diff --git a/ip/ipv4.py b/ip/ipv4.py
index 47e5944..333e8c3 100644
--- a/ip/ipv4.py
+++ b/ip/ipv4.py
@@ -35,7 +35,6 @@ def ipv4(prefix: str, ipl: [IPv4Address] = None, macl: [str] = None) -> [(IPv4Ad
     # For all ip in prefix
     for ip in ips.hosts():
         mac = None
-        ip = str(ip)
         if ip not in ipl:
             ipl.append(ip)
             mac = str(RandMac("00:00:00:00:00:00", True))
diff --git a/router/insert_router.py b/router/insert_router.py
index 41f1360..0f8e60f 100644
--- a/router/insert_router.py
+++ b/router/insert_router.py
@@ -26,10 +26,13 @@ def insert_router_ipv4(insert: [(IPv4Address, str, IPv4Address, int)], interface
 
     ipl = get_router_ipv4(host, port, user, key)
 
+    print("Start insert on router")
     for i in insert:
-        if ((i[0] not in ipl) or not (ipl[ipl.find(i[0]):5].replace(" ", ""))) and (i[1] not in ipl):
-            cmd = ["ssh", "-i", key, "-o", "StrictHostKeyChecking no", f"{user}@{host}", "-p", str(port), f"/ip arp add address={i[0]} mac-address={i[1]} interface={interface}".replace("'", "")]
-            if not debug:
-                run(cmd)
-            else:
-                print(cmd)
+        if i[1]:
+            if ((i[0] not in ipl) or not (ipl[ipl.find(i[0]):5].replace(" ", ""))) and (i[1] not in ipl):
+                cmd = ["ssh", "-i", key, "-o", "StrictHostKeyChecking no", f"{user}@{host}", "-p", str(port), f"/ip arp add address={i[0]} mac-address={i[1]} interface={interface}".replace("'", "")]
+                if not debug:
+                    run(cmd)
+                else:
+                    print(cmd)
+    print("Insert on router done")
diff --git a/whmcs/insert_whmcs.py b/whmcs/insert_whmcs.py
index 1cbca72..9da7c79 100644
--- a/whmcs/insert_whmcs.py
+++ b/whmcs/insert_whmcs.py
@@ -31,13 +31,14 @@ def insert_whmcs_ipv4(insert: [(IPv4Address, str, IPv4Address, int)], interface:
 
     # For every IP to insert
     for i in insert:
-        cmd = f"INSERT INTO mg_proxmox_addon_ip (ip, type, mac_address, subnet_mask, cidr, gateway, tag) " \
-                    f"VALUES ('{i[0]}', 'IPv4', {i[1]}, '{i[2]}', {i[3]}, '{gateway}', {vlan})"
-        try:
-            cursor.execute(cmd)
-        except Exception as e:
-            print(cmd, file=stderr)
-            raise e
+        if i[1]:
+            cmd = f"INSERT INTO mg_proxmox_addon_ip (ip, type, mac_address, subnet_mask, cidr, gateway, tag) " \
+                        f"VALUES ('{i[0]}', 'IPv4', {i[1]}, '{i[2]}', {i[3]}, '{gateway}', {vlan})"
+            try:
+                cursor.execute(cmd)
+            except Exception as e:
+                print(cmd, file=stderr)
+                raise e
 
     cursor.close()