diff --git a/pkg/config.go b/pkg/config.go
deleted file mode 100644
index 46877d11..00000000
--- a/pkg/config.go
+++ /dev/null
@@ -1,62 +0,0 @@
-package pkg
-
-import (
-	"bufio"
-	"github.com/wencaiwulue/kubevpn/tun"
-	"net"
-	"os"
-	"strings"
-)
-
-func parseIP(s string, port string) (ips []string) {
-	if s == "" {
-		return
-	}
-	if port == "" {
-		port = "8080" // default port
-	}
-
-	file, err := os.Open(s)
-	if err != nil {
-		ss := strings.Split(s, ",")
-		for _, s := range ss {
-			s = strings.TrimSpace(s)
-			if s != "" {
-				// TODO: support IPv6
-				if !strings.Contains(s, ":") {
-					s = s + ":" + port
-				}
-				ips = append(ips, s)
-			}
-
-		}
-		return
-	}
-
-	scanner := bufio.NewScanner(file)
-	for scanner.Scan() {
-		line := strings.TrimSpace(scanner.Text())
-		if line == "" || strings.HasPrefix(line, "#") {
-			continue
-		}
-		if !strings.Contains(line, ":") {
-			line = line + ":" + port
-		}
-		ips = append(ips, line)
-	}
-	return
-}
-
-func parseIPRoutes(routeStringList string) (routes []tun.IPRoute) {
-	if len(routeStringList) == 0 {
-		return
-	}
-
-	ss := strings.Split(routeStringList, ",")
-	for _, s := range ss {
-		if _, inet, _ := net.ParseCIDR(strings.TrimSpace(s)); inet != nil {
-			routes = append(routes, tun.IPRoute{Dest: inet})
-		}
-	}
-	return
-}
diff --git a/pkg/route.go b/pkg/route.go
index ff9af11a..d21e0b25 100644
--- a/pkg/route.go
+++ b/pkg/route.go
@@ -7,6 +7,7 @@ import (
 	"github.com/wencaiwulue/kubevpn/core"
 	"github.com/wencaiwulue/kubevpn/tun"
 	"net"
+	"strings"
 )
 
 type route struct {
@@ -130,3 +131,17 @@ func (r *router) Close() error {
 	}
 	return r.server.Close()
 }
+
+func parseIPRoutes(routeStringList string) (routes []tun.IPRoute) {
+	if len(routeStringList) == 0 {
+		return
+	}
+
+	ss := strings.Split(routeStringList, ",")
+	for _, s := range ss {
+		if _, inet, _ := net.ParseCIDR(strings.TrimSpace(s)); inet != nil {
+			routes = append(routes, tun.IPRoute{Dest: inet})
+		}
+	}
+	return
+}