diff --git a/infra/conf/transport_internet.go b/infra/conf/transport_internet.go
index 2c56b296..b914ac19 100644
--- a/infra/conf/transport_internet.go
+++ b/infra/conf/transport_internet.go
@@ -288,13 +288,13 @@ func (c *TLSCertConfig) Build() (*tls.Certificate, error) {
 
 type TLSConfig struct {
 	Insecure                 bool             `json:"allowInsecure"`
-	InsecureCiphers          bool             `json:"allowInsecureCiphers"`
 	Certs                    []*TLSCertConfig `json:"certificates"`
 	ServerName               string           `json:"serverName"`
 	ALPN                     *StringList      `json:"alpn"`
 	DisableSessionResumption bool             `json:"disableSessionResumption"`
 	DisableSystemRoot        bool             `json:"disableSystemRoot"`
 	MinVersion               string           `json:"minVersion"`
+	MaxVersion               string           `json:"maxVersion"`
 	CipherSuites             string           `json:"cipherSuites"`
 	PreferServerCipherSuites bool             `json:"preferServerCipherSuites"`
 }
@@ -311,19 +311,19 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 		config.Certificate[idx] = cert
 	}
 	serverName := c.ServerName
-	config.MinVersion = c.MinVersion
 	config.AllowInsecure = c.Insecure
-	config.AllowInsecureCiphers = c.InsecureCiphers
 	if len(c.ServerName) > 0 {
 		config.ServerName = serverName
 	}
 	if c.ALPN != nil && len(*c.ALPN) > 0 {
 		config.NextProtocol = []string(*c.ALPN)
 	}
-	config.CipherSuites = c.CipherSuites
-	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 	config.DisableSessionResumption = c.DisableSessionResumption
 	config.DisableSystemRoot = c.DisableSystemRoot
+	config.MinVersion = c.MinVersion
+	config.MaxVersion = c.MaxVersion
+	config.CipherSuites = c.CipherSuites
+	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 	return config, nil
 }
 
@@ -369,13 +369,13 @@ func (c *XTLSCertConfig) Build() (*xtls.Certificate, error) {
 
 type XTLSConfig struct {
 	Insecure                 bool              `json:"allowInsecure"`
-	InsecureCiphers          bool              `json:"allowInsecureCiphers"`
 	Certs                    []*XTLSCertConfig `json:"certificates"`
 	ServerName               string            `json:"serverName"`
 	ALPN                     *StringList       `json:"alpn"`
 	DisableSessionResumption bool              `json:"disableSessionResumption"`
 	DisableSystemRoot        bool              `json:"disableSystemRoot"`
 	MinVersion               string            `json:"minVersion"`
+	MaxVersion               string            `json:"maxVersion"`
 	CipherSuites             string            `json:"cipherSuites"`
 	PreferServerCipherSuites bool              `json:"preferServerCipherSuites"`
 }
@@ -393,18 +393,18 @@ func (c *XTLSConfig) Build() (proto.Message, error) {
 	}
 	serverName := c.ServerName
 	config.AllowInsecure = c.Insecure
-	config.AllowInsecureCiphers = c.InsecureCiphers
 	if len(c.ServerName) > 0 {
 		config.ServerName = serverName
 	}
 	if c.ALPN != nil && len(*c.ALPN) > 0 {
 		config.NextProtocol = []string(*c.ALPN)
 	}
-	config.MinVersion = c.MinVersion
-	config.CipherSuites = c.CipherSuites
-	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 	config.DisableSessionResumption = c.DisableSessionResumption
 	config.DisableSystemRoot = c.DisableSystemRoot
+	config.MinVersion = c.MinVersion
+	config.MaxVersion = c.MaxVersion
+	config.CipherSuites = c.CipherSuites
+	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 	return config, nil
 }
 
diff --git a/transport/internet/tls/config.go b/transport/internet/tls/config.go
index 8d8d8d54..541a1c61 100644
--- a/transport/internet/tls/config.go
+++ b/transport/internet/tls/config.go
@@ -185,29 +185,17 @@ func (c *Config) GetTLSConfig(opts ...Option) *tls.Config {
 	}
 
