diff --git a/inventory_provider/config.py b/inventory_provider/config.py
index 59953f2eb9fb43b3f0b7b1b5b09e36b0be0e9baa..9000efbddd2178b9b57b47948b3f4869aa0c702d 100644
--- a/inventory_provider/config.py
+++ b/inventory_provider/config.py
@@ -6,6 +6,11 @@ CONFIG_SCHEMA = {
     "$schema": "http://json-schema.org/draft-07/schema#",
 
     "definitions": {
+        "timeout": {
+            "type": "number",
+            "maximum": 10,  # sanity
+            "exclusiveMinimum": 0
+        },
         "database-credentials": {
             "type": "object",
             "properties": {
@@ -50,14 +55,25 @@ CONFIG_SCHEMA = {
             "additionalProperties": False
         },
         "junosspace-credentials": {
-            "api": {"type": "string"},
-            "username": {"type": "string"},
-            "password": {"type": "string"}
+            "type": "object",
+            "properties": {
+                "api": {"type": "string"},
+                "username": {"type": "string"},
+                "password": {"type": "string"}
+            },
+            "required": ["api", "username", "password"],
+            "additionalProperties": False
         },
-        "timeout": {
-            "type": "number",
-            "maximum": 10,  # sanity
-            "exclusiveMinimum": 0
+        "interface-address": {
+            "type": "object",
+            "properties": {
+                "address": {"type": "string"},
+                "network": {"type": "string"},
+                "interface": {"type": "string"},
+                "router": {"type": "string"}
+            },
+            "required": ["address", "network", "interface", "router"],
+            "additionalProperties": False
         }
     },
 
@@ -73,6 +89,10 @@ CONFIG_SCHEMA = {
             "items": {"type": "integer"}
         },
         "junosspace": {"$ref": "#/definitions/junosspace-credentials"},
+        "unmanaged-interfaces": {
+            "type": "array",
+            "items": {"$ref": "#/definitions/interface-address"}
+        }
     },
     "oneOf": [
         {