diff --git a/proxy/blackhole/blackhole.go b/proxy/blackhole/blackhole.go
index 494728644..58796e0e0 100644
--- a/proxy/blackhole/blackhole.go
+++ b/proxy/blackhole/blackhole.go
@@ -13,14 +13,18 @@ import (
 // BlackHole is an outbound connection that sliently swallow the entire payload.
 type BlackHole struct {
 	meta     *proxy.OutboundHandlerMeta
-	response Response
+	response ResponseConfig
 }
 
-func NewBlackHole(space app.Space, config *Config, meta *proxy.OutboundHandlerMeta) *BlackHole {
+func NewBlackHole(space app.Space, config *Config, meta *proxy.OutboundHandlerMeta) (*BlackHole, error) {
+	response, err := config.Response.GetInternalResponse()
+	if err != nil {
+		return nil, err
+	}
 	return &BlackHole{
 		meta:     meta,
-		response: config.Response,
-	}
+		response: response,
+	}, nil
 }
 
 func (this *BlackHole) Dispatch(destination v2net.Destination, payload *alloc.Buffer, ray ray.OutboundRay) error {
@@ -41,7 +45,7 @@ func (this *Factory) StreamCapability() internet.StreamConnectionType {
 }
 
 func (this *Factory) Create(space app.Space, config interface{}, meta *proxy.OutboundHandlerMeta) (proxy.OutboundHandler, error) {
-	return NewBlackHole(space, config.(*Config), meta), nil
+	return NewBlackHole(space, config.(*Config), meta)
 }
 
 func init() {
diff --git a/proxy/blackhole/config.go b/proxy/blackhole/config.go
index 09f959424..91f476c3d 100644
--- a/proxy/blackhole/config.go
+++ b/proxy/blackhole/config.go
@@ -3,23 +3,14 @@ package blackhole
 import (
 	"v2ray.com/core/common/alloc"
 	v2io "v2ray.com/core/common/io"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/ptypes"
+	"github.com/golang/protobuf/ptypes/any"
+	"strings"
+	"v2ray.com/core/common/loader"
 )
 
-type Config struct {
-	Response Response
-}
-
-type Response interface {
-	WriteTo(v2io.Writer)
-}
-
-type NoneResponse struct{}
-
-func (this *NoneResponse) WriteTo(writer v2io.Writer) {}
-
-type HTTPResponse struct {
-}
-
 const (
 	http403response = `HTTP/1.1 403 Forbidden
 Connection: close
@@ -30,6 +21,51 @@ Content-Length: 0
 `
 )
 
