diff --git a/cmd/dfget/app/root.go b/cmd/dfget/app/root.go
index 0144a97f7..eeae7c298 100644
--- a/cmd/dfget/app/root.go
+++ b/cmd/dfget/app/root.go
@@ -82,6 +82,10 @@ func runDfget() error {
 		util.Printer.Println(err.Error())
 		return err
 	}
+	if err := handleNodes(); err != nil {
+		util.Printer.Println(err.Error())
+		return err
+	}
 
 	checkParameters()
 	logrus.Infof("get cmd params:%q", os.Args)
@@ -260,6 +264,21 @@ func transFilter(filter string) []string {
 	return strings.Split(filter, "&")
 }
 
+func handleNodes() error {
+	nodes := make([]string, 0)
+
+	for _, v := range cfg.Node {
+		// TODO: check the validity of v.
+		if strings.IndexByte(v, ':') > 0 {
+			nodes = append(nodes, v)
+			continue
+		}
+		nodes = append(nodes, fmt.Sprintf("%s:%d", v, config.DefaultSupernodePort))
+	}
+	cfg.Node = nodes
+	return nil
+}
+
 func resultMsg(cfg *config.Config, end time.Time, e *errors.DfError) string {
 	if e != nil {
 		return fmt.Sprintf("download FAIL(%d) cost:%.3fs length:%d reason:%d error:%v",
diff --git a/common/util/net_util.go b/common/util/net_util.go
index d1c6c6706..82a650945 100644
--- a/common/util/net_util.go
+++ b/common/util/net_util.go
@@ -113,6 +113,29 @@ func ExtractHost(hostAndPort string) string {
 	return fields[0]
 }
 
+// GetIPAndPortFromNode return ip and port by parsing the node value.
+// It will return defaultPort as the value of port
+// when the node is a string without port or with an illegal port.
+func GetIPAndPortFromNode(node string, defaultPort int) (string, int) {
+	if IsEmptyStr(node) {
+		return "", defaultPort
+	}
+
+	nodeFields := strings.Split(node, ":")
+	switch len(nodeFields) {
+	case 1:
+		return nodeFields[0], defaultPort
+	case 2:
+		port, err := strconv.Atoi(nodeFields[1])
+		if err != nil {
+			return nodeFields[0], defaultPort
+		}
+		return nodeFields[0], port
+	default:
+		return "", defaultPort
+	}
+}
+
 // FilterURLParam filters request queries in URL.
 // Eg:
 // If you pass parameters as follows:
diff --git a/common/util/net_util_test.go b/common/util/net_util_test.go
index 676f64d2b..dea5cbe86 100644
--- a/common/util/net_util_test.go
+++ b/common/util/net_util_test.go
@@ -34,6 +34,25 @@ func (suite *UtilSuite) TestExtractHost(c *check.C) {
 	c.Assert(host, check.Equals, "1")
 }
 
+func (suite *UtilSuite) TestGetIPAndPortFromNode(c *check.C) {
+	var cases = []struct {
+		node         string
+		defaultPort  int
+		expectedIP   string
+		expectedPort int
+	}{
+		{"127.0.0.1", 8002, "127.0.0.1", 8002},
+		{"127.0.0.1:8001", 8002, "127.0.0.1", 8001},
+		{"127.0.0.1:abcd", 8002, "127.0.0.1", 8002},
+	}
+
+	for _, v := range cases {
+		ip, port := GetIPAndPortFromNode(v.node, v.defaultPort)
+		c.Check(ip, check.Equals, v.expectedIP)
+		c.Check(port, check.Equals, v.expectedPort)
+	}
+}
+
 func (suite *UtilSuite) TestNetLimit(c *check.C) {
 	speed := NetLimit()
 	if runtime.NumCPU() < 24 {
diff --git a/dfget/config/constants.go b/dfget/config/constants.go
index 6724208be..d52b600ba 100644
--- a/dfget/config/constants.go
+++ b/dfget/config/constants.go
@@ -113,6 +113,8 @@ const (
 
 	DataExpireTime  = 3 * time.Minute
 	ServerAliveTime = 5 * time.Minute
+
+	DefaultSupernodePort = 8002
 )
 
 /* errors code */
diff --git a/dfget/core/api/supernode_api.go b/dfget/core/api/supernode_api.go
index 2d16ced76..674e1bb40 100644
--- a/dfget/core/api/supernode_api.go
+++ b/dfget/core/api/supernode_api.go
@@ -37,41 +37,39 @@ const (
 // NewSupernodeAPI creates a new instance of SupernodeAPI with default value.
 func NewSupernodeAPI() SupernodeAPI {
 	return &supernodeAPI{
-		Scheme:      "http",
-		ServicePort: 8002,
-		Timeout:     5 * time.Second,
-		HTTPClient:  util.DefaultHTTPClient,
+		Scheme:     "http",
+		Timeout:    5 * time.Second,
+		HTTPClient: util.DefaultHTTPClient,
 	}
 }
 
