diff --git a/hosts/router/215-net-audio.nix b/hosts/router/215-net-audio.nix
new file mode 100644
index 0000000..1926107
--- /dev/null
+++ b/hosts/router/215-net-audio.nix
@@ -0,0 +1,60 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-audio" = {
+    id = 215;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-audio.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:215::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-audio.ipv4.addresses = [
+    { address = "10.42.215.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-audio {
+      AdvSendAdvert on;
+      MaxRtrAdvInterval 30;
+      prefix ::/64 {
+        AdvValidLifetime 60;
+        AdvPreferredLifetime 30;
+      };
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-audio" ];
+      };
+      subnet4 = [
+        {
+          id = 215;
+          subnet = "10.42.215.1/24";
+          pools = [
+            {
+              pool = "10.42.215.100 - 10.42.215.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.215.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+
+  clerie.forward-filter.interfaces.net-audio.rules = [
+    { incomingInterface = "net-ikt"; }
+  ];
+
+  clerie.uplink-selector.interfaces.net-audio.uplink = "uplink-b";
+}
diff --git a/hosts/router/216-net-trabantenst.nix b/hosts/router/216-net-trabantenst.nix
new file mode 100644
index 0000000..5d73aca
--- /dev/null
+++ b/hosts/router/216-net-trabantenst.nix
@@ -0,0 +1,60 @@
+{ config, pkgs, ...}:
+
+{
+  networking.vlans."net-trabantenst" = {
+    id = 216;
+    interface = "ens18";
+  };
+
+  networking.interfaces.net-trabantenst.ipv6.addresses = [
+    { address = "fe80::1"; prefixLength = 64; }
+    { address = "fd00:10:42:216::1"; prefixLength = 64; }
+  ];
+  networking.interfaces.net-trabantenst.ipv4.addresses = [
+    { address = "10.42.216.1"; prefixLength = 24; }
+  ];
+
+  services.radvd.config = ''
+    interface net-trabantenst {
+      AdvSendAdvert on;
+      MaxRtrAdvInterval 30;
+      prefix ::/64 {
+        AdvValidLifetime 60;
+        AdvPreferredLifetime 30;
+      };
+      RDNSS 2a01:4f8:1c0c:8221::8 {};
+      DNSSL bula22.de {};
+    };
+  '';
+
+  services.kea.dhcp4 = {
+    settings = {
+      interfaces-config = {
+        interfaces = [ "net-trabantenst" ];
+      };
+      subnet4 = [
+        {
+          id = 216;
+          subnet = "10.42.216.1/24";
+          pools = [
+            {
+              pool = "10.42.216.100 - 10.42.216.240";
+            }
+          ];
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.216.1";
+            }
+          ];
+        }
+      ];
+    };
+  };
+
+  clerie.forward-filter.interfaces.net-trabantenst.rules = [
+    { incomingInterface = "net-ikt"; }
+  ];
+
+  clerie.uplink-selector.interfaces.net-trabantenst.uplink = "uplink-b";
+}
diff --git a/hosts/router/configuration.nix b/hosts/router/configuration.nix
index 7ceabd7..5181ec8 100644
--- a/hosts/router/configuration.nix
+++ b/hosts/router/configuration.nix
@@ -29,6 +29,8 @@
       ./212-net-open-office.nix
       ./213-net-fuf.nix
       ./214-net-mav.nix
+      ./215-net-audio.nix
+      ./216-net-trabantenst.nix
     ];
 
   boot.loader.systemd-boot.enable = true;
diff --git a/hosts/router/prefix-delegation.nix b/hosts/router/prefix-delegation.nix
index a3c9798..c4055f4 100644
--- a/hosts/router/prefix-delegation.nix
+++ b/hosts/router/prefix-delegation.nix
@@ -28,7 +28,7 @@
         ia_pd 1/::/56 net-hospital/203/64 net-zoll/204/64 net-leitstelle/205/64 net-verwaltung/206/64
       interface ppp-uplink-b
         ipv6rs
-        ia_pd 1/::/56 net-technik-iot/151/64 net-technik-iot/152/64 net-ikt/201/64 net-technik/202/64 net-yolo/208/64 net-infojurte/209/64 net-internation/210/64 net-programmtre/211/64 net-open-office/212/64 net-fuf/213/64 net-mav/214/64
+        ia_pd 1/::/56 net-technik-iot/151/64 net-technik-iot/152/64 net-ikt/201/64 net-technik/202/64 net-yolo/208/64 net-infojurte/209/64 net-internation/210/64 net-programmtre/211/64 net-open-office/212/64 net-fuf/213/64 net-mav/214/64 net-audio/215/64 net-trabantenst/216/64
     '';
   };
 }