diff --git a/adapter/outbound/reject.go b/adapter/outbound/reject.go
index 43833238c..a469ed2a7 100644
--- a/adapter/outbound/reject.go
+++ b/adapter/outbound/reject.go
@@ -6,6 +6,7 @@ import (
 	"net"
 	"time"
 
+	"github.com/Dreamacro/clash/common/buf"
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
 )
@@ -16,12 +17,12 @@ type Reject struct {
 
 // DialContext implements C.ProxyAdapter
 func (r *Reject) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.Conn, error) {
-	return NewConn(&nopConn{}, r), nil
+	return NewConn(nopConn{}, r), nil
 }
 
 // ListenPacketContext implements C.ProxyAdapter
 func (r *Reject) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
-	return newPacketConn(&nopPacketConn{}, r), nil
+	return newPacketConn(nopPacketConn{}, r), nil
 }
 
 func NewReject() *Reject {
@@ -48,27 +49,37 @@ func NewPass() *Reject {
 
 type nopConn struct{}
 
-func (rw *nopConn) Read(b []byte) (int, error) {
+func (rw nopConn) Read(b []byte) (int, error) {
 	return 0, io.EOF
 }
 
-func (rw *nopConn) Write(b []byte) (int, error) {
+func (rw nopConn) ReadBuffer(buffer *buf.Buffer) error {
+	return io.EOF
+}
+
+func (rw nopConn) Write(b []byte) (int, error) {
 	return 0, io.EOF
 }
 
-func (rw *nopConn) Close() error                     { return nil }
-func (rw *nopConn) LocalAddr() net.Addr              { return nil }
-func (rw *nopConn) RemoteAddr() net.Addr             { return nil }
-func (rw *nopConn) SetDeadline(time.Time) error      { return nil }
-func (rw *nopConn) SetReadDeadline(time.Time) error  { return nil }
-func (rw *nopConn) SetWriteDeadline(time.Time) error { return nil }
+func (rw nopConn) WriteBuffer(buffer *buf.Buffer) error {
+	return io.EOF
+}
+
+func (rw nopConn) Close() error                     { return nil }
+func (rw nopConn) LocalAddr() net.Addr              { return nil }
+func (rw nopConn) RemoteAddr() net.Addr             { return nil }
+func (rw nopConn) SetDeadline(time.Time) error      { return nil }
+func (rw nopConn) SetReadDeadline(time.Time) error  { return nil }
+func (rw nopConn) SetWriteDeadline(time.Time) error { return nil }
+
+var udpAddrIPv4Unspecified = &net.UDPAddr{IP: net.IPv4zero, Port: 0}
 
 type nopPacketConn struct{}
 
-func (npc *nopPacketConn) WriteTo(b []byte, addr net.Addr) (n int, err error) { return len(b), nil }
-func (npc *nopPacketConn) ReadFrom(b []byte) (int, net.Addr, error)           { return 0, nil, io.EOF }
-func (npc *nopPacketConn) Close() error                                       { return nil }
-func (npc *nopPacketConn) LocalAddr() net.Addr                                { return &net.UDPAddr{IP: net.IPv4zero, Port: 0} }
-func (npc *nopPacketConn) SetDeadline(time.Time) error                        { return nil }
-func (npc *nopPacketConn) SetReadDeadline(time.Time) error                    { return nil }
-func (npc *nopPacketConn) SetWriteDeadline(time.Time) error                   { return nil }
+func (npc nopPacketConn) WriteTo(b []byte, addr net.Addr) (n int, err error) { return len(b), nil }
+func (npc nopPacketConn) ReadFrom(b []byte) (int, net.Addr, error)           { return 0, nil, io.EOF }
+func (npc nopPacketConn) Close() error                                       { return nil }
+func (npc nopPacketConn) LocalAddr() net.Addr                                { return udpAddrIPv4Unspecified }
+func (npc nopPacketConn) SetDeadline(time.Time) error                        { return nil }
+func (npc nopPacketConn) SetReadDeadline(time.Time) error                    { return nil }
+func (npc nopPacketConn) SetWriteDeadline(time.Time) error                   { return nil }