diff --git a/server/controller/cloud/config/config.go b/server/controller/cloud/config/config.go
index 05929f0b73d..e152b6c4a16 100644
--- a/server/controller/cloud/config/config.go
+++ b/server/controller/cloud/config/config.go
@@ -29,7 +29,6 @@ type CloudConfig struct {
 	KubernetesGatherInterval uint32          `default:"30" yaml:"kubernetes_gather_interval"`
 	AliyunRegionName         string          `default:"cn-beijing" yaml:"aliyun_region_name"`
 	AWSRegionName            string          `default:"cn-north-1" yaml:"aws_region_name"`
-	GenesisDefaultVpcName    string          `default:"default_vpc" yaml:"genesis_default_vpc"`
 	HostnameToIPFile         string          `default:"/etc/hostname_to_ip.csv" yaml:"hostname_to_ip_file"`
 	DNSEnable                bool            `default:"false" yaml:"dns_enable"`
 	HTTPTimeout              int             `default:"30" yaml:"http_timeout"`
diff --git a/server/controller/cloud/genesis/genesis.go b/server/controller/cloud/genesis/genesis.go
index 03cee932c3d..5a5a99768c2 100644
--- a/server/controller/cloud/genesis/genesis.go
+++ b/server/controller/cloud/genesis/genesis.go
@@ -38,7 +38,6 @@ import (
 var log = logging.MustGetLogger("cloud.genesis")
 
 type Genesis struct {
-	defaultVpc      bool
 	ipV4CIDRMaxMask int
 	ipV6CIDRMaxMask int
 	Name            string
@@ -46,7 +45,6 @@ type Genesis struct {
 	UuidGenerate    string
 	regionUuid      string
 	azLcuuid        string
-	defaultVpcName  string
 	ips             []cloudmodel.IP
 	subnets         []cloudmodel.Subnet
 	genesisData     genesis.GenesisSyncData
@@ -73,7 +71,6 @@ func NewGenesis(domain mysql.Domain, cfg config.CloudConfig) (*Genesis, error) {
 		Name:            domain.Name,
 		Lcuuid:          domain.Lcuuid,
 		UuidGenerate:    domain.DisplayName,
-		defaultVpcName:  cfg.GenesisDefaultVpcName,
 		regionUuid:      config.Get("region_uuid").MustString(),
 		genesisData:     genesis.GenesisSyncData{},
 		cloudStatsd:     statsd.NewCloudStatsd(),
@@ -258,7 +255,6 @@ func (g *Genesis) generateIPsAndSubnets() {
 
 func (g *Genesis) GetCloudData() (cloudmodel.Resource, error) {
 	g.azLcuuid = ""
-	g.defaultVpc = false
 	g.cloudStatsd = statsd.NewCloudStatsd()
 
 	if genesis.GenesisService == nil {
@@ -312,14 +308,6 @@ func (g *Genesis) GetCloudData() (cloudmodel.Resource, error) {
 	if err != nil {
 		return cloudmodel.Resource{}, err
 	}
-	if g.defaultVpc {
-		vpc := cloudmodel.VPC{
-			Lcuuid:       common.GetUUID(g.defaultVpcName, uuid.Nil),
-			Name:         g.defaultVpcName,
-			RegionLcuuid: g.regionUuid,
-		}
-		vpcs = append(vpcs, vpc)
-	}
 
 	resource := cloudmodel.Resource{
 		IPs:         ips,
diff --git a/server/controller/cloud/genesis/network.go b/server/controller/cloud/genesis/network.go
index a0d164c4b30..2ce0100342b 100644
--- a/server/controller/cloud/genesis/network.go
+++ b/server/controller/cloud/genesis/network.go
@@ -21,9 +21,6 @@ import (
 	"time"
 
 	"github.com/deepflowio/deepflow/server/controller/cloud/model"
-	"github.com/deepflowio/deepflow/server/controller/common"
-
-	uuid "github.com/satori/go.uuid"
 )
 
 func (g *Genesis) getNetworks() ([]model.Network, error) {
@@ -38,11 +35,6 @@ func (g *Genesis) getNetworks() ([]model.Network, error) {
 			log.Debug("segmentation id not found")
 			continue
 		}
-		vpcLcuuid := n.VPCLcuuid
-		if vpcLcuuid == "" {
-			vpcLcuuid = common.GetUUID(g.defaultVpcName, uuid.Nil)
-			g.defaultVpc = true
-		}
 		networkName := n.Name
 		if networkName == "" {
 			networkName = "subnet_vni_" + strconv.Itoa(int(n.SegmentationID))
@@ -51,7 +43,7 @@ func (g *Genesis) getNetworks() ([]model.Network, error) {
 			Lcuuid:         n.Lcuuid,
 			Name:           networkName,
 			SegmentationID: int(n.SegmentationID),
-			VPCLcuuid:      vpcLcuuid,
+			VPCLcuuid:      n.VPCLcuuid,
 			Shared:         false,
 			External:       n.External,
 			NetType:        int(n.NetType),
diff --git a/server/controller/cloud/genesis/subnet.go b/server/controller/cloud/genesis/subnet.go
index 4c6492ec0eb..026f3e819ec 100644
--- a/server/controller/cloud/genesis/subnet.go
+++ b/server/controller/cloud/genesis/subnet.go
@@ -20,9 +20,6 @@ import (
 	"time"
 
