From a1c70cbad976ef1040e575dae24c150e7472f7ed Mon Sep 17 00:00:00 2001
From: "manuel.maier" <manuel.maier@maieredv.de>
Date: Fri, 23 Jan 2026 22:47:38 +0100
Subject: [PATCH] =?UTF-8?q?create=5Fpve-mgnt-vmbr.sh=20hinzugef=C3=BCgt?=
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---
 create_pve-mgnt-vmbr.sh | 44 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 create_pve-mgnt-vmbr.sh

diff --git a/create_pve-mgnt-vmbr.sh b/create_pve-mgnt-vmbr.sh
new file mode 100644
index 0000000..79660b0
--- /dev/null
+++ b/create_pve-mgnt-vmbr.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+# =====================================================
+# Proxmox VE: Linux Bridge xx_vmbrmgt erstellen
+# IP: 10.60.10.1/24 | Kein physischer Port
+# NAT & IP Forwarding aktiviert
+# =====================================================
+
+# Root-Check
+if [[ $EUID -ne 0 ]]; then
+    echo "Bitte als Root ausführen (sudo)"
+    exit 1
+fi
+
+BRIDGE_NAME="xx_vmbrmgt"
+BRIDGE_IP="10.60.10.1/24"
+INTERFACES_FILE="/etc/network/interfaces"
+
+echo "==> Backup der interfaces-Datei..."
+cp "$INTERFACES_FILE" "${INTERFACES_FILE}.bak.$(date +%Y%m%d-%H%M)"
+
+echo "==> Bridge $BRIDGE_NAME in $INTERFACES_FILE eintragen..."
+
+cat <<EOF >> "$INTERFACES_FILE"
+
+# --------------------------------------------------
+# VM Bridge $BRIDGE_NAME
+auto $BRIDGE_NAME
+iface $BRIDGE_NAME inet static
+        address $BRIDGE_IP
+        bridge-ports none
+        bridge-stp off
+        bridge-fd 0
+        post-up echo 1 > /proc/sys/net/ipv4/ip_forward
+        post-up iptables -t nat -A POSTROUTING -s '10.60.10.0/24' -o vmbr0 -j MASQUERADE
+        post-down iptables -t nat -F
+EOF
+
+echo "==> Bridge $BRIDGE_NAME konfiguriert."
+
+# Bridge direkt aktivieren
+echo "==> Bridge $BRIDGE_NAME aktivieren..."
+ifup $BRIDGE_NAME
+
+echo "✔ Bridge $BRIDGE_NAME ist jetzt aktiv!"
\ No newline at end of file