename RemoteID # RemoteID 
    name circuitID # CircuitID
    noipdefault
    nodetach
    noaccomp
    nodeflate
    nopcomp
    novj
    novjccomp
    lcp-echo-interval 10

## auth

sudo nano /etc/ppp/pap-secrets
sudo nano /etc/ppp/chap-secrets

## Config IP

sudo nano /etc/netplan/00-installer-config.yaml
sudo netplan apply

## running RG

sudo pppd call rg

## stop RG

sudo pkill pppd

## set route

sudo ip route add 10.45.0.0/24 via 10.45.0.99

### **Verifikasi**
from RG

   ping 10.45.0.1

   traceroute 10.45.0.1

:dart: Open5gs test result
---
UE 1 log PDU session established
UE 2 Log PDU session established

:books: UERANSIM & PPPoE server test result
---
UE 1 log PDU session established
UE 2 Log PDU session established
active interface, for UE 1 and UE 2
config IP rule for routing path

:mag: PPPoE client 1 test result
---
PPPoE client 1 log
check connection with ping
check connection with traceroute

:closed_book: PPPoE client 2 test result
--
PPPoE client 2 log
wireshark of req-resp pppoe

check connection with ping
check connection with traceroute
pppoe authentication prosedure

:closed_book: Wireshark E2E test
--
this tcpdump catch from open5gs

==Importance== this is still on going