 	config := &tls.Config{
-		ClientSessionCache:       globalSessionCache,
-		RootCAs:                  root,
-		InsecureSkipVerify:       c.AllowInsecure,
-		NextProtos:               c.NextProtocol,
-		SessionTicketsDisabled:   c.DisableSessionResumption,
-		PreferServerCipherSuites: c.PreferServerCipherSuites,
+		ClientSessionCache:     globalSessionCache,
+		RootCAs:                root,
+		InsecureSkipVerify:     c.AllowInsecure,
+		NextProtos:             c.NextProtocol,
+		SessionTicketsDisabled: c.DisableSessionResumption,
 	}
 
 	for _, opt := range opts {
 		opt(config)
 	}
 
-	switch c.MinVersion {
-	case "1.0":
-		config.MinVersion = tls.VersionTLS10
-	case "1.1":
-		config.MinVersion = tls.VersionTLS11
-	case "1.2":
-		config.MinVersion = tls.VersionTLS12
-	case "1.3":
-		config.MinVersion = tls.VersionTLS13
-	}
-
 	config.Certificates = c.BuildCertificates()
 	config.BuildNameToCertificate()
 
@@ -224,8 +212,30 @@ func (c *Config) GetTLSConfig(opts ...Option) *tls.Config {
 		config.NextProtos = []string{"h2", "http/1.1"}
 	}
 
+	switch c.MinVersion {
+	case "1.0":
+		config.MinVersion = tls.VersionTLS10
+	case "1.1":
+		config.MinVersion = tls.VersionTLS11
+	case "1.2":
+		config.MinVersion = tls.VersionTLS12
+	case "1.3":
+		config.MinVersion = tls.VersionTLS13
+	}
+
+	switch c.MaxVersion {
+	case "1.0":
+		config.MaxVersion = tls.VersionTLS10
+	case "1.1":
+		config.MaxVersion = tls.VersionTLS11
+	case "1.2":
+		config.MaxVersion = tls.VersionTLS12
+	case "1.3":
+		config.MaxVersion = tls.VersionTLS13
+	}
+
 	var cipherSuites []uint16
-	if c.PreferServerCipherSuites && len(c.CipherSuites) > 0 {
+	if len(c.CipherSuites) > 0 {
 		cipherSuitesArray := strings.Split(c.CipherSuites, ":")
 		if len(cipherSuitesArray) > 0 {
 			all := tls.CipherSuites()
@@ -233,12 +243,14 @@ func (c *Config) GetTLSConfig(opts ...Option) *tls.Config {
 				for _, s := range all {
 					if s.Name == suite {
 						cipherSuites = append(cipherSuites, s.ID)
+						break
 					}
 				}
 			}
 		}
 	}
 	config.CipherSuites = cipherSuites
+	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 
 	return config
 }
diff --git a/transport/internet/tls/config.pb.go b/transport/internet/tls/config.pb.go
index 700a7cff..56411b0e 100644
--- a/transport/internet/tls/config.pb.go
+++ b/transport/internet/tls/config.pb.go
@@ -146,8 +146,6 @@ type Config struct {
 