 	"github.com/deepflowio/deepflow/server/controller/cloud/model"
-	"github.com/deepflowio/deepflow/server/controller/common"
-
-	uuid "github.com/satori/go.uuid"
 )
 
 func (g *Genesis) getSubnets() ([]model.Subnet, error) {
@@ -36,11 +33,6 @@ func (g *Genesis) getSubnets() ([]model.Subnet, error) {
 			log.Debug("network lcuuid not found")
 			continue
 		}
-		vpcLcuuid := s.VPCLcuuid
-		if vpcLcuuid == "" {
-			vpcLcuuid = common.GetUUID(g.defaultVpcName, uuid.Nil)
-			g.defaultVpc = true
-		}
 		subnetName := s.Name
 		if subnetName == "" {
 			subnetName = "subnet_" + s.Lcuuid[:11]
@@ -49,7 +41,7 @@ func (g *Genesis) getSubnets() ([]model.Subnet, error) {
 			Lcuuid:        s.Lcuuid,
 			Name:          subnetName,
 			CIDR:          s.CIDR,
-			VPCLcuuid:     vpcLcuuid,
+			VPCLcuuid:     s.VPCLcuuid,
 			NetworkLcuuid: s.NetworkLcuuid,
 		}
 		subnets = append(subnets, subnet)
diff --git a/server/controller/cloud/genesis/vinterface.go b/server/controller/cloud/genesis/vinterface.go
index 3654a6c7dfb..67c749d73f6 100644
--- a/server/controller/cloud/genesis/vinterface.go
+++ b/server/controller/cloud/genesis/vinterface.go
@@ -20,9 +20,6 @@ import (
 	"time"
 
 	"github.com/deepflowio/deepflow/server/controller/cloud/model"
-	"github.com/deepflowio/deepflow/server/controller/common"
-
-	uuid "github.com/satori/go.uuid"
 )
 
 func (g *Genesis) getVinterfaces() ([]model.VInterface, error) {
@@ -37,16 +34,11 @@ func (g *Genesis) getVinterfaces() ([]model.VInterface, error) {
 			log.Debug("device lcuuid or network lcuuid not found")
 			continue
 		}
-		vpcLcuuid := v.VPCLcuuid
-		if vpcLcuuid == "" {
-			vpcLcuuid = common.GetUUID(g.defaultVpcName, uuid.Nil)
-			g.defaultVpc = true
-		}
 		vinterface := model.VInterface{
 			Lcuuid:        v.Lcuuid,
 			Type:          int(v.Type),
 			Mac:           v.Mac,
-			VPCLcuuid:     vpcLcuuid,
+			VPCLcuuid:     v.VPCLcuuid,
 			RegionLcuuid:  g.regionUuid,
 			DeviceType:    int(v.DeviceType),
 			DeviceLcuuid:  v.DeviceLcuuid,
diff --git a/server/controller/cloud/genesis/vm.go b/server/controller/cloud/genesis/vm.go
index f61e1341b28..2ae0a88a443 100644
--- a/server/controller/cloud/genesis/vm.go
+++ b/server/controller/cloud/genesis/vm.go
@@ -21,8 +21,6 @@ import (
 
 	"github.com/deepflowio/deepflow/server/controller/cloud/model"
 	"github.com/deepflowio/deepflow/server/controller/common"
-
-	uuid "github.com/satori/go.uuid"
 )
 
 func (g *Genesis) getVMs() ([]model.VM, error) {
@@ -33,11 +31,6 @@ func (g *Genesis) getVMs() ([]model.VM, error) {
 	g.cloudStatsd.RefreshAPIMoniter("vms", len(vmsData), time.Time{})
 
 	for _, v := range vmsData {
-		vpcLcuuid := v.VPCLcuuid
-		if vpcLcuuid == "" {
-			vpcLcuuid = common.GetUUID(g.defaultVpcName, uuid.Nil)
-			g.defaultVpc = true
-		}
 		launchServer := v.LaunchServer
 		if launchServer == "127.0.0.1" {
 			launchServer = ""
@@ -47,7 +40,7 @@ func (g *Genesis) getVMs() ([]model.VM, error) {
 			Name:         v.Name,
 			Label:        v.Label,
 			HType:        common.VM_HTYPE_VM_C,
-			VPCLcuuid:    vpcLcuuid,
+			VPCLcuuid:    v.VPCLcuuid,
 			State:        int(v.State),
 			LaunchServer: launchServer,
 			CreatedAt:    v.CreatedAt,
diff --git a/server/controller/cloud/genesis/vpc.go b/server/controller/cloud/genesis/vpc.go
index ca94c8bb413..8dcbd076b4f 100644
--- a/server/controller/cloud/genesis/vpc.go
+++ b/server/controller/cloud/genesis/vpc.go
@@ -20,9 +20,6 @@ import (
 	"time"
 
