diff --git a/rakupgrade.sh b/rakupgrade.sh
new file mode 100644
index 0000000..6919b28
--- /dev/null
+++ b/rakupgrade.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+
+set -e
+
+INTERFACE="enp5s0"
+LOCAL_IP_SUFFIX=100
+LOCAL_PATH="./WisGateOS_2.2.13_RAK_b198_RAK636.rwi"
+REMOTE_PATH=" /tmp/WisGateOS_2.2.13_RAK_b198_RAK636.rwi"
+REMOTE_USER="root"
+SSH_OPTIONS="-o StrictHostKeyChecking=no"
+echo "🔎 Pobieram MAC adres swojego interfejsu..."
+
+OWN_MAC=$(cat /sys/class/net/${INTERFACE}/address | tr '[:lower:]' '[:upper:]')
+
+echo "✅ Własny MAC interfejsu $INTERFACE: $OWN_MAC"
+
+echo "🎧 Podsłuchuję DHCP pakiety, czekam na bramę..."
+
+DEVICE_MAC=$(sudo timeout 60 tcpdump -i $INTERFACE -nn -l -v udp port 67 or udp port 68 \
+    2>/dev/null | \
+    grep -oEi '([0-9a-f]{2}:){5}[0-9a-f]{2}' | \
+    grep -vi "$OWN_MAC" | \
+    head -n1)
+
+if [ -z "$DEVICE_MAC" ]; then
+    echo "❌ Nie udało się znaleźć żadnego pakietu DHCP poza własnym interfejsem."
+    exit 1
+fi
+
+echo "✅ Znaleziony MAC bramy: $DEVICE_MAC"
+
+# Rozbij MAC na bajty
+IFS=':' read -ra mac_bytes <<< "$DEVICE_MAC"
+LAST_B1=${mac_bytes[4]}
+LAST_B2=${mac_bytes[5]}
+
+LAST_B1_DEC=$((16#${LAST_B1}))
+LAST_B2_DEC=$((16#${LAST_B2}))
+
+GATEWAY_IP="169.254.${LAST_B1_DEC}.${LAST_B2_DEC}"
+LOCAL_IP="169.254.${LAST_B1_DEC}.${LOCAL_IP_SUFFIX}"
+
+echo "🌐 Gateway IP: $GATEWAY_IP"
+echo "🌐 Local IP:  $LOCAL_IP"
+
+echo "⚙️ Konfiguruję interfejs $INTERFACE..."
+
+# Ustawiamy IP lokalne
+sudo ip addr flush dev $INTERFACE
+sudo ip addr add ${LOCAL_IP}/24 dev $INTERFACE
+sudo ip link set $INTERFACE up
+
+echo "✅ Interfejs skonfigurowany."
+
+#Wgrywanie nowego FW     
+echo "📤 Kopiuję plik ${LOCAL_PATH} na urządzenie..."
+ssh $SSH_OPTIONS ${REMOTE_USER}@${GATEWAY_IP} "cat > ${REMOTE_PATH}" < $LOCAL_PATH
+echo "✅ Plik skopiowany."
+
+ssh $SSH_OPTIONS ${REMOTE_USER}@${GATEWAY_IP} "\
+sysupgrade ${REMOTE_PATH}"
+echo "✅ System upgraded successfull."
+echo "🎉 Wszystko gotowe!"
\ No newline at end of file