 	// Whether or not to allow self-signed certificates.
 	AllowInsecure bool `protobuf:"varint,1,opt,name=allow_insecure,json=allowInsecure,proto3" json:"allow_insecure,omitempty"`
-	// Whether or not to allow insecure cipher suites.
-	AllowInsecureCiphers bool `protobuf:"varint,5,opt,name=allow_insecure_ciphers,json=allowInsecureCiphers,proto3" json:"allow_insecure_ciphers,omitempty"`
 	// List of certificates to be served on server.
 	Certificate []*Certificate `protobuf:"bytes,2,rep,name=certificate,proto3" json:"certificate,omitempty"`
 	// Override server name.
@@ -155,15 +153,17 @@ type Config struct {
 	// Lists of string as ALPN values.
 	NextProtocol []string `protobuf:"bytes,4,rep,name=next_protocol,json=nextProtocol,proto3" json:"next_protocol,omitempty"`
 	// Whether or not to disable session (ticket) resumption.
-	DisableSessionResumption bool `protobuf:"varint,6,opt,name=disable_session_resumption,json=disableSessionResumption,proto3" json:"disable_session_resumption,omitempty"`
+	DisableSessionResumption bool `protobuf:"varint,5,opt,name=disable_session_resumption,json=disableSessionResumption,proto3" json:"disable_session_resumption,omitempty"`
 	// If true, root certificates on the system will not be loaded for
 	// verification.
-	DisableSystemRoot bool `protobuf:"varint,7,opt,name=disable_system_root,json=disableSystemRoot,proto3" json:"disable_system_root,omitempty"`
+	DisableSystemRoot bool `protobuf:"varint,6,opt,name=disable_system_root,json=disableSystemRoot,proto3" json:"disable_system_root,omitempty"`
 	// The minimum TLS version.
-	MinVersion string `protobuf:"bytes,8,opt,name=min_version,json=minVersion,proto3" json:"min_version,omitempty"`
-	//The TLS cipher suites
+	MinVersion string `protobuf:"bytes,7,opt,name=min_version,json=minVersion,proto3" json:"min_version,omitempty"`
+	// The maximum TLS version.
+	MaxVersion string `protobuf:"bytes,8,opt,name=max_version,json=maxVersion,proto3" json:"max_version,omitempty"`
+	// Specify cipher suites, except for TLS 1.3.
 	CipherSuites string `protobuf:"bytes,9,opt,name=cipher_suites,json=cipherSuites,proto3" json:"cipher_suites,omitempty"`
-	// If true, server selects the client's most preferred ciphersuite
+	// Whether the server selects its most preferred ciphersuite.
 	PreferServerCipherSuites bool `protobuf:"varint,10,opt,name=prefer_server_cipher_suites,json=preferServerCipherSuites,proto3" json:"prefer_server_cipher_suites,omitempty"`
 }
 
@@ -206,13 +206,6 @@ func (x *Config) GetAllowInsecure() bool {
 	return false
 }
 
-func (x *Config) GetAllowInsecureCiphers() bool {
-	if x != nil {
-		return x.AllowInsecureCiphers
-	}
-	return false
-}
-
 func (x *Config) GetCertificate() []*Certificate {
 	if x != nil {
 		return x.Certificate
@@ -255,6 +248,13 @@ func (x *Config) GetMinVersion() string {
 	return ""
 }
 
+func (x *Config) GetMaxVersion() string {
+	if x != nil {
+		return x.MaxVersion
+	}
+	return ""
+}
+
 func (x *Config) GetCipherSuites() string {
 	if x != nil {
 		return x.CipherSuites
@@ -272,61 +272,61 @@ func (x *Config) GetPreferServerCipherSuites() bool {
 var File_transport_internet_tls_config_proto protoreflect.FileDescriptor
 
 var file_transport_internet_tls_config_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/transport/internet/tls/config.proto b/transport/internet/tls/config.proto
index f925c6dc..4f6f932d 100644
--- a/transport/internet/tls/config.proto
+++ b/transport/internet/tls/config.proto
@@ -26,9 +26,6 @@ message Config {
   // Whether or not to allow self-signed certificates.
   bool allow_insecure = 1;
 
-  // Whether or not to allow insecure cipher suites.
-  bool allow_insecure_ciphers = 5;
-
   // List of certificates to be served on server.
   repeated Certificate certificate = 2;
 
@@ -39,18 +36,21 @@ message Config {
   repeated string next_protocol = 4;
 
   // Whether or not to disable session (ticket) resumption.
-  bool disable_session_resumption = 6;
+  bool disable_session_resumption = 5;
 
   // If true, root certificates on the system will not be loaded for
   // verification.
-  bool disable_system_root = 7;
+  bool disable_system_root = 6;
 
   // The minimum TLS version.
-  string min_version = 8;
+  string min_version = 7;
 
-  //The TLS cipher suites
+  // The maximum TLS version.
+  string max_version = 8;
+
+  // Specify cipher suites, except for TLS 1.3.
   string cipher_suites = 9;
 
-  // If true, server selects the client's most preferred ciphersuite
+  // Whether the server selects its most preferred ciphersuite.
   bool prefer_server_cipher_suites = 10;
 }
diff --git a/transport/internet/tls/config_test.go b/transport/internet/tls/config_test.go
index 5c8f567c..bc23add3 100644
--- a/transport/internet/tls/config_test.go
+++ b/transport/internet/tls/config_test.go
@@ -64,9 +64,7 @@ func TestExpiredCertificate(t *testing.T) {
 }
 
 func TestInsecureCertificates(t *testing.T) {
-	c := &Config{
-		AllowInsecureCiphers: true,
-	}
+	c := &Config{}
 
