diff --git a/api/src/com/cloud/api/commands/CreateNetworkOfferingCmd.java b/api/src/com/cloud/api/commands/CreateNetworkOfferingCmd.java
index 2b523a09c73..b4487f374cf 100644
--- a/api/src/com/cloud/api/commands/CreateNetworkOfferingCmd.java
+++ b/api/src/com/cloud/api/commands/CreateNetworkOfferingCmd.java
@@ -18,6 +18,9 @@
 
 package com.cloud.api.commands;
 
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
 import java.util.Map;
 
 import org.apache.log4j.Logger;
@@ -28,6 +31,7 @@ import com.cloud.api.Implementation;
 import com.cloud.api.Parameter;
 import com.cloud.api.ServerApiException;
 import com.cloud.api.response.NetworkOfferingResponse;
+import com.cloud.exception.InvalidParameterValueException;
 import com.cloud.offering.NetworkOffering;
 import com.cloud.offering.NetworkOffering.Availability;
 import com.cloud.user.Account;
@@ -127,7 +131,7 @@ public class CreateNetworkOfferingCmd extends BaseCmd {
     }
 
     public String getAvailability() {
-        return availability == null ? Availability.Required.toString() : availability;
+        return availability == null ? Availability.Optional.toString() : availability;
     }
     
     public Integer getNetworkRate() {
@@ -147,43 +151,56 @@ public class CreateNetworkOfferingCmd extends BaseCmd {
     }
 
     public Boolean getDhcpService() {
-        return dhcpService;
+        return dhcpService == null ? false : dhcpService;
     }
 
     public Boolean getDnsService() {
-        return dnsService;
+        return dnsService == null ? false : dnsService;
     }
 
     public Boolean getGatewayService() {
-        return gatewayService;
+        return gatewayService == null ? false : gatewayService;
     }
 
     public Boolean getFirewallService() {
-        return firewallService;
+        return firewallService == null ? false : firewallService;
     }
 
     public Boolean getLbService() {
-        return lbService;
+        return lbService == null ? false : lbService;
     }
 
     public Boolean getUserdataService() {
-        return userdataService;
+        return userdataService == null ? false : userdataService;
     }
 
     public Boolean getSourceNatService() {
-        return sourceNatService;
+        return sourceNatService == null ? false : sourceNatService;
     }
 
     public Boolean getVpnService() {
-        return vpnService;
+        return vpnService == null ? false : vpnService;
     }
 
-    public Map getServiceProviderList() {
-        return serviceProviderList;
+    public Map<String, String> getServiceProviderList() {
+        Map<String, String> serviceProviderMap = null;
+        if (serviceProviderList != null && !serviceProviderList.isEmpty()) {
+            serviceProviderMap = new HashMap<String, String>();
+            Collection servicesCollection = serviceProviderList.values();
+            Iterator iter = servicesCollection.iterator();
+            while (iter.hasNext()) {
+                HashMap<String, String> services = (HashMap<String, String>) iter.next();
+                String service = (String)services.get("service");
+                String provider = (String) services.get("provider");
+                serviceProviderMap.put(service, provider);
+            }
+        }
+        
+        return serviceProviderMap;
     }
 
     public Boolean getSecurityGroupEnabled() {
-        return securityGroupEnabled;
+        return securityGroupEnabled == null ? false : securityGroupEnabled;
     }
 
     /////////////////////////////////////////////////////
diff --git a/api/src/com/cloud/network/Network.java b/api/src/com/cloud/network/Network.java
index d1603f88bb8..653229728c8 100644
--- a/api/src/com/cloud/network/Network.java
+++ b/api/src/com/cloud/network/Network.java
@@ -109,6 +109,7 @@ public interface Network extends ControlledEntity {
         public static final Provider ExternalDhcpServer = new Provider("ExternalDhcpServer");
         public static final Provider ExternalGateWay = new Provider("ExternalGateWay");
         public static final Provider ElasticLoadBalancerVm = new Provider("ElasticLoadBalancerVm");
+        public static final Provider defaultProvider = VirtualRouter;
 
         public static final Provider None = new Provider("None");
 
