diff --git a/types/v56/types.go b/types/v56/types.go
index 103c67e..2d709c3 100644
--- a/types/v56/types.go
+++ b/types/v56/types.go
@@ -42,6 +42,12 @@ var VDCStatuses = map[int]string{
 	3:  "UNRECOGNIZED",
 }
 
+// Defines the network and IP mode (POOL, DHCP, MANUAL) for a VM NIC adapter
+type VAppVDCNetworkAllocation struct {
+	VAppNetwork *OrgVDCNetwork
+	IPAddressAllocationMode string
+}
+
 // VCD API
 
 // DefaultStorageProfileSection is the name of the storage profile that will be specified for this virtual machine. The named storage profile must exist in the organization vDC that contains the virtual machine. If not specified, the default storage profile for the vDC is used.
diff --git a/vapp.go b/vapp.go
index e83dad8..f801c97 100644
--- a/vapp.go
+++ b/vapp.go
@@ -184,9 +184,9 @@ func (v *VApp) RemoveVM(vm VM) error {
 	return nil
 }
 
-func (v *VApp) ComposeVApp(orgvdcnetworks []*types.OrgVDCNetwork, vapptemplate VAppTemplate, storageprofileref types.Reference, name string, description string) (Task, error) {
+func (v *VApp) ComposeVApp(networkAllocations []types.VAppVDCNetworkAllocation, vapptemplate VAppTemplate, storageprofileref types.Reference, name string, description string) (Task, error) {
 
-	if vapptemplate.VAppTemplate.Children == nil || orgvdcnetworks == nil {
+	if vapptemplate.VAppTemplate.Children == nil || networkAllocations == nil {
 		return Task{}, fmt.Errorf("can't compose a new vApp, objects passed are not valid")
 	}
 
@@ -220,32 +220,32 @@ func (v *VApp) ComposeVApp(orgvdcnetworks []*types.OrgVDCNetwork, vapptemplate V
 		},
 	}
 
-	for index, orgvdcnetwork := range orgvdcnetworks {
+	for index, vAppVDCNetworkAllocation := range networkAllocations {
 		vcomp.InstantiationParams.NetworkConfigSection.NetworkConfig = append(vcomp.InstantiationParams.NetworkConfigSection.NetworkConfig,
 			types.VAppNetworkConfiguration{
-				NetworkName: orgvdcnetwork.Name,
+				NetworkName: vAppVDCNetworkAllocation.VAppNetwork.Name,
 				Configuration: &types.NetworkConfiguration{
 					FenceMode: "bridged",
 					ParentNetwork: &types.Reference{
-						HREF: orgvdcnetwork.HREF,
-						Name: orgvdcnetwork.Name,
-						Type: orgvdcnetwork.Type,
+						HREF: vAppVDCNetworkAllocation.VAppNetwork.HREF,
+						Name: vAppVDCNetworkAllocation.VAppNetwork.Name,
+						Type: vAppVDCNetworkAllocation.VAppNetwork.Type,
 					},
 				},
 			},
 		)
 		vcomp.SourcedItem.InstantiationParams.NetworkConnectionSection.NetworkConnection = append(vcomp.SourcedItem.InstantiationParams.NetworkConnectionSection.NetworkConnection,
 			&types.NetworkConnection{
-				Network:                 orgvdcnetwork.Name,
+				Network:                 vAppVDCNetworkAllocation.VAppNetwork.Name,
 				NetworkConnectionIndex:  index,
 				IsConnected:             true,
-				IPAddressAllocationMode: "POOL",
+				IPAddressAllocationMode: vAppVDCNetworkAllocation.IPAddressAllocationMode,
 			},
 		)
 		vcomp.SourcedItem.NetworkAssignment = append(vcomp.SourcedItem.NetworkAssignment,
 			&types.NetworkAssignment{
-				InnerNetwork:     orgvdcnetwork.Name,
-				ContainerNetwork: orgvdcnetwork.Name,
+				InnerNetwork:     vAppVDCNetworkAllocation.VAppNetwork.Name,
+				ContainerNetwork: vAppVDCNetworkAllocation.VAppNetwork.Name,
 			},
 		)
 	}
diff --git a/vapp_test.go b/vapp_test.go
index 904ba04..fa1d194 100644
--- a/vapp_test.go
+++ b/vapp_test.go
@@ -28,9 +28,9 @@ func (s *S) Test_ComposeVApp(c *C) {
 	c.Assert(err, IsNil)
 
 	// Populate OrgVDCNetwork
-	networks := []*types.OrgVDCNetwork{}
 	net, err := s.vdc.FindVDCNetwork("networkName")
-	networks = append(networks, net.OrgVDCNetwork)
+	vAppVDCNetworkAllocationMode := types.VAppVDCNetworkAllocation{VAppNetwork: net.OrgVDCNetwork, IPAddressAllocationMode: "POOL"}
+	networkAllocations := []types.VAppVDCNetworkAllocation{vAppVDCNetworkAllocationMode}
 	c.Assert(err, IsNil)
 
 	// Populate Catalog
@@ -50,7 +50,7 @@ func (s *S) Test_ComposeVApp(c *C) {
 	c.Assert(err, IsNil)
 
 	// Compose VApp
-	task, err := s.vapp.ComposeVApp(networks, vapptemplate, storageprofileref, "name", "description")
+	task, err := s.vapp.ComposeVApp(networkAllocations, vapptemplate, storageprofileref, "name", "description")
 	c.Assert(err, IsNil)
 	c.Assert(task.Task.OperationName, Equals, "vdcInstantiateVapp")
 	c.Assert(s.vapp.VApp.HREF, Equals, "http://localhost:4444/api/vApp/vapp-00000000-0000-0000-0000-000000000000")
@@ -114,9 +114,9 @@ func (s *S) Test_SetOvf(c *C) {
 	c.Assert(err, IsNil)
 
 	// Populate OrgVDCNetwork
-	networks := []*types.OrgVDCNetwork{}
 	net, err := s.vdc.FindVDCNetwork("networkName")
-	networks = append(networks, net.OrgVDCNetwork)
+	vAppVDCNetworkAllocationMode := types.VAppVDCNetworkAllocation{VAppNetwork: net.OrgVDCNetwork, IPAddressAllocationMode: "POOL"}
+	networkAllocations := []types.VAppVDCNetworkAllocation{vAppVDCNetworkAllocationMode}
 	c.Assert(err, IsNil)
 
 	// Populate Catalog
@@ -136,7 +136,7 @@ func (s *S) Test_SetOvf(c *C) {
 	c.Assert(err, IsNil)
 
 	// Compose VApp
-	task, err := s.vapp.ComposeVApp(networks, vapptemplate, storageprofileref, "name", "description")
+	task, err := s.vapp.ComposeVApp(networkAllocations, vapptemplate, storageprofileref, "name", "description")
 	c.Assert(err, IsNil)
 	c.Assert(task.Task.OperationName, Equals, "vdcInstantiateVapp")
 	c.Assert(s.vapp.VApp.HREF, Equals, "http://localhost:4444/api/vApp/vapp-00000000-0000-0000-0000-000000000000")
@@ -170,9 +170,9 @@ func (s *S) Test_AddMetadata(c *C) {
 	c.Assert(err, IsNil)
 
 	// Populate OrgVDCNetwork
-	networks := []*types.OrgVDCNetwork{}
 	net, err := s.vdc.FindVDCNetwork("networkName")
-	networks = append(networks, net.OrgVDCNetwork)
+	vAppVDCNetworkAllocationMode := types.VAppVDCNetworkAllocation{VAppNetwork: net.OrgVDCNetwork, IPAddressAllocationMode: "POOL"}
+	networkAllocations := []types.VAppVDCNetworkAllocation{vAppVDCNetworkAllocationMode}
 	c.Assert(err, IsNil)
 
