diff --git a/hosts/router/configuration.nix b/hosts/router/configuration.nix
index 2df2629..df81895 100644
--- a/hosts/router/configuration.nix
+++ b/hosts/router/configuration.nix
@@ -5,6 +5,21 @@
     [
       ./hardware-configuration.nix
 
+      ./42-net-management.nix
+      ./101-net-uplink-a.nix
+      ./102-net-uplink-b.nix
+      ./151-net-technik-iot.nix
+      ./201-net-ikt.nix
+      ./202-net-technik.nix
+      ./203-net-hospital.nix
+      ./204-net-zoll.nix
+      ./205-net-leitstelle.nix
+      ./206-net-verwaltung.nix
+      ./208-net-yolo.nix
+      ./209-net-infojurte.nix
+      ./210-net-internation.nix
+      ./211-net-programmtre.nix
+      ./212-net-open-office.nix
       ./net-services.nix
     ];
 
@@ -20,6 +35,33 @@
 
   networking.nameservers = [ "10.42.10.1" "2a01:4f8:1c0c:8221::1" ];
 
+  services.radvd.enable = true;
+
+  services.kea.dhcp4 = {
+    enable = true;
+    settings = {
+      interfaces-config = {
+        interfaces = [];
+      };
+      lease-database = {
+        name = "/var/lib/kea/dhcp4.leases";
+        persist = true;
+        type = "memfile";
+      };
+      option-data = [
+        {
+          name = "domain-name-servers";
+          data = "10.42.10.8";
+        }
+        {
+          name = "domain-name";
+          data = "bula22.de";
+        }
+      ];
+      subnet4 = [];
+    };
+  };
+
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave