diff --git a/requirements.txt b/requirements.txt
index e976618..b92ec1d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-tkinter
-scapy
\ No newline at end of file
+scapy
+psutil
\ No newline at end of file
diff --git a/src/types/__init__.py b/src/custom_types/__init__.py
similarity index 100%
rename from src/types/__init__.py
rename to src/custom_types/__init__.py
diff --git a/src/utils.py b/src/utils.py
index 86363ea..91e7192 100644
--- a/src/utils.py
+++ b/src/utils.py
@@ -26,4 +26,15 @@ def validate_subnet_mask(mask):
         '192.0.0.0', '128.0.0.0', '0.0.0.0'
     ]
     if mask not in valid_masks:
-        raise ValueError("Invalid subnet mask")
\ No newline at end of file
+        raise ValueError("Invalid subnet mask")
+
+import socket
+import psutil
+
+def get_network_interfaces():
+    interfaces = []
+    for iface, addrs in psutil.net_if_addrs().items():
+        for addr in addrs:
+            if addr.family == socket.AF_INET:
+                interfaces.append(iface)
+    return interfaces
\ No newline at end of file