 	// Populate Catalog
@@ -192,7 +192,7 @@ func (s *S) Test_AddMetadata(c *C) {
 	c.Assert(err, IsNil)
 
 	// Compose VApp
-	task, err := s.vapp.ComposeVApp(networks, vapptemplate, storageprofileref, "name", "description")
+	task, err := s.vapp.ComposeVApp(networkAllocations, vapptemplate, storageprofileref, "name", "description")
 	c.Assert(err, IsNil)
 	c.Assert(task.Task.OperationName, Equals, "vdcInstantiateVapp")
 	c.Assert(s.vapp.VApp.HREF, Equals, "http://localhost:4444/api/vApp/vapp-00000000-0000-0000-0000-000000000000")
@@ -225,9 +225,9 @@ func (s *S) Test_ChangeStorageProfile(c *C) {
 	c.Assert(err, IsNil)
 
 	// Populate OrgVDCNetwork
-	networks := []*types.OrgVDCNetwork{}
 	net, err := s.vdc.FindVDCNetwork("networkName")
-	networks = append(networks, net.OrgVDCNetwork)
+	vAppVDCNetworkAllocationMode := types.VAppVDCNetworkAllocation{VAppNetwork: net.OrgVDCNetwork, IPAddressAllocationMode: "POOL"}
+	networkAllocations := []types.VAppVDCNetworkAllocation{vAppVDCNetworkAllocationMode}
 	c.Assert(err, IsNil)
 
 	// Populate Catalog
@@ -247,7 +247,7 @@ func (s *S) Test_ChangeStorageProfile(c *C) {
 	c.Assert(err, IsNil)
 
 	// Compose VApp
-	task, err := s.vapp.ComposeVApp(networks, vapptemplate, storageprofileref, "name", "description")
+	task, err := s.vapp.ComposeVApp(networkAllocations, vapptemplate, storageprofileref, "name", "description")
 	c.Assert(err, IsNil)
 	c.Assert(task.Task.OperationName, Equals, "vdcInstantiateVapp")
 	c.Assert(s.vapp.VApp.HREF, Equals, "http://localhost:4444/api/vApp/vapp-00000000-0000-0000-0000-000000000000")
@@ -279,9 +279,9 @@ func (s *S) Test_ChangeVMName(c *C) {
 	c.Assert(err, IsNil)
 
 	// Populate OrgVDCNetwork
-	networks := []*types.OrgVDCNetwork{}
 	net, err := s.vdc.FindVDCNetwork("networkName")
-	networks = append(networks, net.OrgVDCNetwork)
+	vAppVDCNetworkAllocationMode := types.VAppVDCNetworkAllocation{VAppNetwork: net.OrgVDCNetwork, IPAddressAllocationMode: "POOL"}
+	networkAllocations := []types.VAppVDCNetworkAllocation{vAppVDCNetworkAllocationMode}
 	c.Assert(err, IsNil)
 
 	// Populate Catalog
@@ -301,7 +301,7 @@ func (s *S) Test_ChangeVMName(c *C) {
 	c.Assert(err, IsNil)
 
 	// Compose VApp
-	task, err := s.vapp.ComposeVApp(networks, vapptemplate, storageprofileref, "name", "description")
+	task, err := s.vapp.ComposeVApp(networkAllocations, vapptemplate, storageprofileref, "name", "description")
 	c.Assert(err, IsNil)
 	c.Assert(task.Task.OperationName, Equals, "vdcInstantiateVapp")
 	c.Assert(s.vapp.VApp.HREF, Equals, "http://localhost:4444/api/vApp/vapp-00000000-0000-0000-0000-000000000000")
@@ -399,9 +399,9 @@ func (s *S) Test_RunCustomizationScript(c *C) {
 	c.Assert(err, IsNil)
 
