diff --git a/modules/services/networking/dhcpcd.nix b/modules/services/networking/dhcpcd.nix
new file mode 100644
index 00000000000..ce0c08dda3a
--- /dev/null
+++ b/modules/services/networking/dhcpcd.nix
@@ -0,0 +1,92 @@
+{ config, pkgs, ... }:
+
+with pkgs.lib;
+
+let
+
+  inherit (pkgs) dhcpcd;
+
+  # Don't start dhclient on explicitly configured interfaces or on
+  # interfaces that are part of a bridge.
+  ignoredInterfaces =
+    map (i: i.name) (filter (i: i ? ipAddress && i.ipAddress != "" ) config.networking.interfaces)
+    ++ concatLists (attrValues (mapAttrs (n: v: v.interfaces) config.networking.bridges));
+
+in
+
+{
+
+  ###### interface
+
+  options = {
+
+    networking.useDHCP = mkOption {
+      default = true;
+      merge = mergeEnableOption;
+      description = "
+        Whether to use DHCP to obtain an IP adress and other
+        configuration for all network interfaces that are not manually
+        configured.
+      ";
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = mkIf config.networking.useDHCP {
+
+    jobs.dhcpcd =
+      { startOn = "started network-interfaces";
+        stopOn = "stopping network-interfaces";
+
+        path = [ dhcpcd pkgs.nettools pkgs.openresolv ];
+
+        script =
+          ''
+            # Determine the interface on which to start dhcpcd.
+            interfaces=
+
+            for i in $(cd /sys/class/net && ls -d *); do
+                # Only run dhcpcd on interfaces of type ARPHRD_ETHER
+                # (1), i.e. Ethernet.  Ignore peth* devices; on Xen,
+                # they're renamed physical Ethernet cards used for
+                # bridging.  Likewise for vif* and tap* (Xen) and
+                # virbr* and vnet* (libvirt).
+                if [ "$(cat /sys/class/net/$i/type)" = 1 ]; then
+                    if ! for j in ${toString ignoredInterfaces}; do echo $j; done | grep -F -x -q "$i" &&
+                       ! echo "$i" | grep -x -q "peth.*\|vif.*\|tap.*\|virbr.*\|vnet.*";
+		    then
+                        echo "Running dhcpcd on $i"
+                        interfaces="$interfaces $i"
+                    fi
+                fi
+            done
+
+            if [ -z "$interfaces" ]; then
+                echo 'No interfaces on which to start dhcpcd!'
+                exit 1
+            fi
+
+            exec dhcpcd --nobackground --persistent $interfaces
+          '';
+      };
+
+    environment.systemPackages = [ dhcpcd ];
+
+    powerManagement.resumeCommands =
+      ''
+        ${config.system.build.upstart}/sbin/restart dhcpcd
+      '';
+
+    networking.interfaceMonitor.commands =
+      ''
+        if [ "$status" = up ]; then
+          ${config.system.build.upstart}/sbin/restart dhcpcd
+        fi
+      '';
+
+  };
+
+}