 	"github.com/deepflowio/deepflow/server/controller/cloud/model"
-	"github.com/deepflowio/deepflow/server/controller/common"
-
-	uuid "github.com/satori/go.uuid"
 )
 
 func (g *Genesis) getVPCs() ([]model.VPC, error) {
@@ -33,12 +30,8 @@ func (g *Genesis) getVPCs() ([]model.VPC, error) {
 	g.cloudStatsd.RefreshAPIMoniter("vpcs", len(vpcsData), time.Time{})
 
 	for _, v := range vpcsData {
-		vpcLcuuid := v.Lcuuid
-		if vpcLcuuid == "" {
-			vpcLcuuid = common.GetUUID(v.Name, uuid.Nil)
-		}
 		vpc := model.VPC{
-			Lcuuid:       vpcLcuuid,
+			Lcuuid:       v.Lcuuid,
 			Name:         v.Name,
 			RegionLcuuid: g.regionUuid,
 		}
diff --git a/server/controller/genesis/config/config.go b/server/controller/genesis/config/config.go
index a533933bd30..6f8bf372470 100644
--- a/server/controller/genesis/config/config.go
+++ b/server/controller/genesis/config/config.go
@@ -26,6 +26,7 @@ type GenesisConfig struct {
 	DataPersistenceInterval int      `default:"60" yaml:"data_persistence_interval"`
 	MultiNSMode             bool     `default:"false" yaml:"multi_ns_mode"`
 	SingleVPCMode           bool     `default:"false" yaml:"single_vpc_mode"`
+	DefaultVPCName          string   `default:"default-public-vpc" yaml:"default_vpc_name"`
 	IgnoreNICRegex          string   `default:"^(kube-ipvs)" yaml:"ignore_nic_regex"`
 	VMNameField             string   `default:"metadata" yaml:"vm_name_field"`
 }
diff --git a/server/controller/genesis/updater.go b/server/controller/genesis/updater.go
index ac7fdd5a036..08a093364e3 100644
--- a/server/controller/genesis/updater.go
+++ b/server/controller/genesis/updater.go
@@ -57,6 +57,7 @@ type GenesisSyncRpcUpdater struct {
 	multiNSMode           bool
 	singleVPCMode         bool
 	vmNameField           string
+	defaultVPCName        string
 	ignoreNICRegex        *regexp.Regexp
 	genesisSyncDataByPeer map[uint32]GenesisSyncDataOperation
 }
@@ -144,6 +145,7 @@ func NewGenesisSyncRpcUpdater(storage *SyncStorage, queue queue.QueueReader, cfg
 		multiNSMode:           cfg.MultiNSMode,
 		singleVPCMode:         cfg.SingleVPCMode,
 		vmNameField:           cfg.VMNameField,
+		defaultVPCName:        cfg.DefaultVPCName,
 		ignoreNICRegex:        ignoreNICRegex,
 		genesisSyncDataByPeer: map[uint32]GenesisSyncDataOperation{},
 	}
@@ -374,13 +376,15 @@ func (v *GenesisSyncRpcUpdater) ParseHostAsVmPlatformInfo(info VIFRPCMessage, pe
 		log.Error(err.Error())
 		return GenesisSyncDataOperation{}
 	}
-	// check if vm is behind NAT
-	behindNat := peer != natIP
+
 	vpc := model.GenesisVpc{
-		Name:   "default-public-cloud-vpc",
-		Lcuuid: common.GetUUID("default-public-cloud-vpc", uuid.Nil),
+		Name:   v.defaultVPCName,
+		Lcuuid: common.GetUUID(v.defaultVPCName, uuid.Nil),
 		VtapID: vtapID,
 	}
+	// check if vm is behind NAT
+	behindNat := peer != natIP
+	log.Infof("host (%s) nat ip is (%s) peer ip is (%s), behind nat: (%t), single vpc mode: (%t)", hostName, natIP, peer, behindNat, v.singleVPCMode)
 	if behindNat && !v.singleVPCMode {
 		vpc = model.GenesisVpc{
 			Name:   "VPC-" + peer,
diff --git a/server/server.yaml b/server/server.yaml
index 4b25941a01a..31d6052630e 100644
--- a/server/server.yaml
+++ b/server/server.yaml
@@ -180,8 +180,6 @@ controller:
         aliyun_region_name: cn-beijing
         # AWS API获取区域列表时，需要指定一个区域，并通过这个区域区分国际版和国内版
         aws_region_name: cn-north-1
-        # 采集器同步默认vpc名称
-        genesis_default_vpc: default_vpc
         # 配置宿主机IP文件
         hostname_to_ip_file: /etc/hostname_to_ip.csv
         # 开启debug模式，支持debug云平台API/SDK原始数据
@@ -269,6 +267,9 @@ controller:
     ipv4_cidr_max_mask: 24
     ipv6_cidr_max_mask: 64
 
+    # 采集器同步默认vpc名称
+    default_vpc_name: default-public-vpc
+
     # 采集器上报数据处理的队列长度
     queue_length: 1000