Wireguard einrichten

Installation

apt install wireguard -y

Konfiguration

Server

Keys erzeugen

wg genkey | sudo tee /etc/wireguard/priv.key
chmod go= /etc/wireguard/priv.key

cat /etc/wireguard/priv.key | wg pubkey | sudo tee >> /etc/wireguard/pub.key
nano /etc/wireguard/wg0.conf

Inhalt:

[Interface]
Address = 10.0.5.1/24
ListenPort = 51820
# Use your own private key, from /etc/wireguard/privatekey
PrivateKey = XXX 


#Routen einstellen damit Clients kommunizieren können
PostUp     = iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE; iptables -A FORWARD -i wg0 -o wg0 -j ACCEPT
PostDown   = iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE

[Peer]
# Client 1
PublicKey = XXX
# VPN client's IP address in the VPN
AllowedIPs = 10.0.5.2/32

echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf && sysctl -p && sysctl -w net.ipv4.ip_forward=1

wg-quick up wg0

OPNSense als Client

Instanz erzeugen Peer erzeugen nano /etc/wireguard/wg0.conf [Interface] PrivateKey = Address = 10.0.0.6/32 DNS = 192.168.1.14,1.1.1.1,8.8.8.8

1. Table = off

1. Route zum Homelab-Host *explizit* anlegen
2. PostUp = ip route add 192.168.1.17/32 dev %i
3. PostDown = ip route del 192.168.1.17/32 dev %i

[Peer] PublicKey = Endpoint = xsarts.de:51820 AllowedIPs = 192.168.1.0/24

Fehlerbehebung

Starten/Stoppen funktioniert nicht

Lösung 1

auszufüllen