+type ResponseConfig interface {
+	AsAny() *any.Any
+	WriteTo(v2io.Writer)
+}
+
+func (this *NoneResponse) WriteTo(v2io.Writer) {}
+
+func (this *NoneResponse) AsAny() *any.Any {
+	r, _ := ptypes.MarshalAny(this)
+	return r
+}
+
 func (this *HTTPResponse) WriteTo(writer v2io.Writer) {
 	writer.Write(alloc.NewLocalBuffer(512).Clear().AppendString(http403response))
 }
+
+func (this *HTTPResponse) AsAny() *any.Any {
+	r, _ := ptypes.MarshalAny(this)
+	return r
+}
+
+func (this *Response) GetInternalResponse() (ResponseConfig, error) {
+	if this == nil {
+		return new(NoneResponse), nil
+	}
+
+	var r ResponseConfig
+	switch this.Type {
+	case Response_None:
+		r = new(NoneResponse)
+	case Response_HTTP:
+		r = new(HTTPResponse)
+	}
+	err := ptypes.UnmarshalAny(this.Settings, r.(proto.Message))
+	if err != nil {
+		return nil, err
+	}
+	return r, nil
+}
+
+var (
+	cache = loader.ConfigCreatorCache{}
+)
+
+func init() {
+	cache.RegisterCreator(strings.ToLower(Response_Type_name[int32(Response_None)]), func() interface{} { return new(NoneResponse) })
+	cache.RegisterCreator(strings.ToLower(Response_Type_name[int32(Response_HTTP)]), func() interface{} { return new(HTTPResponse) })
+}
diff --git a/proxy/blackhole/config.pb.go b/proxy/blackhole/config.pb.go
new file mode 100644
index 000000000..ca92fcfac
--- /dev/null
+++ b/proxy/blackhole/config.pb.go
@@ -0,0 +1,133 @@
+// Code generated by protoc-gen-go.
+// source: v2ray.com/core/proxy/blackhole/config.proto
+// DO NOT EDIT!
+
+/*
+Package blackhole is a generated protocol buffer package.
+
+It is generated from these files:
+	v2ray.com/core/proxy/blackhole/config.proto
+
+It has these top-level messages:
+	NoneResponse
+	HTTPResponse
+	Response
+	Config
+*/
+package blackhole
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+import google_protobuf "github.com/golang/protobuf/ptypes/any"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type Response_Type int32
+
+const (
+	Response_None Response_Type = 0
+	Response_HTTP Response_Type = 1
+)
+
+var Response_Type_name = map[int32]string{
+	0: "None",
+	1: "HTTP",
+}
+var Response_Type_value = map[string]int32{
+	"None": 0,
+	"HTTP": 1,
+}
+
+func (x Response_Type) String() string {
+	return proto.EnumName(Response_Type_name, int32(x))
+}
+func (Response_Type) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{2, 0} }
+
+type NoneResponse struct {
+}
+
+func (m *NoneResponse) Reset()                    { *m = NoneResponse{} }
+func (m *NoneResponse) String() string            { return proto.CompactTextString(m) }
+func (*NoneResponse) ProtoMessage()               {}
+func (*NoneResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+type HTTPResponse struct {
+}
+
+func (m *HTTPResponse) Reset()                    { *m = HTTPResponse{} }
+func (m *HTTPResponse) String() string            { return proto.CompactTextString(m) }
+func (*HTTPResponse) ProtoMessage()               {}
+func (*HTTPResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+type Response struct {
+	Type     Response_Type        `protobuf:"varint,1,opt,name=type,enum=com.v2ray.core.proxy.blackhole.Response_Type" json:"type,omitempty"`
+	Settings *google_protobuf.Any `protobuf:"bytes,2,opt,name=settings" json:"settings,omitempty"`
+}
+
+func (m *Response) Reset()                    { *m = Response{} }
+func (m *Response) String() string            { return proto.CompactTextString(m) }
+func (*Response) ProtoMessage()               {}
+func (*Response) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+func (m *Response) GetSettings() *google_protobuf.Any {
