diff --git a/renderer/templates/interface/dhcp.uc b/renderer/templates/interface/dhcp.uc
index 788a657..4be4ecd 100644
--- a/renderer/templates/interface/dhcp.uc
+++ b/renderer/templates/interface/dhcp.uc
@@ -1,7 +1,16 @@
 {% let name = ethernet.calculate_name(interface) %}
 {% let dhcp = ipv4.dhcp || { ignore: 1 } %}
 {% let dhcpv6 = ipv6.dhcpv6 || {} %}
-
+{% function use_dns() {
+	let ret = '';
+	if (type(dhcp.use_dns) == 'array') {
+		for (let k, v in dhcp.use_dns)
+			ret += ',' + v;
+	} else {
+		ret += ',' + dhcp.use_dns;
+	}
+	return ret;
+} %}
 set dhcp.{{ name }}=dhcp
 set dhcp.{{ name }}.interface={{ s(ethernet.calculate_ipv4_name(interface)) }}
 set dhcp.{{ name }}.start={{ dhcp.lease_first }}
@@ -9,7 +18,7 @@ set dhcp.{{ name }}.limit={{ dhcp.lease_count }}
 set dhcp.{{ name }}.leasetime={{ dhcp.lease_time }}
 set dhcp.{{ name }}.ignore={{ b(dhcp.ignore) }}
 {% if (dhcp.use_dns): %}
-add_list dhcp.{{ name }}.dhcp_option='6,{{ dhcp.use_dns }}'
+add_list dhcp.{{ name }}.dhcp_option='6{{ use_dns() }}'
 {% endif %}
 {% if (interface.role != 'upstream'): %}
 {%  if (dhcpv6.mode == 'hybrid'): %}
diff --git a/schema/interface.ipv4.dhcp.yml b/schema/interface.ipv4.dhcp.yml
index 0ac46c1..844b951 100644
--- a/schema/interface.ipv4.dhcp.yml
+++ b/schema/interface.ipv4.dhcp.yml
@@ -23,5 +23,10 @@ properties:
   use-dns:
     description:
      The DNS server sent to clients as DHCP option 6.
-    type: string
-    format: uc-ip
+    anyOf:
+      - type: string
+        format: ipv4
+      - type: array
+        items:
+          type: string
+          format: ipv4
diff --git a/schemareader.uc b/schemareader.uc
index 8520d34..9b481c8 100644
--- a/schemareader.uc
+++ b/schemareader.uc
@@ -1472,14 +1472,82 @@ function instantiateInterfaceIpv4Dhcp(location, value, errors) {
 		}
 
 		function parseUseDns(location, value, errors) {
-			if (type(value) == "string") {
-				if (!matchUcIp(value))
-					push(errors, [ location, "must be a valid IPv4 or IPv6 address" ]);
+			function parseVariant0(location, value, errors) {
+				if (type(value) == "string") {
+					if (!matchIpv4(value))
+						push(errors, [ location, "must be a valid IPv4 address" ]);
 
+				}
+
+				if (type(value) != "string")
+					push(errors, [ location, "must be of type string" ]);
+
+				return value;
 			}
 
-			if (type(value) != "string")
-				push(errors, [ location, "must be of type string" ]);
+			function parseVariant1(location, value, errors) {
+				if (type(value) == "array") {
+					function parseItem(location, value, errors) {
+						if (type(value) == "string") {
+							if (!matchIpv4(value))
+								push(errors, [ location, "must be a valid IPv4 address" ]);
+
+						}
+
+						if (type(value) != "string")
+							push(errors, [ location, "must be of type string" ]);
+
+						return value;
+					}
+
+					return map(value, (item, i) => parseItem(location + "/" + i, item, errors));
+				}
+
+				if (type(value) != "array")
+					push(errors, [ location, "must be of type array" ]);
+
+				return value;
+			}
+
+			let success = 0, tryval, tryerr, vvalue = null, verrors = [];
+
+			tryerr = [];
+			tryval = parseVariant0(location, value, tryerr);
+			if (!length(tryerr)) {
+				if (type(vvalue) == "object" && type(tryval) == "object")
+					vvalue = { ...vvalue, ...tryval };
+				else
+					vvalue = tryval;
+
+				success++;
+			}
+			else {
+				push(verrors, join(" and\n", map(tryerr, err => "\t - " + err[1])));
+			}
+
+			tryerr = [];
+			tryval = parseVariant1(location, value, tryerr);
+			if (!length(tryerr)) {
+				if (type(vvalue) == "object" && type(tryval) == "object")
+					vvalue = { ...vvalue, ...tryval };
+				else
+					vvalue = tryval;
+
+				success++;
+			}
+			else {
+				push(verrors, join(" and\n", map(tryerr, err => "\t - " + err[1])));
+			}
+
+			if (success == 0) {
+				if (length(verrors))
+					push(errors, [ location, "must match at least one of the following constraints:\n" + join("\n- or -\n", verrors) ]);
+				else
+					push(errors, [ location, "must match only one variant" ]);
+				return null;
+			}
+
+			value = vvalue;
 
 			return value;
 		}
diff --git a/ucentral.schema.full.json b/ucentral.schema.full.json
index aaf78d0..310b942 100644
--- a/ucentral.schema.full.json
+++ b/ucentral.schema.full.json
@@ -1042,8 +1042,19 @@
                                     },
                                     "use-dns": {
                                         "description": "The DNS server sent to clients as DHCP option 6.",
-                                        "type": "string",
-                                        "format": "uc-ip"
+                                        "anyOf": [
+                                            {
+                                                "type": "string",
+                                                "format": "ipv4"
+                                            },
+                                            {
+                                                "type": "array",
+                                                "items": {
+                                                    "type": "string",
+                                                    "format": "ipv4"
+                                                }
+                                            }
+                                        ]
                                     }
                                 }
                             },
diff --git a/ucentral.schema.json b/ucentral.schema.json
index a9a4d2c..98e97a2 100644
--- a/ucentral.schema.json
+++ b/ucentral.schema.json
@@ -671,8 +671,19 @@
                     "default": "6h"
                 },
                 "use-dns": {
-                    "type": "string",
-                    "format": "uc-ip"
+                    "anyOf": [
+                        {
+                            "type": "string",
+                            "format": "ipv4"
+                        },
+                        {
+                            "type": "array",
+                            "items": {
+                                "type": "string",
+                                "format": "ipv4"
+                            }
+                        }
+                    ]
                 }
             }
         },
diff --git a/ucentral.schema.pretty.json b/ucentral.schema.pretty.json
index 3d51f22..463c5b5 100644
--- a/ucentral.schema.pretty.json
+++ b/ucentral.schema.pretty.json
@@ -753,8 +753,19 @@
                 },
                 "use-dns": {
                     "description": "The DNS server sent to clients as DHCP option 6.",
-                    "type": "string",
-                    "format": "uc-ip"
+                    "anyOf": [
+                        {
+                            "type": "string",
+                            "format": "ipv4"
+                        },
+                        {
+                            "type": "array",
+                            "items": {
+                                "type": "string",
+                                "format": "ipv4"
+                            }
+                        }
+                    ]
                 }
             }
         },