conf fix

config.json

@@ -13,7 +13,7 @@
   },
   "discovery": {
     "range_start": "192.168.65.100",
-    "range_end": "192.168.65.100",
+    "range_end": "192.168.65.120",
     "discover_port": 28149,
     "probe_timeout": 1.0,
     "probe_workers": 64
@@ -26,7 +26,7 @@
     "forget_after": 600,
     "hello_timeout": 3,
     "max_members": 10,
-    "admission": "closed"
+    "admission": "open"
   },
   "foreman": {
     "interval": 5,