+	if m != nil {
+		return m.Settings
+	}
+	return nil
+}
+
+type Config struct {
+	Response *Response `protobuf:"bytes,1,opt,name=response" json:"response,omitempty"`
+}
+
+func (m *Config) Reset()                    { *m = Config{} }
+func (m *Config) String() string            { return proto.CompactTextString(m) }
+func (*Config) ProtoMessage()               {}
+func (*Config) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
+
+func (m *Config) GetResponse() *Response {
+	if m != nil {
+		return m.Response
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*NoneResponse)(nil), "com.v2ray.core.proxy.blackhole.NoneResponse")
+	proto.RegisterType((*HTTPResponse)(nil), "com.v2ray.core.proxy.blackhole.HTTPResponse")
+	proto.RegisterType((*Response)(nil), "com.v2ray.core.proxy.blackhole.Response")
+	proto.RegisterType((*Config)(nil), "com.v2ray.core.proxy.blackhole.Config")
+	proto.RegisterEnum("com.v2ray.core.proxy.blackhole.Response_Type", Response_Type_name, Response_Type_value)
+}
+
+func init() { proto.RegisterFile("v2ray.com/core/proxy/blackhole/config.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 249 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x8c, 0x90, 0x41, 0x4b, 0xc3, 0x30,
+	0x18, 0x86, 0xad, 0x94, 0x51, 0x53, 0x19, 0x23, 0x78, 0x98, 0x3b, 0xc8, 0xe8, 0xa9, 0x20, 0x7e,
+	0x91, 0xfa, 0x0b, 0xa6, 0x1e, 0x3c, 0x0d, 0x29, 0x3d, 0x79, 0x6b, 0xc3, 0xb7, 0x3a, 0xec, 0xf2,
+	0x85, 0x34, 0x8a, 0xf9, 0x2d, 0xfe, 0x59, 0x49, 0x66, 0x73, 0x94, 0xdd, 0xf2, 0x92, 0xf7, 0xc9,
+	0xfb, 0x10, 0x76, 0xfb, 0x55, 0x99, 0xd6, 0x81, 0xa4, 0x83, 0x90, 0x64, 0x50, 0x68, 0x43, 0xdf,
+	0x4e, 0x74, 0x43, 0x2b, 0x3f, 0xde, 0x69, 0x40, 0x21, 0x49, 0xed, 0xf6, 0x3d, 0x68, 0x43, 0x96,
+	0xf8, 0x8d, 0xa4, 0x03, 0x4c, 0x80, 0x41, 0x08, 0x65, 0x88, 0xe5, 0xd5, 0x75, 0x4f, 0xd4, 0x0f,
+	0xe1, 0x11, 0x4b, 0xdd, 0xe7, 0x4e, 0xb4, 0xca, 0x1d, 0xd1, 0x62, 0xce, 0x2e, 0xb7, 0xa4, 0xb0,
+	0xc6, 0x51, 0x93, 0x1a, 0xd1, 0xe7, 0x97, 0xa6, 0x79, 0x8d, 0xf9, 0x27, 0x61, 0xd9, 0x14, 0xf8,
+	0x86, 0xa5, 0xd6, 0x69, 0x5c, 0x26, 0xeb, 0xa4, 0x9c, 0x57, 0x77, 0xf0, 0xff, 0x2c, 0x4c, 0x1c,
+	0x34, 0x4e, 0x63, 0x1d, 0x50, 0x7e, 0xcf, 0xb2, 0x11, 0xad, 0xdd, 0xab, 0x7e, 0x5c, 0x9e, 0xaf,
+	0x93, 0x32, 0xaf, 0xae, 0xe0, 0x68, 0x07, 0x93, 0x1d, 0x6c, 0x94, 0xab, 0x63, 0xab, 0x58, 0xb1,
+	0xd4, 0xf3, 0x3c, 0x63, 0xa9, 0x37, 0x5d, 0x9c, 0xf9, 0x93, 0x77, 0x5c, 0x24, 0xc5, 0x96, 0xcd,
+	0x9e, 0xc2, 0x47, 0xf0, 0x67, 0x96, 0x99, 0xbf, 0xb9, 0xa0, 0x97, 0x57, 0xe5, 0xa9, 0x7a, 0x75,
+	0x24, 0x1f, 0xf3, 0xb7, 0x8b, 0x78, 0xdf, 0xcd, 0x82, 0xd0, 0xc3, 0x6f, 0x00, 0x00, 0x00, 0xff,
+	0xff, 0x09, 0xa5, 0x68, 0x2e, 0x8b, 0x01, 0x00, 0x00,
+}
diff --git a/proxy/blackhole/config.proto b/proxy/blackhole/config.proto
new file mode 100644
index 000000000..68fdd8bbb
--- /dev/null
+++ b/proxy/blackhole/config.proto
@@ -0,0 +1,27 @@
+syntax = "proto3";
+
+package com.v2ray.core.proxy.blackhole;
+option go_package = "blackhole";
+
+import "google/protobuf/any.proto";
+
+message NoneResponse {
+
+}
+
+message HTTPResponse {
+
+}
+
+message Response {
+  enum Type {
+    None = 0;
+    HTTP = 1;
+  }
+  Type type = 1;
+  google.protobuf.Any settings = 2;
+}
+
+message Config {
+  Response response = 1;
+}
diff --git a/proxy/blackhole/config_json.go b/proxy/blackhole/config_json.go
index a589a31ac..224d63a26 100644
--- a/proxy/blackhole/config_json.go
+++ b/proxy/blackhole/config_json.go
@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"errors"
 
