diff --git a/hosts/router/101-net-uplink-a.nix b/hosts/router/101-net-uplink-a.nix
new file mode 100644
index 0000000..506d79c
--- /dev/null
+++ b/hosts/router/101-net-uplink-a.nix
@@ -0,0 +1,8 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-uplink-a" = {
+    id = 101;
+    interface = "ens18";
+  };
+}
diff --git a/hosts/router/102-net-uplink-b.nix b/hosts/router/102-net-uplink-b.nix
new file mode 100644
index 0000000..be22a3b
--- /dev/null
+++ b/hosts/router/102-net-uplink-b.nix
@@ -0,0 +1,8 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-uplink-b" = {
+    id = 102;
+    interface = "ens18";
+  };
+}
diff --git a/hosts/router/151-net-technik-iot.nix b/hosts/router/151-net-technik-iot.nix
new file mode 100644
index 0000000..2f94885
--- /dev/null
+++ b/hosts/router/151-net-technik-iot.nix
@@ -0,0 +1,37 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-technik-iot" = {
+    id = 151;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-technik-iot.ipv4.addresses = [
+    { address = "10.42.151.1"; prefixLength = 24; }
+  ];
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-technik-iot" ];
+      };
+      subnet4 = [
+        {
+          id = 151;
+          subnet = "10.42.151.1/24";
+          pools = [
+            {
+              pool = "10.42.151.100 - 10.42.151.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.151.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/201-net-ikt.nix b/hosts/router/201-net-ikt.nix
new file mode 100644
index 0000000..919861c
--- /dev/null
+++ b/hosts/router/201-net-ikt.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-ikt" = {
+    id = 201;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-ikt.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:201::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-ikt.ipv4.addresses = [
+    { address = "10.42.201.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-ikt {
+      AdvSendAdvert on;
+      prefix fd00:10:42:201::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-ikt" ];
+      };
+      subnet4 = [
+        {
+          id = 201;
+          subnet = "10.42.201.1/24";
+          pools = [
+            {
+              pool = "10.42.201.100 - 10.42.201.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.201.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/202-net-technik.nix b/hosts/router/202-net-technik.nix
new file mode 100644
index 0000000..82f4b6f
--- /dev/null
+++ b/hosts/router/202-net-technik.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-technik" = {
+    id = 202;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-technik.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:202::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-technik.ipv4.addresses = [
+    { address = "10.42.202.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-technik {
+      AdvSendAdvert on;
+      prefix fd00:10:42:202::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-technik" ];
+      };
+      subnet4 = [
+        {
+          id = 202;
+          subnet = "10.42.202.1/24";
+          pools = [
+            {
+              pool = "10.42.202.100 - 10.42.202.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.202.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/203-net-hospital.nix b/hosts/router/203-net-hospital.nix
new file mode 100644
index 0000000..4d5b46f
--- /dev/null
+++ b/hosts/router/203-net-hospital.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-hospital" = {
+    id = 203;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-hospital.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:203::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-hospital.ipv4.addresses = [
+    { address = "10.42.203.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-hospital {
+      AdvSendAdvert on;
+      prefix fd00:10:42:203::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-hospital" ];
+      };
+      subnet4 = [
+        {
+          id = 203;
+          subnet = "10.42.203.1/24";
+          pools = [
+            {
+              pool = "10.42.203.100 - 10.42.203.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.203.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/204-net-zoll.nix b/hosts/router/204-net-zoll.nix
new file mode 100644
index 0000000..140aa72
--- /dev/null
+++ b/hosts/router/204-net-zoll.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-zoll" = {
+    id = 204;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-zoll.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:204::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-zoll.ipv4.addresses = [
+    { address = "10.42.204.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-zoll {
+      AdvSendAdvert on;
+      prefix fd00:10:42:204::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-zoll" ];
+      };
+      subnet4 = [
+        {
+          id = 204;
+          subnet = "10.42.204.1/24";
+          pools = [
+            {
+              pool = "10.42.204.100 - 10.42.204.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.204.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/205-net-leitstelle.nix b/hosts/router/205-net-leitstelle.nix
new file mode 100644
index 0000000..315a042
--- /dev/null
+++ b/hosts/router/205-net-leitstelle.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-leitstelle" = {
+    id = 205;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-leitstelle.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:205::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-leitstelle.ipv4.addresses = [
+    { address = "10.42.205.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-leitstelle {
+      AdvSendAdvert on;
+      prefix fd00:10:42:205::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-leitstelle" ];
+      };
+      subnet4 = [
+        {
+          id = 205;
+          subnet = "10.42.205.1/24";
+          pools = [
+            {
+              pool = "10.42.205.100 - 10.42.205.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.205.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/206-net-verwaltung.nix b/hosts/router/206-net-verwaltung.nix
