diff --git a/app/models/ems_cluster.rb b/app/models/ems_cluster.rb
index cb6784f51ca3..d6c687d06311 100644
--- a/app/models/ems_cluster.rb
+++ b/app/models/ems_cluster.rb
@@ -34,6 +34,8 @@ class EmsCluster < ApplicationRecord
 
   virtual_has_many :storages,       :uses => {:hosts => :storages}
   virtual_has_many :resource_pools, :uses => :all_relationships
+  virtual_has_many :lans,           :uses => {:hosts => :lans}
+
   has_many :failover_hosts, -> { failover }, :class_name => "Host"
 
   include SerializedEmsRefObjMixin
@@ -230,6 +232,12 @@ def memory_reserve
     get_reserve(:memory_reserve)
   end
 
+  def lans
+    hosts = all_hosts
+    MiqPreloader.preload(hosts, :lans)
+    hosts.collect(&:lans).flatten.compact.uniq
+  end
+
   def effective_resource(resource)
     resource = resource.to_s
     unless %w(cpu vcpu memory).include?(resource)