 // SupernodeAPI defines the communication methods between supernode and dfget.
 type SupernodeAPI interface {
-	Register(ip string, req *types.RegisterRequest) (resp *types.RegisterResponse, e error)
-	PullPieceTask(ip string, req *types.PullPieceTaskRequest) (resp *types.PullPieceTaskResponse, e error)
-	ReportPiece(ip string, req *types.ReportPieceRequest) (resp *types.BaseResponse, e error)
-	ServiceDown(ip string, taskID string, cid string) (resp *types.BaseResponse, e error)
-	ReportClientError(ip string, req *types.ClientErrorRequest) (resp *types.BaseResponse, e error)
+	Register(node string, req *types.RegisterRequest) (resp *types.RegisterResponse, e error)
+	PullPieceTask(node string, req *types.PullPieceTaskRequest) (resp *types.PullPieceTaskResponse, e error)
+	ReportPiece(node string, req *types.ReportPieceRequest) (resp *types.BaseResponse, e error)
+	ServiceDown(node string, taskID string, cid string) (resp *types.BaseResponse, e error)
+	ReportClientError(node string, req *types.ClientErrorRequest) (resp *types.BaseResponse, e error)
 }
 
 type supernodeAPI struct {
-	Scheme      string
-	ServicePort int
-	Timeout     time.Duration
-	HTTPClient  util.SimpleHTTPClient
+	Scheme     string
+	Timeout    time.Duration
+	HTTPClient util.SimpleHTTPClient
 }
 
 var _ SupernodeAPI = &supernodeAPI{}
 
 // Register sends a request to the supernode to register itself as a peer
 // and create downloading task.
-func (api *supernodeAPI) Register(ip string, req *types.RegisterRequest) (
+func (api *supernodeAPI) Register(node string, req *types.RegisterRequest) (
 	resp *types.RegisterResponse, e error) {
 	var (
 		code int
 		body []byte
 	)
-	url := fmt.Sprintf("%s://%s:%d%s",
-		api.Scheme, ip, api.ServicePort, peerRegisterPath)
+	url := fmt.Sprintf("%s://%s%s",
+		api.Scheme, node, peerRegisterPath)
 	if code, body, e = api.HTTPClient.PostJSON(url, req, api.Timeout); e != nil {
 		return nil, e
 	}
@@ -85,11 +83,11 @@ func (api *supernodeAPI) Register(ip string, req *types.RegisterRequest) (
 
 // PullPieceTask pull a piece downloading task from supernode, and get a
 // response that describes from which peer to download.
-func (api *supernodeAPI) PullPieceTask(ip string, req *types.PullPieceTaskRequest) (
+func (api *supernodeAPI) PullPieceTask(node string, req *types.PullPieceTaskRequest) (
 	resp *types.PullPieceTaskResponse, e error) {
 
-	url := fmt.Sprintf("%s://%s:%d%s?%s",
-		api.Scheme, ip, api.ServicePort, peerPullPieceTaskPath, util.ParseQuery(req))
+	url := fmt.Sprintf("%s://%s%s?%s",
+		api.Scheme, node, peerPullPieceTaskPath, util.ParseQuery(req))
 
 	resp = new(types.PullPieceTaskResponse)
 	e = api.get(url, resp)
@@ -97,11 +95,11 @@ func (api *supernodeAPI) PullPieceTask(ip string, req *types.PullPieceTaskReques
 }
 
 // ReportPiece reports the status of piece downloading task to supernode.
-func (api *supernodeAPI) ReportPiece(ip string, req *types.ReportPieceRequest) (
+func (api *supernodeAPI) ReportPiece(node string, req *types.ReportPieceRequest) (
 	resp *types.BaseResponse, e error) {
 
-	url := fmt.Sprintf("%s://%s:%d%s?%s",
-		api.Scheme, ip, api.ServicePort, peerReportPiecePath, util.ParseQuery(req))
+	url := fmt.Sprintf("%s://%s%s?%s",
+		api.Scheme, node, peerReportPiecePath, util.ParseQuery(req))
 
 	resp = new(types.BaseResponse)
 	e = api.get(url, resp)
@@ -109,11 +107,11 @@ func (api *supernodeAPI) ReportPiece(ip string, req *types.ReportPieceRequest) (
 }
 
 // ServiceDown reports the status of the local peer to supernode.
-func (api *supernodeAPI) ServiceDown(ip string, taskID string, cid string) (
+func (api *supernodeAPI) ServiceDown(node string, taskID string, cid string) (
 	resp *types.BaseResponse, e error) {
 
