Debug build

snap/snapcraft.yaml

@@ -42,4 +42,4 @@ apps:
   arp-scanner:
     command: ARP-Scanner
     plugs:
-      - network-control
+      - network-observe

src/ARP-Scanner/Program.cs

@@ -49,8 +49,9 @@ internal static class Program
             {
                 mac = await Arp.LookupAsync(ipAddress);
             }
-            catch
+            catch (Exception ex)
             {
+                ConsoleExt.WriteLine($"Failed to lookup MAC address for {ipAddress}: {ex.Message}", ConsoleColor.Red);
                 fail = true;
             }