diff --git a/core/api/api.go b/core/api/api.go
index 4a79f67e5..548a365ac 100755
--- a/core/api/api.go
+++ b/core/api/api.go
@@ -208,7 +208,7 @@ func StartAPI() {
 		listenAddress = apiConfig.NetworkConfig.GetBindingAddr()
 	}
 
-	if util.ContainStr(listenAddress, "0.0.0.0") {
+	if util.ContainStr(listenAddress, util.ReservedAddress) {
 		ips := util.GetLocalIPs()
 		if len(ips) > 0 {
 			log.Infof("local ips: %v", util.JoinArray(ips, ", "))
diff --git a/core/host/process_info.go b/core/host/process_info.go
index 44359e114..45d54459c 100644
--- a/core/host/process_info.go
+++ b/core/host/process_info.go
@@ -27,6 +27,7 @@ import (
 	"bufio"
 	"bytes"
 	log "github.com/cihub/seelog"
+	"infini.sh/framework/core/util"
 	"os/exec"
 	"runtime"
 	"strconv"
@@ -113,7 +114,7 @@ func getPortByPid(pid string) []int {
 
 func getPortByPidWindows(pid string) []int {
 	//netstat -ano|findStr /V "127.0.0.1" | findStr "780"
-	cmd := []string{"netstat", "-ano", "findStr", "/V", "127.0.0.1", "findStr", pid}
+	cmd := []string{"netstat", "-ano", "findStr", "/V", util.LocalAddress, "findStr", pid}
 	var stdout bytes.Buffer
 	c1 := exec.Command(cmd[0], cmd[1])
 	c2 := exec.Command(cmd[2], cmd[3], cmd[4])
diff --git a/core/util/netutils.go b/core/util/netutils.go
index 14826590b..e94a96c84 100755
--- a/core/util/netutils.go
+++ b/core/util/netutils.go
@@ -35,6 +35,15 @@ import (
 	"time"
 )
 
+// ReservedAddress is the reserved address
+const ReservedAddress = "0.0.0.0"
+
+// LocalIpv6Address is the local ipv6 address
+const LocalIpv6Address = "0.0.0.1"
+
+// LocalAddress is the local ipv4 address
+const LocalAddress = "127.0.0.1"
+
 //Class        Starting IPAddress    Ending IP Address    # of Hosts
 //A            10.0.0.0              10.255.255.255       16,777,216
 //B            172.16.0.0            172.31.255.255       1,048,576
@@ -173,7 +182,7 @@ func GetSafetyInternalAddress(addr string) string {
 
 	if strings.Contains(addr, ":") {
 		array := strings.Split(addr, ":")
-		if array[0] == "0.0.0.0" {
+		if array[0] == ReservedAddress {
 			array[0], _ = GetIntranetIP()
 		}
 		return strings.Join(array, ":")
@@ -192,7 +201,7 @@ func GetValidAddress(addr string) string {
 	if strings.Index(addr, ":") >= 0 {
 		array := strings.Split(addr, ":")
 		if len(array[0]) == 0 {
-			array[0] = "127.0.0.1"
+			array[0] = LocalAddress
 			addr = strings.Join(array, ":")
 		}
 	}
@@ -266,11 +275,11 @@ func GetLocalIPs() []string {
 // IsLocalAddress check if the address is local address
 func IsLocalAddress(address []string, localIPs []string) bool {
 	for _, add := range address {
-		if UnifyLocalAddress(add) == LOCAL_ADDRESS {
+		if UnifyLocalAddress(add) == LocalAddress {
 			continue
 		}
 
-		if add == "0.0.0.0" {
+		if add == ReservedAddress {
 			continue
 		}
 
@@ -360,7 +369,7 @@ func ClientIP(r *http.Request) string {
 
 	if ip, _, err := net.SplitHostPort(strings.TrimSpace(r.RemoteAddr)); err == nil {
 		if ip == "::1" {
-			ip = "127.0.0.1"
+			ip = LocalAddress
 		}
 		return ip
 	}
@@ -368,16 +377,14 @@ func ClientIP(r *http.Request) string {
 	return ""
 }
 
-const LOCAL_ADDRESS = "127.0.0.1"
-
 func UnifyLocalAddress(host string) string {
 	//unify host
 	if ContainStr(host, "localhost") {
-		host = strings.Replace(host, "localhost", LOCAL_ADDRESS, -1)
+		host = strings.Replace(host, "localhost", LocalAddress, -1)
 	} else if ContainStr(host, "[::1]") {
-		host = strings.Replace(host, "[::1]", LOCAL_ADDRESS, -1)
+		host = strings.Replace(host, "[::1]", LocalAddress, -1)
 	} else if ContainStr(host, "::1") {
-		host = strings.Replace(host, "::1", LOCAL_ADDRESS, -1)
+		host = strings.Replace(host, "::1", LocalAddress, -1)
 	}
 	return host
 }
diff --git a/docs/content.en/docs/release-notes/_index.md b/docs/content.en/docs/release-notes/_index.md
index 116566317..5d931f87e 100644
--- a/docs/content.en/docs/release-notes/_index.md
+++ b/docs/content.en/docs/release-notes/_index.md
@@ -19,7 +19,7 @@ Information about release notes of INFINI Framework is provided here.
 - Add util to http handler, support to parse bool parameter
 - Handle simplified bulk metdata, parse index from url path (#59)
 - Improve handling of message read for partially loaded files (#63)
-
+- Refactor loopback address to use const (#73)
 
 ## v1.1.0 (2025-01-11)