diff --git a/client/lib/engine/bin/NetLib.py b/client/lib/engine/bin/NetLib.py
index 2bdbc08..32e9e5e 100755
--- a/client/lib/engine/bin/NetLib.py
+++ b/client/lib/engine/bin/NetLib.py
@@ -196,26 +196,44 @@ def ogGetIpAddress():
 #@return  str_ether - Dirección Ethernet
 #*/ ##
 def ogGetMacAddress():
-    MAC = ""
+    try:
+        if "DEVICE" in os.environ:
+            device = os.environ["DEVICE"]
+            result = subprocess.run(
+                ["ip", "-o", "link", "show", "up", "dev", device],
+                capture_output=True,
+                text=True,
+                check=True
+            ).stdout
+        else:
+            result = subprocess.run(
+                ["ip", "-o", "link", "show", "up"],
+                capture_output=True,
+                text=True,
+                check=True
+            ).stdout
 
-    if len(sys.argv) >= 2 and sys.argv[1] == "help":
-        SystemLib.ogHelp("ogGetMacAddress", "ogGetMacAddress", "ogGetMacAddress  =>  00:11:22:33:44:55")
-        return
+        mac_addresses = []
+        for line in result.splitlines():
+            if "link/ether" in line:
+                parts = line.split()
+                for i, part in enumerate(parts):
+                    if part == "link/ether":
+                        mac_addresses.append(parts[i + 1].upper())
 
-    # Obtener direcciones Ethernet.
-    if "DEVICE" in os.environ:
-        MAC = subprocess.run(["ip", "-o", "link", "show", "up", "dev", os.environ["DEVICE"]], stdout=subprocess.PIPE, stderr=subprocess.DEVNULL).stdout.decode().split()
-        MAC = [addr.upper() for addr in MAC if "ether" in addr]
-    else:
-        MAC = subprocess.run(["ip", "-o", "link", "show", "up"], stdout=subprocess.PIPE, stderr=subprocess.DEVNULL).stdout.decode().split()
-        MAC = [addr.upper() for addr in MAC if "ether" in addr and "lo" not in addr]
-
-    # Mostrar solo la primera.
-    if MAC:
-        print(MAC[0])
-
-    return 0
+        if mac_addresses:
+            print(mac_addresses[0])
+            return mac_addresses[0]
+        else:
+            print("No active mac address found")
+            return None
 
+    except subprocess.CalledProcessError as e:
+        print(f"Error executing ip command: {e.stderr}")
+        return None
+    except Exception as e:
+        print(f"Unexpected error: {str(e)}")
+        return None
 
 #/**
 #         ogGetNetInterface