 	tlsConfig := c.GetTLSConfig()
 	if len(tlsConfig.CipherSuites) > 0 {
diff --git a/transport/internet/xtls/config.go b/transport/internet/xtls/config.go
index 19ab919a..2989336f 100644
--- a/transport/internet/xtls/config.go
+++ b/transport/internet/xtls/config.go
@@ -176,12 +176,11 @@ func (c *Config) GetXTLSConfig(opts ...Option) *xtls.Config {
 	}
 
 	config := &xtls.Config{
-		ClientSessionCache:       globalSessionCache,
-		RootCAs:                  root,
-		InsecureSkipVerify:       c.AllowInsecure,
-		NextProtos:               c.NextProtocol,
-		SessionTicketsDisabled:   c.DisableSessionResumption,
-		PreferServerCipherSuites: c.PreferServerCipherSuites,
+		ClientSessionCache:     globalSessionCache,
+		RootCAs:                root,
+		InsecureSkipVerify:     c.AllowInsecure,
+		NextProtos:             c.NextProtocol,
+		SessionTicketsDisabled: c.DisableSessionResumption,
 	}
 
 	for _, opt := range opts {
@@ -215,8 +214,19 @@ func (c *Config) GetXTLSConfig(opts ...Option) *xtls.Config {
 		config.MinVersion = xtls.VersionTLS13
 	}
 
+	switch c.MaxVersion {
+	case "1.0":
+		config.MaxVersion = xtls.VersionTLS10
+	case "1.1":
+		config.MaxVersion = xtls.VersionTLS11
+	case "1.2":
+		config.MaxVersion = xtls.VersionTLS12
+	case "1.3":
+		config.MaxVersion = xtls.VersionTLS13
+	}
+
 	var cipherSuites []uint16
-	if c.PreferServerCipherSuites && len(c.CipherSuites) > 0 {
+	if len(c.CipherSuites) > 0 {
 		cipherSuitesArray := strings.Split(c.CipherSuites, ":")
 		if len(cipherSuitesArray) > 0 {
 			all := xtls.CipherSuites()
@@ -224,12 +234,14 @@ func (c *Config) GetXTLSConfig(opts ...Option) *xtls.Config {
 				for _, s := range all {
 					if s.Name == suite {
 						cipherSuites = append(cipherSuites, s.ID)
+						break
 					}
 				}
 			}
 		}
 	}
 	config.CipherSuites = cipherSuites
+	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 
 	return config
 }
diff --git a/transport/internet/xtls/config.pb.go b/transport/internet/xtls/config.pb.go
index b864fcb0..d8f42a6e 100644
--- a/transport/internet/xtls/config.pb.go
+++ b/transport/internet/xtls/config.pb.go
@@ -146,8 +146,6 @@ type Config struct {
 
 	// Whether or not to allow self-signed certificates.
 	AllowInsecure bool `protobuf:"varint,1,opt,name=allow_insecure,json=allowInsecure,proto3" json:"allow_insecure,omitempty"`
-	// Whether or not to allow insecure cipher suites.
-	AllowInsecureCiphers bool `protobuf:"varint,5,opt,name=allow_insecure_ciphers,json=allowInsecureCiphers,proto3" json:"allow_insecure_ciphers,omitempty"`
 	// List of certificates to be served on server.
 	Certificate []*Certificate `protobuf:"bytes,2,rep,name=certificate,proto3" json:"certificate,omitempty"`
 	// Override server name.
@@ -155,15 +153,17 @@ type Config struct {
 	// Lists of string as ALPN values.
 	NextProtocol []string `protobuf:"bytes,4,rep,name=next_protocol,json=nextProtocol,proto3" json:"next_protocol,omitempty"`
 	// Whether or not to disable session (ticket) resumption.
-	DisableSessionResumption bool `protobuf:"varint,6,opt,name=disable_session_resumption,json=disableSessionResumption,proto3" json:"disable_session_resumption,omitempty"`
+	DisableSessionResumption bool `protobuf:"varint,5,opt,name=disable_session_resumption,json=disableSessionResumption,proto3" json:"disable_session_resumption,omitempty"`
 	// If true, root certificates on the system will not be loaded for
 	// verification.
-	DisableSystemRoot bool `protobuf:"varint,7,opt,name=disable_system_root,json=disableSystemRoot,proto3" json:"disable_system_root,omitempty"`
+	DisableSystemRoot bool `protobuf:"varint,6,opt,name=disable_system_root,json=disableSystemRoot,proto3" json:"disable_system_root,omitempty"`
 	// The minimum TLS version.
-	MinVersion string `protobuf:"bytes,8,opt,name=min_version,json=minVersion,proto3" json:"min_version,omitempty"`
-	//The TLS cipher suites
+	MinVersion string `protobuf:"bytes,7,opt,name=min_version,json=minVersion,proto3" json:"min_version,omitempty"`
+	// The maximum TLS version.
+	MaxVersion string `protobuf:"bytes,8,opt,name=max_version,json=maxVersion,proto3" json:"max_version,omitempty"`
+	// Specify cipher suites, except for TLS 1.3.
 	CipherSuites string `protobuf:"bytes,9,opt,name=cipher_suites,json=cipherSuites,proto3" json:"cipher_suites,omitempty"`
-	// If true, server selects the client's most preferred ciphersuite
+	// Whether the server selects its most preferred ciphersuite.
 	PreferServerCipherSuites bool `protobuf:"varint,10,opt,name=prefer_server_cipher_suites,json=preferServerCipherSuites,proto3" json:"prefer_server_cipher_suites,omitempty"`
 }
 
