feat: address maintainer feedback for Windows support

Author: Satvik-Singh192

README.md

@@ -68,6 +68,36 @@ This firewall uses a **threshold-based detection approach**:
    python3 test_attacks.py 127.0.0.1
    ```
 
+## 🏃 Running on Windows
+
+This program uses `netsh` to manage firewall rules, which requires administrative privileges.
+
+1.  **Open as Administrator:** Right-click on **Command Prompt** or **Windows PowerShell** and select **"Run as administrator"**.
+
+2.  **Navigate to Folder:** Change to the project directory:
+    ```sh
+    cd path\to\simple_firewall
+    ```
+
+3.  **(Optional) Activate Virtual Environment:** If you use a virtual environment:
+    ```sh
+    .\venv\Scripts\activate
+    ```
+
+4.  **Install Requirements:** Install the main requirements and the Windows-specific ones:
+    ```sh
+    pip install -r requirements.txt
+    pip install -r requirements-windows.txt
+    ```
+
+5.  **Run the Program:**
+    ```sh
+    python main.py -i "Your Interface Name"
+    
+    # Example:
+    python main.py -i "Ethernet"
+    ```
+    
 ## Usage
 
 ### Basic Commands

requirements-windows.txt

@@ -0,0 +1,8 @@
+# This file lists Python packages required *only* for running
+# this project on Windows, which are not in the main requirements.txt.
+
+# psutil (used for Windows-specific interface detection) is
+# already listed in the main requirements.txt as a core
+# dependency for all platforms.
+
+# Future Windows-only dependencies can be added here.

src/network/interface.py

@@ -34,7 +34,7 @@ def _get_default_interface(self) -> str:
                 for n in names:
                     if 'wi' in n.lower() or 'wifi' in n.lower() or 'wi-fi' in n.lower():
                         return n
-                return names[0] if names else ''
+                return names[0] if names else 'Ethernet'
             else:
                 interfaces = netifaces.interfaces()