diff --git a/src/Cedar/Cedar.h b/src/Cedar/Cedar.h
index 70be1be3..afd2882c 100644
--- a/src/Cedar/Cedar.h
+++ b/src/Cedar/Cedar.h
@@ -1108,7 +1108,7 @@ typedef struct CEDAR
 #include <Cedar/Sam.h>
 // Radius authentication module
 #include <Cedar/Radius.h>
-// Protocol
+// Native protocol
 #include <Cedar/Protocol.h>
 // Inter-HUB link
 #include <Cedar/Link.h>
@@ -1126,19 +1126,18 @@ typedef struct CEDAR
 #include <Cedar/Command.h>
 // RPC over HTTP
 #include <Cedar/Wpc.h>
-// IPsec
-#include <Cedar/IPsec.h>
-#include <Cedar/IPsec_L2TP.h>
-#include <Cedar/IPsec_PPP.h>
-#include <Cedar/IPsec_IPC.h>
-#include <Cedar/IPsec_IkePacket.h>
-#include <Cedar/IPsec_IKE.h>
-#include <Cedar/IPsec_Win7.h>
-#include <Cedar/IPsec_EtherIP.h>
-// SSTP
-#include <Cedar/Interop_SSTP.h>
-// OpenVPN
-#include <Cedar/Interop_OpenVPN.h>
+// Layer-2/Layer-3 converter
+#include <Cedar/IPC.h>
+// Third party protocols
+#include <Cedar/Proto_IPsec.h>
+#include <Cedar/Proto_EtherIP.h>
+#include <Cedar/Proto_IkePacket.h>
+#include <Cedar/Proto_IKE.h>
+#include <Cedar/Proto_L2TP.h>
+#include <Cedar/Proto_OpenVPN.h>
+#include <Cedar/Proto_PPP.h>
+#include <Cedar/Proto_SSTP.h>
+#include <Cedar/Proto_Win7.h>
 // UDP Acceleration
 #include <Cedar/UdpAccel.h>
 // DDNS Client
diff --git a/src/Cedar/Cedar.vcproj b/src/Cedar/Cedar.vcproj
index 6a306a99..1fa2ed21 100644
--- a/src/Cedar/Cedar.vcproj
+++ b/src/Cedar/Cedar.vcproj
@@ -583,77 +583,9 @@
 				>
 			</File>
 			<File
-				RelativePath=".\Interop_OpenVPN.c"
+				RelativePath=".\IPC.c"
 				>
 			</File>
-			<File
-				RelativePath=".\Interop_SSTP.c"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec.c"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_EtherIP.c"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_IKE.c"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_IkePacket.c"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_IPC.c"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_L2TP.c"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_PPP.c"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_Win7.c"
-				>
-				<FileConfiguration
-					Name="Debug|Win32"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						UsePrecompiledHeader="0"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Debug|x64"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						UsePrecompiledHeader="0"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Win32"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						UsePrecompiledHeader="0"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|x64"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						UsePrecompiledHeader="0"
-					/>
-				</FileConfiguration>
-			</File>
 			<File
 				RelativePath=".\Layer3.c"
 				>
@@ -718,6 +650,74 @@
 				RelativePath=".\NullLan.c"
 				>
 			</File>
+			<File
+				RelativePath=".\Proto_EtherIP.c"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_IKE.c"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_IkePacket.c"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_IPsec.c"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_L2TP.c"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_OpenVPN.c"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_PPP.c"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_SSTP.c"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_Win7.c"
+				>
+				<FileConfiguration
+					Name="Debug|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						UsePrecompiledHeader="0"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						UsePrecompiledHeader="0"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						UsePrecompiledHeader="0"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						UsePrecompiledHeader="0"
+					/>
+				</FileConfiguration>
+			</File>
 			<File
 				RelativePath=".\Protocol.c"
 				>
@@ -1241,47 +1241,7 @@
 				>
 			</File>
 			<File
-				RelativePath=".\Interop_OpenVPN.h"
-				>
-			</File>
-			<File
-				RelativePath=".\Interop_SSTP.h"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec.h"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_EtherIP.h"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_IKE.h"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_IkePacket.h"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_IPC.h"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_L2TP.h"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_PPP.h"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_Win7.h"
-				>
-			</File>
-			<File
-				RelativePath=".\IPsec_Win7Inner.h"
+				RelativePath=".\IPC.h"
 				>
 			</File>
 			<File
@@ -1320,6 +1280,46 @@
 				RelativePath=".\NullLan.h"
 				>
 			</File>
+			<File
+				RelativePath=".\Proto_EtherIP.h"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_IKE.h"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_IkePacket.h"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_IPsec.h"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_L2TP.h"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_OpenVPN.h"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_PPP.h"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_SSTP.h"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_Win7.h"
+				>
+			</File>
+			<File
+				RelativePath=".\Proto_Win7Inner.h"
+				>
+			</File>
 			<File
 				RelativePath=".\Protocol.h"
 				>
diff --git a/src/Cedar/IPsec_IPC.c b/src/Cedar/IPC.c
similarity index 95%
rename from src/Cedar/IPsec_IPC.c
rename to src/Cedar/IPC.c
index e855181d..384dbe12 100644
--- a/src/Cedar/IPsec_IPC.c
+++ b/src/Cedar/IPC.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// IPsec_IPC.c
+// IPC.c
 // In-process VPN client module
 