new file mode 100644
index 0000000..c5e0752
--- /dev/null
+++ b/hosts/router/206-net-verwaltung.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-verwaltung" = {
+    id = 206;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-verwaltung.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:206::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-verwaltung.ipv4.addresses = [
+    { address = "10.42.206.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-verwaltung {
+      AdvSendAdvert on;
+      prefix fd00:10:42:206::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-verwaltung" ];
+      };
+      subnet4 = [
+        {
+          id = 206;
+          subnet = "10.42.206.1/24";
+          pools = [
+            {
+              pool = "10.42.206.100 - 10.42.206.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.206.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/208-net-yolo.nix b/hosts/router/208-net-yolo.nix
new file mode 100644
index 0000000..3b12f92
--- /dev/null
+++ b/hosts/router/208-net-yolo.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-yolo" = {
+    id = 208;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-yolo.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:208::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-yolo.ipv4.addresses = [
+    { address = "10.42.208.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-yolo {
+      AdvSendAdvert on;
+      prefix fd00:10:42:208::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-yolo" ];
+      };
+      subnet4 = [
+        {
+          id = 208;
+          subnet = "10.42.208.1/24";
+          pools = [
+            {
+              pool = "10.42.208.100 - 10.42.208.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.208.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/209-net-infojurte.nix b/hosts/router/209-net-infojurte.nix
new file mode 100644
index 0000000..8af232e
--- /dev/null
+++ b/hosts/router/209-net-infojurte.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-infojurte" = {
+    id = 209;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-infojurte.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:209::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-infojurte.ipv4.addresses = [
+    { address = "10.42.209.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-infojurte {
+      AdvSendAdvert on;
+      prefix fd00:10:42:209::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-infojurte" ];
+      };
+      subnet4 = [
+        {
+          id = 209;
+          subnet = "10.42.209.1/24";
+          pools = [
+            {
+              pool = "10.42.209.100 - 10.42.209.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.209.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/210-net-internation.nix b/hosts/router/210-net-internation.nix
new file mode 100644
index 0000000..9bf1441
--- /dev/null
+++ b/hosts/router/210-net-internation.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-internation" = {
+    id = 210;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-internation.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:210::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-internation.ipv4.addresses = [
+    { address = "10.42.210.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-internation {
+      AdvSendAdvert on;
+      prefix fd00:10:42:210::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-internation" ];
+      };
+      subnet4 = [
+        {
+          id = 210;
+          subnet = "10.42.210.1/24";
+          pools = [
+            {
+              pool = "10.42.210.100 - 10.42.210.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.210.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/211-net-programmtre.nix b/hosts/router/211-net-programmtre.nix
new file mode 100644
index 0000000..9d5425e
--- /dev/null
+++ b/hosts/router/211-net-programmtre.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-programmtre" = {
+    id = 211;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-programmtre.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:211::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-programmtre.ipv4.addresses = [
+    { address = "10.42.211.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-programmtre {
+      AdvSendAdvert on;
+      prefix fd00:10:42:211::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-programmtre" ];
+      };
+      subnet4 = [
+        {
+          id = 211;
+          subnet = "10.42.211.1/24";
+          pools = [
+            {
+              pool = "10.42.211.100 - 10.42.211.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.211.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/212-net-open-office.nix b/hosts/router/212-net-open-office.nix
new file mode 100644
index 0000000..8af57b1
--- /dev/null
+++ b/hosts/router/212-net-open-office.nix
@@ -0,0 +1,50 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-open-office" = {
+    id = 212;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-open-office.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:212::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-open-office.ipv4.addresses = [
+    { address = "10.42.212.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-open-office {
+      AdvSendAdvert on;
+      prefix fd00:10:42:212::/64 {};
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-open-office" ];
+      };
+      subnet4 = [
+        {
+          id = 212;
+          subnet = "10.42.212.1/24";
+          pools = [
+            {
+              pool = "10.42.212.100 - 10.42.212.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.212.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}
diff --git a/hosts/router/42-net-management.nix b/hosts/router/42-net-management.nix
new file mode 100644
index 0000000..8a32731
--- /dev/null
+++ b/hosts/router/42-net-management.nix
@@ -0,0 +1,12 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-management" = {
+    id = 42;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-management.ipv4.addresses = [
+    { address = "10.42.42.1"; prefixLength = 24; }
+  ];
+}