diff --git a/server/src/com/cloud/configuration/Config.java b/server/src/com/cloud/configuration/Config.java
index b4731739839..f3fee5b68d6 100755
--- a/server/src/com/cloud/configuration/Config.java
+++ b/server/src/com/cloud/configuration/Config.java
@@ -144,6 +144,7 @@ public enum Config {
 	LinkLocalIpNums("Advanced", ManagementServer.class, Integer.class, "linkLocalIp.nums", "10", "The number of link local ip that needed by domR(in power of 2)", null),
 	HypervisorList("Advanced", ManagementServer.class, String.class, "hypervisor.list", HypervisorType.KVM + "," + HypervisorType.XenServer + "," + HypervisorType.VMware, "The list of hypervisors that this deployment will use.", "hypervisorList"),
 	ManagementHostIPAdr("Advanced", ManagementServer.class, String.class, "host", "localhost", "The ip address of management server", null),
+	ManagementNetwork("Advanced", ManagementServer.class, String.class, "management.network.cidr", null, "The cidr of management server network", null),
 	EventPurgeDelay("Advanced", ManagementServer.class, Integer.class, "event.purge.delay", "15", "Events older than specified number days will be purged. Set this value to 0 to never delete events", null),
     UseLocalStorage("Premium", ManagementServer.class, Boolean.class, "use.local.storage", "false", "Should we use the local storage if it's available?", null),
 	SecStorageVmRamSize("Advanced", AgentManager.class, Integer.class, "secstorage.vm.ram.size", String.valueOf(SecondaryStorageVmManager.DEFAULT_SS_VM_RAMSIZE), "RAM size (in MB) used to create new secondary storage vms", null),
diff --git a/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java b/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
index b1d92dd802c..f1d310f161d 100644
--- a/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
+++ b/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
@@ -282,6 +282,7 @@ public class VirtualNetworkApplianceManagerImpl implements VirtualNetworkApplian
     int _retry = 2;
     String _instance;
     String _mgmt_host;
+    String _mgmt_cidr;
 
     int _routerStatsInterval = 300;
     private ServiceOfferingVO _offering;
@@ -900,9 +901,12 @@ public class VirtualNetworkApplianceManagerImpl implements VirtualNetworkApplian
                     	if(s_logger.isInfoEnabled()) {
                             s_logger.info("Add management server explicit route to DomR.");
                         }
-
-                		buf.append(" mgmtcidr=").append(_mgmt_host);
-	                    buf.append(" localgw=").append(dest.getPod().getGateway());
+                    	
+                    	_mgmt_cidr = _configDao.getValue(Config.ManagementNetwork.key());
+                    	if (NetUtils.isValidCIDR(_mgmt_cidr)) {
+                    	    buf.append(" mgmtcidr=").append(_mgmt_cidr);
+                    	    buf.append(" localgw=").append(dest.getPod().getGateway());
+                    	}
                 	} else {
                     	if(s_logger.isInfoEnabled()) {
                             s_logger.info("Management server host is at same subnet at pod private network, don't add explict route to DomR");