diff --git a/server/src/com/cloud/configuration/ConfigurationManagerImpl.java b/server/src/com/cloud/configuration/ConfigurationManagerImpl.java
index 26634a9a9f8..f24e4c61b04 100755
--- a/server/src/com/cloud/configuration/ConfigurationManagerImpl.java
+++ b/server/src/com/cloud/configuration/ConfigurationManagerImpl.java
@@ -2893,40 +2893,57 @@ public class ConfigurationManagerImpl implements ConfigurationManager, Configura
         Map<Network.Service, Network.Provider> serviceProviderMap = new HashMap<Network.Service, Network.Provider>();
         //populate all services first
         if (cmd.getDhcpService()) {
-            serviceProviderMap.put(Network.Service.Dhcp, null);            
-        } else if (cmd.getDnsService()) {
-            serviceProviderMap.put(Network.Service.Dns, null);    
-        } else if (cmd.getFirewallService()) {
-            serviceProviderMap.put(Network.Service.Firewall, null);    
-        } else if (cmd.getGatewayService()) {
-            serviceProviderMap.put(Network.Service.Gateway, null);    
-        } else if (cmd.getLbService()) {
-            serviceProviderMap.put(Network.Service.Lb, null);    
-        } else if (cmd.getSourceNatService()) {
-            serviceProviderMap.put(Network.Service.SourceNat, null);    
-        } else if (cmd.getUserdataService()) {
-            serviceProviderMap.put(Network.Service.UserData, null);    
-        } else if (cmd.getVpnService()) {
-            serviceProviderMap.put(Network.Service.Vpn, null);    
+            serviceProviderMap.put(Network.Service.Dhcp, Network.Provider.defaultProvider);            
+        }
+        
+        if (cmd.getDnsService()) {
+            serviceProviderMap.put(Network.Service.Dns, Network.Provider.defaultProvider);    
+        }
+        
+        if (cmd.getFirewallService()) {
+            serviceProviderMap.put(Network.Service.Firewall, Network.Provider.defaultProvider);    
+        }
+        
+        if (cmd.getGatewayService()) {
+            serviceProviderMap.put(Network.Service.Gateway, Network.Provider.defaultProvider);    
+        }
+        
+        if (cmd.getLbService()) {
+            serviceProviderMap.put(Network.Service.Lb, Network.Provider.defaultProvider);    
+        }
+        
+        if (cmd.getSourceNatService()) {
+            serviceProviderMap.put(Network.Service.SourceNat, Network.Provider.defaultProvider);    
+        }
+        
+        if (cmd.getUserdataService()) {
+            serviceProviderMap.put(Network.Service.UserData, Network.Provider.defaultProvider);    
+        }
+        
+        if (cmd.getVpnService()) {
+            serviceProviderMap.put(Network.Service.Vpn, Network.Provider.defaultProvider);    
         } 
         
         //populate providers
         Map<String, String> svcPrv = (Map<String, String>)cmd.getServiceProviderList();
-        for (String serviceStr : svcPrv.keySet()) {
-            if (serviceProviderMap.containsKey(serviceStr)) {
+        if (svcPrv != null) {
+            for (String serviceStr : svcPrv.keySet()) {
                 Network.Service service = Network.Service.getService(serviceStr);
-                //check if provider is supported
-                Network.Provider provider;
-                String prvNameStr = svcPrv.get(serviceStr);
-                provider = Network.Provider.getProvider(prvNameStr);
-                if (provider == null) {
-                    throw new InvalidParameterValueException("Invalid service provider: " + prvNameStr);
-                }   
-                serviceProviderMap.put(service, provider);
-            } else {
-                throw new InvalidParameterValueException("Service " + serviceStr + " is not enabled for the network offering, can't add a provider to it");
+                if (serviceProviderMap.containsKey(service)) {
+                    //check if provider is supported
+                    Network.Provider provider;
+                    String prvNameStr = svcPrv.get(serviceStr);
+                    provider = Network.Provider.getProvider(prvNameStr);
+                    if (provider == null) {
+                        throw new InvalidParameterValueException("Invalid service provider: " + prvNameStr);
+                    }   
+                    serviceProviderMap.put(service, provider);
+                } else {
+                    throw new InvalidParameterValueException("Service " + serviceStr + " is not enabled for the network offering, can't add a provider to it");
+                }
             }
         }
+        
         return createNetworkOffering(userId, name, displayText, trafficType, tags, maxConnections, specifyVlan, availability, guestIpType, networkRate, serviceProviderMap, false, isSecurityGroupEnabled);
     }
 
diff --git a/server/src/com/cloud/offerings/dao/NetworkOfferingDaoImpl.java b/server/src/com/cloud/offerings/dao/NetworkOfferingDaoImpl.java
index 33d24135058..fe190f70ab5 100644
--- a/server/src/com/cloud/offerings/dao/NetworkOfferingDaoImpl.java
+++ b/server/src/com/cloud/offerings/dao/NetworkOfferingDaoImpl.java
@@ -124,4 +124,11 @@ public class NetworkOfferingDaoImpl extends GenericDaoBase<NetworkOfferingVO, Lo
         return listBy(sc, null);
     }
     
+    @Override
+    public boolean remove(Long networkOfferingId){
+        NetworkOfferingVO offering = findById(networkOfferingId);
+        offering.setName(null);
+        update(networkOfferingId, offering);
+        return super.remove(networkOfferingId);
+    }
 }