Doku: OPNsense-Routing für docbr0 (10.2.2.0/24).
Separates Dokument mit Route, Firewall, Tests und Fehlerbildern. Co-authored-by: Cursor <cursoragent@cursor.com>
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@@ -34,6 +34,7 @@ docu/
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| [shared/git-und-repos.md](shared/git-und-repos.md) | Gitea, Tokens, Clone-Pfade |
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| [migration/nextcloud-optimierung-und-updates.md](migration/nextcloud-optimierung-und-updates.md) | Nextcloud VM 101: Updates, Tuning, notify_push |
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| [guests/](guests/) | Docker-Stacks pro Gast (Compose, ohne Volumes/Daten) |
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| [guests/vm101-ubuntu/docbr0-opnsense-routing.md](guests/vm101-ubuntu/docbr0-opnsense-routing.md) | OPNsense: 10.2.2.0/24 erreichbar machen |
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## Code-Repos (separat von dieser Doku)
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@@ -10,6 +10,10 @@ Compose-Dateien und stack-relevante Konfiguration **ohne** Volumes, Datenbanken,
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Passwörter in den Repo-Dateien sind durch `REDACTED` ersetzt. Live-Werte nur auf dem jeweiligen Gast.
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| Gast | Routing / OPNsense |
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|------|-------------------|
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| [vm101-ubuntu](vm101-ubuntu/) | [docbr0-opnsense-routing.md](vm101-ubuntu/docbr0-opnsense-routing.md) |
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**Sync vom Gast (Beispiel VM 101):**
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```bash
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@@ -12,6 +12,8 @@
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Externes Docker-Netz für Container mit **festen IPs** (`10.2.2.0/24`).
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**Erreichbarkeit aus LAN/VLANs:** [docbr0-opnsense-routing.md](docbr0-opnsense-routing.md)
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| Stack / Service | Container | IP (docbr0) |
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|-----------------|-----------|-------------|
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| phpipam | phpipam-web | 10.2.2.19 |
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@@ -0,0 +1,180 @@
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# docbr0 (10.2.2.0/24) — Routing & OPNsense
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**Zweck:** Container mit festen IPs auf VM 101 aus dem lokalen Netz (LAN/VLANs) erreichbar machen.
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**Stand:** 2026-06-28
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**Betrifft:** OPNsense · VM 101 `ubuntu` (192.168.10.10) · Docker-Netz `docbr0`
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---
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## Kurzfassung
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| Was | Wo |
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|-----|-----|
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| Docker-Netz | `10.2.2.0/24` (`docbr0`, extern) |
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| Gateway für Container | **10.2.2.1** = VM 101 (Docker-Bridge auf dem Host) |
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| VM Management-IP | **192.168.10.10** (VLAN 10 / 192.168.10.0/24) |
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| OPNsense | Statische Route **10.2.2.0/24 → 192.168.10.10** + Firewall Pass |
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`10.2.2.1` ist **kein OPNsense-Interface** — nur die Bridge auf der VM.
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---
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## Topologie
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```
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Client (z.B. 192.168.10.50 oder 192.168.40.x)
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│
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▼
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OPNsense (192.168.10.1)
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│ Route: 10.2.2.0/24 via 192.168.10.10
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│ Firewall: Pass (Quell-VLAN → 10.2.2.0/24)
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▼
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VM 101 (192.168.10.10 eth0 + 10.2.2.1 docbr0)
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│ ip_forward=1, FORWARD ACCEPT
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▼
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Docker-Container (10.2.2.x)
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├── 10.2.2.254 NPM
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├── 10.2.2.253 Nextcloud
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├── 10.2.2.22 Gitea (git2)
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└── … siehe [README.md](README.md)
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```
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**Rückweg:** Container → Gateway 10.2.2.1 → VM → eth0 → OPNsense → Client.
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Kein NAT nötig (intern → intern).
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---
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## OPNsense einrichten
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### 1. Gateway (falls noch nicht vorhanden)
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**System → Gateways → Configuration → Single → +**
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| Feld | Wert |
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|------|------|
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| Name | `VM101_DOCKER` |
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| Interface | LAN / VLAN10 (`192.168.10.0/24`) |
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| IP address | **192.168.10.10** |
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| Disable Gateway Monitoring | optional an (Host pingt evtl. nicht als GW) |
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| Description | Docker docbr0 VM 101 |
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### 2. Statische Route
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**System → Routes → Configuration → +**
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| Feld | Wert |
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|------|------|
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| Network | **10.2.2.0/24** |
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| Gateway | **VM101_DOCKER** (192.168.10.10) |
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| Description | Docker docbr0 VM101 |
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**Apply Changes.**
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### 3. Firewall-Regeln
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**Firewall → Aliases → +** (optional, übersichtlicher)
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| Name | Type | Content |
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|------|------|---------|
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| `DOCKER_DOCBR0` | Network | `10.2.2.0/24` |
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**Firewall → Rules →** Interface der **Quelle** (z.B. **LAN** für 192.168.10.0/24):
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| Feld | Wert |
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|------|------|
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| Action | Pass |
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| Interface | LAN (bzw. VLAN10) |
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| Protocol | any |
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| Source | LAN net (oder spezifisches VLAN) |
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| Destination | `DOCKER_DOCBR0` / `10.2.2.0/24` |
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| Description | Allow → Docker docbr0 VM101 |
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**Weitere VLANs:** dieselbe Logik auf **jedem** Interface, von dem aus Clients kommen (z.B. IoT `192.168.40.0/24`), sonst blockiert Inter-VLAN-Firewall.
