Aktuelle Version vom 4. August 2026, 07:06 Uhr

Variablen

ct state new iif $WANDEV udp dport $VPNPORT accept

ct state new iif $VPNDEV oif $DMZDEV ip saddr $VPN ip daddr $DMZ accept

ct state new iif $VPNDEV oif $LANDEV ip saddr $VPN ip daddr $LAN accept

ct state new iif $VPNDEV oif $SERVERDEV ip saddr $VPN ip daddr $SERVER accept

@@ Zeile 1: / Zeile 1: @@
 = Variablen =
-*WANDEV = eth0
+*define WANDEV = enp0s3
-*LANDEV = ens19
+*define DMZDEV = enp0s8
-*VPNDEV = tun0
+*define LANDEV = enp0s9
-*OVPNPORT = 1194
+*define SERVERDEV = enp0s10
-*LAN = 10.82.228.0/24
+*define DMZ = 10.88.2XX.0/24
-*VPN = 172.31.2.0/24
+*define LAN = 172.26.2XX.0/24
+*define SERVER = 10.2XX.1.0/24
+*define VPNDEV = tun0
+*define VPNPORT = 1194
+*define VPN = 172.20.2XX.0/24
 {{#drawio:ipt-openvpn}}
 = Vorausgesetztes Connection Tracking =
+; Verschlüsselter Verkehr – OpenVPN UDP (input Kette)
-; Verschlüsselter Verkehr – OpenVPN UDP
+ ct state new iif $WANDEV udp dport $VPNPORT accept
-*nft add rule inet filter input iifname "$WANDEV" udp dport $OVPNPORT ct state new accept
+; VPN → DMZ Pakete aus dem Tunnel ins interne Netz (forward Kette)
+ ct state new iif $VPNDEV oif $DMZDEV ip saddr $VPN ip daddr $DMZ accept
-; VPN → LAN: Pakete aus dem Tunnel ins interne Netz
+; VPN → LAN Pakete aus dem Tunnel ins interne Netz (forward Kette)
-*nft add rule inet filter forward iifname "$VPNDEV" oifname "$LANDEV" ip saddr $VPN ip daddr $LAN ct state new accept
+ ct state new iif $VPNDEV oif $LANDEV ip saddr $VPN ip daddr $LAN accept
+; VPN → SERVER Pakete aus dem Tunnel ins interne Netz (forward Kette)
+ ct state new iif $VPNDEV oif $SERVERDEV ip saddr $VPN ip daddr $SERVER accept