Index: tools/gformat.py
===================================================================
--- tools/gformat.py	(revision 13898)
+++ tools/gformat.py	(revision 13906)
@@ -530,4 +530,14 @@
 log-facility local7;
 
+# UniFi Discovery Support
+option space ubnt;
+option ubnt.unifi-address code 1 = ip-address;
+#
+class "ubnt" {
+        match if substring (option vendor-class-identifier, 0, 4) = "ubnt";
+        option vendor-class-identifier "ubnt";
+        vendor-option-space ubnt;
+}
+
 #
 # Interface definitions
@@ -599,5 +609,5 @@
         option routers %(autogen_addr)s;
         option domain-name-servers %(autogen_dns_servers)s;
-
+        option ubnt.unifi-address 172.17.107.10;
       }
       """ % datadump[iface_key]))