 	// Populate OrgVDCNetwork
-	networks := []*types.OrgVDCNetwork{}
 	net, err := s.vdc.FindVDCNetwork("networkName")
-	networks = append(networks, net.OrgVDCNetwork)
+	vAppVDCNetworkAllocationMode := types.VAppVDCNetworkAllocation{VAppNetwork: net.OrgVDCNetwork, IPAddressAllocationMode: "POOL"}
+	networkAllocations := []types.VAppVDCNetworkAllocation{vAppVDCNetworkAllocationMode}
 	c.Assert(err, IsNil)
 
 	// Populate Catalog
@@ -421,7 +421,7 @@ func (s *S) Test_RunCustomizationScript(c *C) {
 	c.Assert(err, IsNil)
 
 	// Compose VApp
-	task, err := s.vapp.ComposeVApp(networks, vapptemplate, storageprofileref, "name", "description")
+	task, err := s.vapp.ComposeVApp(networkAllocations, vapptemplate, storageprofileref, "name", "description")
 	c.Assert(err, IsNil)
 	c.Assert(task.Task.OperationName, Equals, "vdcInstantiateVapp")
 	c.Assert(s.vapp.VApp.HREF, Equals, "http://localhost:4444/api/vApp/vapp-00000000-0000-0000-0000-000000000000")
@@ -453,9 +453,9 @@ func (s *S) Test_ChangeCPUcount(c *C) {
 	c.Assert(err, IsNil)
 
 	// Populate OrgVDCNetwork
-	networks := []*types.OrgVDCNetwork{}
 	net, err := s.vdc.FindVDCNetwork("networkName")
-	networks = append(networks, net.OrgVDCNetwork)
+	vAppVDCNetworkAllocationMode := types.VAppVDCNetworkAllocation{VAppNetwork: net.OrgVDCNetwork, IPAddressAllocationMode: "POOL"}
+	networkAllocations := []types.VAppVDCNetworkAllocation{vAppVDCNetworkAllocationMode}
 	c.Assert(err, IsNil)
 
 	// Populate Catalog
@@ -475,7 +475,7 @@ func (s *S) Test_ChangeCPUcount(c *C) {
 	c.Assert(err, IsNil)
 
 	// Compose VApp
-	task, err := s.vapp.ComposeVApp(networks, vapptemplate, storageprofileref, "name", "description")
+	task, err := s.vapp.ComposeVApp(networkAllocations, vapptemplate, storageprofileref, "name", "description")
 	c.Assert(err, IsNil)
 	c.Assert(task.Task.OperationName, Equals, "vdcInstantiateVapp")
 	c.Assert(s.vapp.VApp.HREF, Equals, "http://localhost:4444/api/vApp/vapp-00000000-0000-0000-0000-000000000000")
@@ -507,9 +507,9 @@ func (s *S) Test_ChangeMemorySize(c *C) {
 	c.Assert(err, IsNil)
 
 	// Populate OrgVDCNetwork
-	networks := []*types.OrgVDCNetwork{}
 	net, err := s.vdc.FindVDCNetwork("networkName")
-	networks = append(networks, net.OrgVDCNetwork)
+	vAppVDCNetworkAllocationMode := types.VAppVDCNetworkAllocation{VAppNetwork: net.OrgVDCNetwork, IPAddressAllocationMode: "POOL"}
+	networkAllocations := []types.VAppVDCNetworkAllocation{vAppVDCNetworkAllocationMode}
 	c.Assert(err, IsNil)
 
 	// Populate Catalog
@@ -529,7 +529,7 @@ func (s *S) Test_ChangeMemorySize(c *C) {
 	c.Assert(err, IsNil)
 
 	// Compose VApp
-	task, err := s.vapp.ComposeVApp(networks, vapptemplate, storageprofileref, "name", "description")
+	task, err := s.vapp.ComposeVApp(networkAllocations, vapptemplate, storageprofileref, "name", "description")
 	c.Assert(err, IsNil)
 	c.Assert(task.Task.OperationName, Equals, "vdcInstantiateVapp")
 	c.Assert(s.vapp.VApp.HREF, Equals, "http://localhost:4444/api/vApp/vapp-00000000-0000-0000-0000-000000000000")