diff --git a/hosts/carbon/configuration.nix b/hosts/carbon/configuration.nix
index a993d70..34efa5a 100644
--- a/hosts/carbon/configuration.nix
+++ b/hosts/carbon/configuration.nix
@@ -7,6 +7,7 @@
       ../../configuration/router
 
       ./dns.nix
+      ./mdns.nix
       ./net-dsl.nix
       ./net-gastnetz.nix
       ./net-heimnetz.nix
diff --git a/hosts/carbon/mdns.nix b/hosts/carbon/mdns.nix
new file mode 100644
index 0000000..35a422b
--- /dev/null
+++ b/hosts/carbon/mdns.nix
@@ -0,0 +1,17 @@
+{ pkgs, ... }:
+
+{
+
+  services.avahi = {
+    enable = true;
+    nssmdns4 = true;
+
+    allowInterfaces = [
+      "net-heimnetz"
+      "net-iot"
+    ];
+
+    reflector = true;
+  };
+
+}