-	url := fmt.Sprintf("%s://%s:%d%s?taskId=%s&cid=%s",
-		api.Scheme, ip, api.ServicePort, peerServiceDownPath, taskID, cid)
+	url := fmt.Sprintf("%s://%s%s?taskId=%s&cid=%s",
+		api.Scheme, node, peerServiceDownPath, taskID, cid)
 
 	resp = new(types.BaseResponse)
 	e = api.get(url, resp)
@@ -121,11 +119,11 @@ func (api *supernodeAPI) ServiceDown(ip string, taskID string, cid string) (
 }
 
 // ReportClientError reports the client error when downloading piece to supernode.
-func (api *supernodeAPI) ReportClientError(ip string, req *types.ClientErrorRequest) (
+func (api *supernodeAPI) ReportClientError(node string, req *types.ClientErrorRequest) (
 	resp *types.BaseResponse, e error) {
 
-	url := fmt.Sprintf("%s://%s:%d%s?%s",
-		api.Scheme, ip, api.ServicePort, peerClientErrorPath, util.ParseQuery(req))
+	url := fmt.Sprintf("%s://%s%s?%s",
+		api.Scheme, node, peerClientErrorPath, util.ParseQuery(req))
 
 	resp = new(types.BaseResponse)
 	e = api.get(url, resp)
diff --git a/dfget/core/core.go b/dfget/core/core.go
index 58cf47811..3fd7b05d7 100644
--- a/dfget/core/core.go
+++ b/dfget/core/core.go
@@ -24,8 +24,6 @@ import (
 	"os"
 	"path"
 	"path/filepath"
-	"strconv"
-	"strings"
 	"time"
 
 	"github.com/dragonflyoss/Dragonfly/common/constants"
@@ -250,15 +248,11 @@ func adjustSupernodeList(nodes []string) []string {
 
 func checkConnectSupernode(nodes []string) (localIP string) {
 	var (
-		e    error
-		port = 8002
+		e error
 	)
 	for _, n := range nodes {
-		nodeFields := strings.Split(n, ":")
-		if len(nodeFields) == 2 {
-			port, _ = strconv.Atoi(nodeFields[1])
-		}
-		if localIP, e = cutil.CheckConnect(nodeFields[0], port, 1000); e == nil {
+		ip, port := cutil.GetIPAndPortFromNode(n, config.DefaultSupernodePort)
+		if localIP, e = cutil.CheckConnect(ip, port, 1000); e == nil {
 			return localIP
 		}
 		logrus.Errorf("Connect to node:%s error: %v", n, e)
diff --git a/dfget/core/regist/register.go b/dfget/core/regist/register.go
index e31c8faeb..f39f8d668 100644
--- a/dfget/core/regist/register.go
+++ b/dfget/core/regist/register.go
@@ -64,7 +64,7 @@ func (s *supernodeRegister) Register(peerPort int) (*RegisterResult, *errors.DfE
 	nodes, nLen := s.cfg.Node, len(s.cfg.Node)
 	req := s.constructRegisterRequest(peerPort)
 	for i = 0; i < nLen; i++ {
-		req.SupernodeIP = nodes[i]
+		req.SupernodeIP = util.ExtractHost(nodes[i])
 		resp, e = s.api.Register(nodes[i], req)
 		logrus.Infof("do register to %s, res:%s error:%v", nodes[i], resp, e)
 		if e != nil {
diff --git a/test/cli_dfget_p2p_test.go b/test/cli_dfget_p2p_test.go
index cf3b10442..06f5e0766 100644
--- a/test/cli_dfget_p2p_test.go
+++ b/test/cli_dfget_p2p_test.go
@@ -24,6 +24,7 @@ import (
 	"github.com/go-check/check"
 
 	"github.com/dragonflyoss/Dragonfly/test/command"
+	"github.com/dragonflyoss/Dragonfly/test/environment"
 )
 
 func init() {
@@ -52,6 +53,7 @@ func (s *DFGetP2PTestSuite) TestDownload(c *check.C) {
 	cmd, err := s.starter.DFGet(5*time.Second,
 		"-u", "https://lowzj.com",
 		"-o", Join(s.starter.Home, "a.test"),
+		"--node", fmt.Sprintf("127.0.0.1:%d", environment.SupernodeListenPort),
 		"--notbs")
 	cmd.Wait()
 
diff --git a/test/environment/env.go b/test/environment/env.go
index be7d86948..33f7a3c3c 100644
--- a/test/environment/env.go
+++ b/test/environment/env.go
@@ -12,7 +12,7 @@ var UseJavaVersion bool
 
 var (
 	// SupernodeListenPort is the port that supernode will listen.
-	SupernodeListenPort = 8002
+	SupernodeListenPort = 8008
 
 	// DragonflySupernodeBinary is default binary
 	DragonflySupernodeBinary = "/usr/local/bin/supernode"