diff --git a/playground/mikrotik/subnet_split.py b/playground/mikrotik/subnet_split.py
new file mode 100644
index 0000000..d34ed7f
--- /dev/null
+++ b/playground/mikrotik/subnet_split.py
@@ -0,0 +1,57 @@
+from netaddr import IPNetwork
+from utils_v2.string import json
+
+src_network = IPNetwork("100.64.0.0/24")
+src_subnets = list(src_network.subnet(28))
+print("SUBNET:", json.to_string(src_subnets, default=str))
+print("COUNT:", len(src_subnets))
+
+
+dst_network = IPNetwork("100.127.0.0/28")
+dst_subnets = list(dst_network.subnet(32))
+print("SUBNET:", json.to_string(dst_subnets, default=str))
+print("COUNT:", len(dst_subnets))
+
+
+final_json = [
+    {
+        "action": "src-nat",
+        "chain": "srcnat",
+        "disabled": "false",
+        "src-address": str(i[0]),
+        "to-addresses": str(i[1])
+    } for i in zip(src_subnets, dst_subnets)
+]
+print("SUBNET:", json.to_string(final_json, default=str))
+
+import asyncio
+import httpx
+
+http_client = httpx.AsyncClient(
+    limits = httpx.Limits(
+        max_connections = 100,  # ............ Maximum number of connections allowed in the pool.
+        max_keepalive_connections = 50,  # ... Maximum number of connections that can be kept alive.
+    ),
+    timeout = httpx.Timeout(
+        pool = 120.0,  # .... Time to wait for a free connection from the pool.
+        connect = 2.5,  # ... Time to wait for establishing a connection to the server.
+        write = 10.0,  # .... Time to wait for sending data.
+        read = 9.9  # ....... Time to wait for receiving data.
+    )
+)
+
+
+async def configure_nat():
+
+    tasks = [
+        http_client.put(
+            url = r"http://102.210.175.251/rest/ip/firewall/nat",
+            auth = httpx.BasicAuth(username = "easyfi", password = "easyfi"),
+            json = i
+        ) for i in final_json
+    ]
+    print("Async NAT")
+    results = await asyncio.gather(*tasks)
+    print(results)
+
+# asyncio.run(configure_nat())
diff --git a/readme/Mikrotik - EasyFi.md b/readme/Mikrotik - EasyFi.md
index e7694b2..f8999ed 100644
--- a/readme/Mikrotik - EasyFi.md	
+++ b/readme/Mikrotik - EasyFi.md	
@@ -172,7 +172,7 @@ Hint: Walled-Garden IPs
     "chain": "srcnat",
     "disabled": "false",
     "src-address": "100.65.0.16/28",
-    "to-addresses": "111.222.111.111"
+    "to-addresses": "111.222.111.111" // Ask the /28 public IP
 }
 ```