fix mcast_rate

site.conf

@@ -22,7 +22,7 @@
 		ibss = {
 			ssid = 'wifimesh-dortmund',
 			bssid = '02:ff:d0:09:ff:01',
-			mesh_mcast_rate = 12000,
+			mcast_rate = 12000,
 		},
 	},