diff --git a/transport/internet/config.pb.go b/transport/internet/config.pb.go
index 98e408e9..2cd58fe1 100644
--- a/transport/internet/config.pb.go
+++ b/transport/internet/config.pb.go
@@ -152,9 +152,9 @@ type TransportConfig struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// Type of network that this settings supports.
+	// Transport protocol name.
 	ProtocolName string `protobuf:"bytes,3,opt,name=protocol_name,json=protocolName,proto3" json:"protocol_name,omitempty"`
-	// Specific settings. Must be of the transports.
+	// Specific transport protocol settings.
 	Settings *serial.TypedMessage `protobuf:"bytes,2,opt,name=settings,proto3" json:"settings,omitempty"`
 }
 
@@ -214,7 +214,7 @@ type StreamConfig struct {
 	TransportSettings []*TransportConfig `protobuf:"bytes,2,rep,name=transport_settings,json=transportSettings,proto3" json:"transport_settings,omitempty"`
 	// Type of security. Must be a message name of the settings proto.
 	SecurityType string `protobuf:"bytes,3,opt,name=security_type,json=securityType,proto3" json:"security_type,omitempty"`
-	// Settings for transport security. For now the only choice is TLS.
+	// Transport security settings. They can be either TLS or REALITY.
 	SecuritySettings []*serial.TypedMessage `protobuf:"bytes,4,rep,name=security_settings,json=securitySettings,proto3" json:"security_settings,omitempty"`
 	SocketSettings   *SocketConfig          `protobuf:"bytes,6,opt,name=socket_settings,json=socketSettings,proto3" json:"socket_settings,omitempty"`
 }
diff --git a/transport/internet/config.proto b/transport/internet/config.proto
index 008e33c6..61812644 100644
--- a/transport/internet/config.proto
+++ b/transport/internet/config.proto
@@ -24,10 +24,10 @@ enum DomainStrategy {
 }
 
 message TransportConfig {
-  // Type of network that this settings supports.
+  // Transport protocol name.
   string protocol_name = 3;
 
-  // Specific settings. Must be of the transports.
+  // Specific transport protocol settings.
   xray.common.serial.TypedMessage settings = 2;
 }
 
@@ -43,7 +43,7 @@ message StreamConfig {
   // Type of security. Must be a message name of the settings proto.
   string security_type = 3;
 
-  // Settings for transport security. For now the only choice is TLS.
+  // Transport security settings. They can be either TLS or REALITY.
   repeated xray.common.serial.TypedMessage security_settings = 4;
 
   SocketConfig socket_settings = 6;
diff --git a/transport/internet/kcp/config.pb.go b/transport/internet/kcp/config.pb.go
index 0d2a9697..506a2dcd 100644
--- a/transport/internet/kcp/config.pb.go
+++ b/transport/internet/kcp/config.pb.go
@@ -342,7 +342,9 @@ func (x *ConnectionReuse) GetEnable() bool {
 	return false
 }
 
-// Maximum Transmission Unit, in bytes.
+// Pre-shared secret between client and server. It is used for traffic obfuscation.
+// Note that if seed is absent in the config, the traffic will still be obfuscated,
+// but by a predefined algorithm.
 type EncryptionSeed struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
diff --git a/transport/internet/kcp/config.proto b/transport/internet/kcp/config.proto
index a9806e6f..8690f09f 100644
--- a/transport/internet/kcp/config.proto
+++ b/transport/internet/kcp/config.proto
@@ -42,7 +42,9 @@ message ConnectionReuse {
   bool enable = 1;
 }
 
-// Maximum Transmission Unit, in bytes.
+// Pre-shared secret between client and server. It is used for traffic obfuscation.
+// Note that if seed is absent in the config, the traffic will still be obfuscated,
+// but by a predefined algorithm.
 message EncryptionSeed {
   string seed = 1;
 }