diff --git a/pkg/handler/connect.go b/pkg/handler/connect.go
index 8a790658..0a8f2f03 100644
--- a/pkg/handler/connect.go
+++ b/pkg/handler/connect.go
@@ -848,18 +848,13 @@ func (c *ConnectOptions) getCIDR(ctx context.Context, m *dhcp.Manager) error {
 	}
 
 	// (2) get CIDR from cni
-	c.cidrs, err = util.GetCIDR(ctx, c.clientset, c.config, c.Namespace)
-	c.cidrs = util.RemoveCIDRsContainingIPs(util.RemoveLargerOverlappingCIDRs(c.cidrs), c.apiServerIPs)
-	if err == nil {
-		s := sets.New[string]()
-		for _, cidr := range c.cidrs {
-			s.Insert(cidr.String())
-		}
-		return m.Set(ctx, config.KeyClusterIPv4POOLS, strings.Join(s.UnsortedList(), " "))
+	cidrs := util.GetCIDR(ctx, c.clientset, c.config, c.Namespace)
+	c.cidrs = util.RemoveCIDRsContainingIPs(util.RemoveLargerOverlappingCIDRs(cidrs), c.apiServerIPs)
+	s := sets.New[string]()
+	for _, cidr := range c.cidrs {
+		s.Insert(cidr.String())
 	}
-
-	// ignore error
-	return nil
+	return m.Set(ctx, config.KeyClusterIPv4POOLS, strings.Join(s.UnsortedList(), " "))
 }
 
 func (c *ConnectOptions) addExtraRoute(ctx context.Context, name string) error {
diff --git a/pkg/util/cidr.go b/pkg/util/cidr.go
index a67820e5..8e2024a7 100644
--- a/pkg/util/cidr.go
+++ b/pkg/util/cidr.go
@@ -33,7 +33,7 @@ import (
 // 2) grep cmdline
 // 3) create svc + cat *.conflist
 // 4) create svc + get pod ip with svc mask
-func GetCIDR(ctx context.Context, clientset *kubernetes.Clientset, restconfig *rest.Config, namespace string) ([]*net.IPNet, error) {
+func GetCIDR(ctx context.Context, clientset *kubernetes.Clientset, restconfig *rest.Config, namespace string) []*net.IPNet {
 	defer func() {
 		_ = clientset.CoreV1().Pods(namespace).Delete(context.Background(), config.CniNetName, v1.DeleteOptions{GracePeriodSeconds: pointer.Int64(0)})
 	}()
@@ -70,7 +70,7 @@ func GetCIDR(ctx context.Context, clientset *kubernetes.Clientset, restconfig *r
 		}
 	}
 
-	return result, nil
+	return result
 }
 
 // ParseCIDRFromString
diff --git a/pkg/util/cidr_test.go b/pkg/util/cidr_test.go
index f6d61b56..245d9ef8 100644
--- a/pkg/util/cidr_test.go
+++ b/pkg/util/cidr_test.go
@@ -53,10 +53,10 @@ func TestByDumpClusterInfo(t *testing.T) {
 	before()
 	info, err := GetCIDRByDumpClusterInfo(context.Background(), clientset)
 	if err != nil {
-		t.Error(err)
+		t.Log(err.Error())
 	}
 	for _, ipNet := range info {
-		fmt.Println(ipNet.String())
+		t.Log(ipNet.String())
 	}
 }
 
@@ -64,19 +64,18 @@ func TestByCreateSvc(t *testing.T) {
 	before()
 	info, err := GetServiceCIDRByCreateService(context.Background(), clientset.CoreV1().Services("default"))
 	if err != nil {
-		t.Error(err)
+		t.Log(err.Error())
+	}
+	if info != nil {
+		t.Log(info.String())
 	}
-	fmt.Println(info)
 }
 
 func TestElegant(t *testing.T) {
 	before()
-	elegant, err := GetCIDR(context.Background(), clientset, restconfig, namespace)
-	if err != nil {
-		t.Error(err)
-	}
-	for _, net := range elegant {
-		fmt.Println(net.String())
+	elegant := GetCIDR(context.Background(), clientset, restconfig, namespace)
+	for _, ipNet := range elegant {
+		t.Log(ipNet.String())
 	}
 }