diff --git a/nix/os/containers/mailserver.nix b/nix/os/containers/mailserver.nix
index c821bf4..b906d8b 100644
--- a/nix/os/containers/mailserver.nix
+++ b/nix/os/containers/mailserver.nix
@@ -1,6 +1,5 @@
 {
   specialArgs,
-  hostBridge,
   hostAddress,
   localAddress,
   imapsPort ? 993,
@@ -228,5 +227,5 @@
     }
   ];
 
-  inherit hostBridge hostAddress localAddress;
+  inherit hostAddress localAddress;
 }
diff --git a/nix/os/containers/syncthing.nix b/nix/os/containers/syncthing.nix
index 8c0ba82..12421c7 100644
--- a/nix/os/containers/syncthing.nix
+++ b/nix/os/containers/syncthing.nix
@@ -1,6 +1,5 @@
 {
   specialArgs,
-  hostBridge,
   hostAddress,
   localAddress,
   syncthingPort ? 22000,
@@ -57,5 +56,5 @@
     }
   ];
 
-  inherit hostBridge hostAddress localAddress;
+  inherit hostAddress localAddress;
 }
diff --git a/nix/os/containers/webserver.nix b/nix/os/containers/webserver.nix
index 0611f60..c2c166c 100644
--- a/nix/os/containers/webserver.nix
+++ b/nix/os/containers/webserver.nix
@@ -1,6 +1,5 @@
 {
   specialArgs,
-  hostBridge,
   hostAddress,
   localAddress,
   httpPort,
@@ -331,5 +330,5 @@ in {
     }
   ];
 
-  inherit hostBridge hostAddress localAddress;
+  inherit hostAddress localAddress;
 }
diff --git a/nix/os/devices/router0-dmz0/configuration.nix b/nix/os/devices/router0-dmz0/configuration.nix
index 33a6ed3..4d82178 100644
--- a/nix/os/devices/router0-dmz0/configuration.nix
+++ b/nix/os/devices/router0-dmz0/configuration.nix
@@ -87,16 +87,13 @@
     then bridgeInterfaceName
     else "${bridgeInterfaceName}.${toString vlanid}";
 
-  dmzExposedHost = "sj-srv1";
-  dmzExposedHostDomain = "dmz.internal";
-  dmzExposedHostFQDN = "${dmzExposedHost}.${dmzExposedHostDomain}";
+  dmzExposedHost = "sj-srv1.dmz.internal";
   dmzExposedHostIpv4 = mkVlanIpv4HostAddr {
     vlanid = vlansByName.dmz.id;
     host = 99;
     cidr = false;
   };
-
-  dmzExposedHostMACaddr = repoFlake.nixosConfigurations.${dmzExposedHost}.config.systemd.network.netdevs."10-dmz0".netdevConfig.MACAddress;
+  # "sj-srv1.dmz.internal";
 in {
   imports = [
     nixos-sbc.nixosModules.default
@@ -1129,11 +1126,8 @@ in {
         )
         vlanRangeWith0;
 
-      dhcp-host = builtins.concatStringsSep "," [
-        dmzExposedHostMACaddr
-        dmzExposedHostIpv4
-        dmzExposedHostFQDN
-      ];
+      # TODO: double-check that this works
+      dhcp-host = "1c:69:7a:07:08:5f,${dmzExposedHostIpv4},${dmzExposedHost}";
 
       expand-hosts = true;
 
diff --git a/nix/os/devices/sj-srv1/system.nix b/nix/os/devices/sj-srv1/system.nix
index a6498a4..bd23a9e 100644
--- a/nix/os/devices/sj-srv1/system.nix
+++ b/nix/os/devices/sj-srv1/system.nix
@@ -25,64 +25,15 @@
   networking.usePredictableInterfaceNames = false;
 
   networking.useNetworkd = true;
-  networking.useDHCP = false;
+  networking.useDHCP = true;
 
   networking.nat = {
     enable = true;
-    internalInterfaces = ["br0"];
-    externalInterface = "dmz0";
+    internalInterfaces = ["ve-*"];
+    externalInterface = "eth0";
   };
-
-  networking.bridges = {
-    br0 = {
-      interfaces = [];
-    };
-  };
-  networking.interfaces = {
-    br0 = {
-      ipv4.addresses = [
-        {
-          address = "192.168.101.1";
-          prefixLength = 24;
-        }
-      ];
-    };
-  };
-
-  systemd.network.netdevs."10-dmz0" = {
-    enable = true;
-    netdevConfig = {
-      Name = "dmz0";
-      Kind = "macvlan";
-      MACAddress = "1c:69:7a:07:08:6f";
-    };
-
-    macvlanConfig = {
-      Mode = "bridge";
-    };
-  };
-
-  systemd.network.networks."20-eth0" = {
-    enable = true;
-    matchConfig.Name = "eth0";
-
-    # TODO: i'm not sure if and if so why this is required
-    macvlan = [
-      "dmz0"
-    ];
-
-    DHCP = "no";
-  };
-
-  systemd.network.networks."30-dmz0" = {
-    enable = true;
-    matchConfig.Name = "dmz0";
-    DHCP = "yes";
-  };
-
   boot.kernel.sysctl = {
     "net.ipv4.ip_forward" = 1;
-    "net.ipv6.ip_forward" = 1;
   };
 
   # virtualization
@@ -133,15 +84,14 @@
 
       autoStart = true;
 
-      hostBridge = "br0";
-      hostAddress = "192.168.101.1";
-      localAddress = "192.168.101.10/24";
+      hostAddress = "192.168.100.10";
+      localAddress = "192.168.100.11";
 
       imapsPort = 993;
       sievePort = 4190;
     };
 
-    webserver =
+    websrv0 =
       import ../../containers/webserver.nix
       {
         specialArgs = {
@@ -150,9 +100,8 @@
 
         autoStart = true;
 
-        hostBridge = "br0";
-        hostAddress = "192.168.101.1";
-        localAddress = "192.168.101.11/24";
+        hostAddress = "192.168.100.12";
+        localAddress = "192.168.100.13";
 
         httpPort = 80;
         httpsPort = 443;
@@ -165,9 +114,8 @@
       };
       autoStart = true;
 
-      hostBridge = "br0";
-      hostAddress = "192.168.101.1";
-      localAddress = "192.168.101.12/24";
+      hostAddress = "192.168.100.14";
+      localAddress = "192.168.100.15";
 
       syncthingPort = 22000;
     };