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Regel **oben** platzieren (vor generischen Block-Regeln).
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**Apply Changes.**
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---
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## Was bewusst nicht auf OPNsense
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| Maßnahme | Grund |
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|----------|--------|
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| Interface/VLAN `10.2.2.0/24` auf OPNsense | Netz existiert nur auf VM 101 |
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| Outbound NAT intern → 10.2.2.x | Routing reicht |
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| Port-Forward von WAN auf 10.2.2.x | Normaler Weg: DNS → NPM (10.2.2.254) |
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---
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## VM 101 (Docker-Host)
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Bereits vorhanden / relevant:
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| Check | Erwartung |
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|-------|-----------|
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| Bridge | `10.2.2.1/24` auf `docbr0` / `br-0362a13fe302` |
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| `ip_forward` | `1` |
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| FORWARD | policy ACCEPT |
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| Docker | `"iptables": false` — Fest-IPs auf docbr0 bleiben stabil |
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| Container-Internet | manuelles NAT → [../../pve1/scripts/vm101-docker-nat-rules.sh](../../pve1/scripts/vm101-docker-nat-rules.sh) |
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```bash
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# Auf VM 101
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ip route | grep 10.2.2
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ping -c1 10.2.2.253
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ping -c1 10.2.2.254
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sudo docker network inspect docbr0 --format '{{range .IPAM.Config}}{{.Subnet}}{{end}}'
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```
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---
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## Tests
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### Vom Client (lokal / VLAN)
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```bash
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traceroute 10.2.2.253 # erwartet Hop über 192.168.10.10
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ping 10.2.2.254
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curl -sI http://10.2.2.253/status.php
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curl -sI http://10.2.2.254
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```
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### Von OPNsense (Diagnostics → Ping)
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- Ziel `192.168.10.10` → OK
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- Ziel `10.2.2.253` → OK (wenn Route + VM-Forward stimmen)
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---
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## Fehlerbilder
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| Symptom | Wahrscheinliche Ursache |
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|---------|-------------------------|
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| Timeout, kein Hop zu .10 | Statische Route fehlt oder falscher Gateway |
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| Hop zu .10, dann Timeout | VM: Forwarding / Bridge; Container down |
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| Ping OK, HTTP nein | Container-Port / Dienst; nicht OPNsense |
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| Nur aus einem VLAN | Firewall-Regel fehlt auf Quell-Interface |
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| WAN-Zugriff gewünscht | Separat: DNS + NPM, nicht direkte 10.2.2-Route |
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---
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## Alltag vs. Admin-Zugriff
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| Zugriff | Empfehlung |
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|---------|------------|
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| **Benutzer** | Hostname (`cloud.jeanavril.com`) → NPM (10.2.2.254) → Backend |
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| **Admin / Debug** | Direkt `10.2.2.x` nach Route (Dockge, Container-Logs, Bypass NPM) |
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Split-DNS oder lokaler DNS-Eintrag für interne Namen ist unabhängig von der statischen Route — beides kann parallel existieren.
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---
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## Referenzen
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| Dokument | Inhalt |
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|----------|--------|
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| [README.md](README.md) | Stack-Liste, docbr0-IP-Tabelle |
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| [../../pve1/06_ubuntu-vm-nextcloud.md](../../pve1/06_ubuntu-vm-nextcloud.md) | Nextcloud, NPM, notify_push |
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| [../../shared/infrastruktur-netzwerk.md](../../shared/infrastruktur-netzwerk.md) | VLANs, Proxmox-Hosts |
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| [../../pve1/scripts/vm101-docker-nat-rules.sh](../../pve1/scripts/vm101-docker-nat-rules.sh) | Container-Internet (NAT) |
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@@ -17,6 +17,7 @@
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| 06 | [06_ubuntu-vm-nextcloud.md](06_ubuntu-vm-nextcloud.md) | VM 101 ubuntu, Nextcloud Status & Optimierung |
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| — | [scripts/](scripts/) | VM-101-Skripte (NAT, Wartungs-Cron, crontab) |
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| — | [../guests/vm101-ubuntu/](../guests/vm101-ubuntu/) | VM 101 Docker-Stacks (Compose, ohne Daten) |
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| — | [../guests/vm101-ubuntu/docbr0-opnsense-routing.md](../guests/vm101-ubuntu/docbr0-opnsense-routing.md) | OPNsense: Route/Firewall für 10.2.2.0/24 |
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## Shared
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@@ -34,6 +34,8 @@ Schema: VLAN-ID oft = drittes Oktett (`192.168.40.0/24` = VLAN 40)
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Details CT/VM-Netze: siehe Host-Doku unter `pve1/` bzw. `pve2/`.
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**Docker docbr0 auf VM 101 (10.2.2.0/24):** OPNsense-Route + Firewall → [guests/vm101-ubuntu/docbr0-opnsense-routing.md](../guests/vm101-ubuntu/docbr0-opnsense-routing.md)
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## Rollen
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- **pve2:** Produktiv, OPNsense VM 104, Home Assistant VM 106, Docker/Frigate CT 101, GPU-Host
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