diff --git a/mac.py b/mac.py
new file mode 100644
index 0000000..35d3783
--- /dev/null
+++ b/mac.py
@@ -0,0 +1,213 @@
+from pymysql import connect
+from ipaddress import IPv4Network
+from randmac import RandMac
+from sys import stderr, argv
+from subprocess import run, PIPE
+
+
+DB_HOST = ""
+DB_USER = ""
+DB_PASS = ""
+DB_NAME = ""
+
+SSH_HOST = ""
+SSH_PORT = ""
+SSH_KEY = ""
+SSH_USER = ""
+
+DEFAULT_INTERFACE = ""
+
+debug = False
+
+if debug:
+	print("DEBUG MOD ACTICATED !")
+
+def main(args):
+	"""
+	args: list
+		List of IP prefix
+
+	This function get from DB and routeur IPs and MACs, create insertion list and sent it
+	"""
+
+	# DB connection
+	try:
+		print("Connect to DB...")
+		db = connect(DB_HOST, DB_USER, DB_PASS, DB_NAME)
+		cursor = db.cursor()
+	except:
+		print("Can't connect to DB !", file=stderr)
+		exit(1)
+	else:
+		print("Connected to DB")
+
+	# Get IPs from DB
+	try:
+		print("Get IPs...")
+		cursor.execute("SELECT ip FROM mg_proxmox_addon_ip")
+		ipRow = cursor.fetchall()
+		ipRow = [i[0] for i in ipRow]
+	except:
+		print("Failt to get IPs !", file=stderr)
+		exit(1)
+	else:
+		print("IPs get")
+
+	# Get MACs from DB
+	try:
+		print("Get MACs...")
+		cursor.execute("SELECT mac_address FROM mg_proxmox_addon_ip")
+		macRow = cursor.fetchall()
+		macRow = [i[0] for i in macRow]
+	except:
+		print("Fail to get MACs !", file=stderr)
+		exit(1)
+	else:
+		print("MACs get")
+
+	# Get IPs and MACs from routeur
+	try:
+		print("Get routeur IPs and MACs...")
+		routeur = run(["ssh", "-i", SSH_KEY, "-o", "StrictHostKeyChecking no", f"{SSH_USER}@{SSH_HOST}", "-p", SSH_PORT, "/ip arp print"], stdout=PIPE).stdout.decode()
+	except:
+		print("Failt to get reouteur IPs and MACs !", file=stderr)
+		exit(1)
+	else:
+		print("Routeur IPs and MACs get")
+
+	cursor.close()
+
+	# Get vlan give on the first arg
+	vlan = args[0]
+	if vlan != "null":
+		try:
+			vlan = int(vlan)
+		except:
+			print("Invalid vlan !", file=stderr)
+			exit(1)
+	del args[0]
+
+	# Get list of ip, mac and subnet_mask to add
+	out = []
+	for arg in args:
+		out+=addIPs(arg, ipRow, macRow)
+
+	# Insert the list
+	print(f"Start insert of {len(out)} IPs")
+	insertIPs(out, vlan, db, routeur)
+
+
+def addIPs(prefix: str, ipRow: [str], macRow: [str]) -> [(str, str, str, int)]:
+	"""
+	prefix: str
+		The IPs prefix
+	ipRow: list of str
+		A list of IPs in the DB
+	macRow: list of string
+		A list of MACs in the DB
+	return: List of tupple with IP, MAC, subnet_mask and cidr
+
+	This function generate a lits of IPs and MACs to insert
+	"""
+	out = []
+
+	# Check if prefix is valid
+	try:
+		print(f"Get IPs for {prefix}")
+		ips = IPv4Network(prefix)
+		subnet_mask = ips.netmask
+		cidr = ips.prefixlen
+	except:
+		print("Invalid IP prefix !", file=stderr)
+	else:
+		# For all ip in prefix
+		for ip in ips.hosts():
+			# Check DB
+			if str(ip) not in ipRow:
+				# Random until not in DB
+				mac = RandMac("00:00:00:00:00:00", True)
+				while mac in macRow:
+					mac = RandMac()
+				# Append to shared list to avoid colisions
+				ipRow.append(ip)
+				macRow.append(mac)
+
+				out.append((str(ip), str(mac), str(subnet_mask), int(cidr)))
+
+			else:
+				print(f"IP: {ip} already on DB !", file=stderr)
+		print(f"Got {len(out)} IPs")	
+	return out
+
+
+def insertIPs(insert: [(str, str, str, int)], vlan, db, routeur):
+	"""
+	insert: List of tupple with IP, MAC and subnet_mask
+		The list of IPs, MACs to insert
+	db: MySQL DB object
+		The DB to insert
+	routeur: str
+		A string content MACs and IPs content in routeur
+
+	This function insert given IPs and MACs to SB and routeur (if necessary)
+	"""
+	cursor = db.cursor()
+
+	# For every IP to insert
+	gateway = insert[0][0]
+	del insert[0]
+	print(f"Use gateway: {gateway}")
+	for i in insert:
+		# Try insert into DB
+		try:
+			cmd = f"INSERT INTO mg_proxmox_addon_ip (ip, type, mac_address, subnet_mask, cidr, gateway, tag) VALUES ('{i[0]}', 'IPv4', {i[1]}, '{i[2]}', {i[3]}, '{gateway}', {vlan})"
+			if debug:
+				print(cmd)
+			cursor.execute(cmd)
+		except Exception as e:
+			raise e
+			print(f"Fail to insert values !\nIP: {i[0]}, Type: IPv4, MAC: {i[1]}, subnet_mask: {i[2]}", file=stderr)
+		else:
+			# Optional log
+			#print(f"IP: {i[0]} of type IPv4 with MAC: {i[1]} on subnet_mask: {i[2]} add")
+
+			# If IP and MAC ar not in the routeur, add them
+			if ((i[0] not in routeur) or not (routeur[routeur.find(i[0]):5].replace(" ", ""))) and (i[1] not in routeur):
+				if vlan != "null":
+					interface = f"vlan{vlan}"
+				else:
+					interface = DEFAULT_INTERFACE
+
+				cmd = ["ssh", "-i", SSH_KEY, "-o", "StrictHostKeyChecking no", f"{SSH_USER}@{SSH_HOST}", "-p", SSH_PORT, f"/ip arp add address={i[0]} mac-address={i[1]} interface={interface}".replace("'", "")]
+				if debug:
+					print(cmd)
+				else:
+					run(cmd)
+			elif debug:
+				print(f"Already on the routeur !\nIP: {i[0]}, Type: IPv4, MAC: {i[1]}, subnet_mask: {i[2]}", file=stderr)
+
+	cursor.close()
+
+	# Commit to the DB
+	if debug:
+		print("Commit DB...")
+	else:
+		try:
+			print("Commit to DB...")
+			db.commit()
+		except:
+			print("Fail to commit !", file=stderr)
+			exit(1)
+		else:
+			print("Commited to DB")
+
+
+
+# Execution as a script handler
+if __name__ == "__main__":
+	# Avoid file name on args
+	if argv[0] == __file__:
+		del argv[0]
+
+	# Start main function
+	main(argv)