+	"strings"
 	"v2ray.com/core/common/loader"
 	"v2ray.com/core/proxy/registry"
 )
@@ -19,22 +20,28 @@ func (this *Config) UnmarshalJSON(data []byte) error {
 		return errors.New("Blackhole: Failed to parse config: " + err.Error())
 	}
 
-	this.Response = new(NoneResponse)
 	if jsonConfig.Response != nil {
-		cache := loader.ConfigCreatorCache{}
-		loader := loader.NewJSONConfigLoader(cache, "type", "")
-		cache.RegisterCreator("none", func() interface{} { return new(NoneResponse) })
-		cache.RegisterCreator("http", func() interface{} { return new(HTTPResponse) })
-		response, _, err := loader.Load(jsonConfig.Response)
+		response, rType, err := configLoader.Load(jsonConfig.Response)
 		if err != nil {
 			return errors.New("Blackhole: Failed to parse response config: " + err.Error())
 		}
-		this.Response = response.(Response)
+		this.Response = new(Response)
+		switch rType {
+		case strings.ToLower(Response_Type_name[int32(Response_None)]):
+			this.Response.Type = Response_None
+		case strings.ToLower(Response_Type_name[int32(Response_HTTP)]):
+			this.Response.Type = Response_HTTP
+		}
+		this.Response.Settings = response.(ResponseConfig).AsAny()
 	}
 
 	return nil
 }
 
+var (
+	configLoader = loader.NewJSONConfigLoader(cache, "type", "")
+)
+
 func init() {
 	registry.RegisterOutboundConfig("blackhole", func() interface{} { return new(Config) })
 }
diff --git a/proxy/blackhole/config_json_test.go b/proxy/blackhole/config_json_test.go
index 3ce18f096..57a2f11d6 100644
--- a/proxy/blackhole/config_json_test.go
+++ b/proxy/blackhole/config_json_test.go
@@ -22,6 +22,10 @@ func TestHTTPResponseJSON(t *testing.T) {
 	err := json.Unmarshal([]byte(rawJson), config)
 	assert.Error(err).IsNil()
 
-	_, ok := config.Response.(*HTTPResponse)
+	assert.Int(int(config.Response.Type)).Equals(int(Response_HTTP))
+	response, err := config.Response.GetInternalResponse()
+	assert.Error(err).IsNil()
+
+	_, ok := response.(*HTTPResponse)
 	assert.Bool(ok).IsTrue()
 }
diff --git a/transport/internet/kcp/config.pb.go b/transport/internet/kcp/config.pb.go
index a2b8745c1..367fa04b3 100644
--- a/transport/internet/kcp/config.pb.go
+++ b/transport/internet/kcp/config.pb.go
@@ -35,6 +35,7 @@ var _ = math.Inf
 // proto package needs to be updated.
 const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
 
+// Maximum Transmission Unit, in bytes.
 type MTU struct {
 	Value uint32 `protobuf:"varint,1,opt,name=value" json:"value,omitempty"`
 }
@@ -44,6 +45,7 @@ func (m *MTU) String() string            { return proto.CompactTextString(m) }
 func (*MTU) ProtoMessage()               {}
 func (*MTU) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
 
+// Transmission Time Interview, in milli-sec.
 type TTI struct {
 	Value uint32 `protobuf:"varint,1,opt,name=value" json:"value,omitempty"`
 }
@@ -53,6 +55,7 @@ func (m *TTI) String() string            { return proto.CompactTextString(m) }
 func (*TTI) ProtoMessage()               {}
 func (*TTI) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
 
+// Uplink capacity, in MB.
 type UplinkCapacity struct {
 	Value uint32 `protobuf:"varint,1,opt,name=value" json:"value,omitempty"`
 }
@@ -62,6 +65,7 @@ func (m *UplinkCapacity) String() string            { return proto.CompactTextSt
 func (*UplinkCapacity) ProtoMessage()               {}
 func (*UplinkCapacity) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
 
+// Downlink capacity, in MB.
 type DownlinkCapacity struct {
 	Value uint32 `protobuf:"varint,1,opt,name=value" json:"value,omitempty"`
 }
@@ -72,6 +76,7 @@ func (*DownlinkCapacity) ProtoMessage()               {}
 func (*DownlinkCapacity) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
 
 type WriteBuffer struct {
+	// Buffer size in bytes.
 	Size uint32 `protobuf:"varint,1,opt,name=size" json:"size,omitempty"`
 }
 
@@ -81,6 +86,7 @@ func (*WriteBuffer) ProtoMessage()               {}
 func (*WriteBuffer) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
 
 type ReadBuffer struct {
+	// Buffer size in bytes.
 	Size uint32 `protobuf:"varint,1,opt,name=size" json:"size,omitempty"`
 }