@@ -206,13 +206,6 @@ func (x *Config) GetAllowInsecure() bool {
 	return false
 }
 
-func (x *Config) GetAllowInsecureCiphers() bool {
-	if x != nil {
-		return x.AllowInsecureCiphers
-	}
-	return false
-}
-
 func (x *Config) GetCertificate() []*Certificate {
 	if x != nil {
 		return x.Certificate
@@ -255,6 +248,13 @@ func (x *Config) GetMinVersion() string {
 	return ""
 }
 
+func (x *Config) GetMaxVersion() string {
+	if x != nil {
+		return x.MaxVersion
+	}
+	return ""
+}
+
 func (x *Config) GetCipherSuites() string {
 	if x != nil {
 		return x.CipherSuites
@@ -272,61 +272,61 @@ func (x *Config) GetPreferServerCipherSuites() bool {
 var File_transport_internet_xtls_config_proto protoreflect.FileDescriptor
 
 var file_transport_internet_xtls_config_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/transport/internet/xtls/config.proto b/transport/internet/xtls/config.proto
index 215ba6d5..26671016 100644
--- a/transport/internet/xtls/config.proto
+++ b/transport/internet/xtls/config.proto
@@ -26,9 +26,6 @@ message Config {
   // Whether or not to allow self-signed certificates.
   bool allow_insecure = 1;
 
-  // Whether or not to allow insecure cipher suites.
-  bool allow_insecure_ciphers = 5;
-
   // List of certificates to be served on server.
   repeated Certificate certificate = 2;
 
@@ -39,18 +36,21 @@ message Config {
   repeated string next_protocol = 4;
 
   // Whether or not to disable session (ticket) resumption.
-  bool disable_session_resumption = 6;
+  bool disable_session_resumption = 5;
 
   // If true, root certificates on the system will not be loaded for
   // verification.
-  bool disable_system_root = 7;
+  bool disable_system_root = 6;
 
   // The minimum TLS version.
-  string min_version = 8;
+  string min_version = 7;
 
-  //The TLS cipher suites
+  // The maximum TLS version.
+  string max_version = 8;
+
+  // Specify cipher suites, except for TLS 1.3.
   string cipher_suites = 9;
 
-  // If true, server selects the client's most preferred ciphersuite
+  // Whether the server selects its most preferred ciphersuite.
   bool prefer_server_cipher_suites = 10;
 }
diff --git a/transport/internet/xtls/config_test.go b/transport/internet/xtls/config_test.go
index 8f5b5ad4..6342ba07 100644
--- a/transport/internet/xtls/config_test.go
+++ b/transport/internet/xtls/config_test.go
@@ -65,9 +65,7 @@ func TestExpiredCertificate(t *testing.T) {
 }
 
 func TestInsecureCertificates(t *testing.T) {
-	c := &Config{
-		AllowInsecureCiphers: true,
-	}
+	c := &Config{}
 
 	xtlsConfig := c.GetXTLSConfig()
 	if len(xtlsConfig.CipherSuites) > 0 {