 #include "CedarPch.h"
diff --git a/src/Cedar/IPsec_IPC.h b/src/Cedar/IPC.h
similarity index 96%
rename from src/Cedar/IPsec_IPC.h
rename to src/Cedar/IPC.h
index 84dcface..4bbf5f57 100644
--- a/src/Cedar/IPsec_IPC.h
+++ b/src/Cedar/IPC.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// IPsec_IPC.h
-// Header of IPsec_IPC.c
+// IPC.h
+// Header of IPC.c
 
-#ifndef	IPSEC_IPC
-#define	IPSEC_IPC
+#ifndef	IPC_H
+#define	IPC_H
 
 // Constants
 #define	IPC_ARP_LIFETIME				(3 * 60 * 1000)
@@ -263,7 +263,4 @@ void FreeIPCAsync(IPC_ASYNC *a);
 
 bool ParseAndExtractMsChapV2InfoFromPassword(IPC_MSCHAP_V2_AUTHINFO *d, char *password);
 
-#endif	// IPSEC_IPC
-
-
-
+#endif	// IPC_H
diff --git a/src/Cedar/IPsec_EtherIP.c b/src/Cedar/Proto_EtherIP.c
similarity index 95%
rename from src/Cedar/IPsec_EtherIP.c
rename to src/Cedar/Proto_EtherIP.c
index e91bd15d..6d7b1a50 100644
--- a/src/Cedar/IPsec_EtherIP.c
+++ b/src/Cedar/Proto_EtherIP.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// IPsec_EtherIP.c
+// Proto_EtherIP.c
 // EtherIP protocol stack
 
 #include "CedarPch.h"
diff --git a/src/Cedar/IPsec_EtherIP.h b/src/Cedar/Proto_EtherIP.h
similarity index 96%
rename from src/Cedar/IPsec_EtherIP.h
rename to src/Cedar/Proto_EtherIP.h
index 3b94104a..8bdc00b6 100644
--- a/src/Cedar/IPsec_EtherIP.h
+++ b/src/Cedar/Proto_EtherIP.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// IPsec_EtherIP.h
-// Header of IPsec_EtherIP.c
+// Proto_EtherIP.h
+// Header of Proto_EtherIP.c
 
-#ifndef	IPSEC_ETHERIP_H
-#define	IPSEC_ETHERIP_H
+#ifndef	PROTO_ETHERIP_H
+#define	PROTO_ETHERIP_H
 
 //// Macro
 
@@ -171,6 +171,4 @@ void EtherIPIpcConnectThread(THREAD *t, void *p);
 UINT CalcEtherIPTcpMss(ETHERIP_SERVER *s);
 
 
-#endif	// IPSEC_ETHERIP_H
-
-
+#endif	// PROTO_ETHERIP_H
diff --git a/src/Cedar/IPsec_IKE.c b/src/Cedar/Proto_IKE.c
similarity index 96%
rename from src/Cedar/IPsec_IKE.c
rename to src/Cedar/Proto_IKE.c
index a35d8467..82f3dce7 100644
--- a/src/Cedar/IPsec_IKE.c
+++ b/src/Cedar/Proto_IKE.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// IPsec_IKE.c
+// Proto_IKE.c
 // IKE (ISAKMP) and ESP protocol stack
 
 #include "CedarPch.h"
diff --git a/src/Cedar/IPsec_IKE.h b/src/Cedar/Proto_IKE.h
similarity index 97%
rename from src/Cedar/IPsec_IKE.h
rename to src/Cedar/Proto_IKE.h
index b3ec80c7..072d6767 100644
--- a/src/Cedar/IPsec_IKE.h
+++ b/src/Cedar/Proto_IKE.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// IPsec_IKE.h
-// Header of IPsec_IKE.c
+// Proto_IKE.h
+// Header of Proto_IKE.c
 
-#ifndef	IPSEC_IKE_H
-#define	IPSEC_IKE_H
+#ifndef	PROTO_IKE_H
+#define	PROTO_IKE_H
 
 //// Macro
 
@@ -472,5 +472,5 @@ void ProcL2TPv3PacketRecv(IKE_SERVER *ike, IKE_CLIENT *c, UCHAR *data, UINT data
 
 IKE_SA *SearchIkeSaByCookie(IKE_SERVER *ike, UINT64 init_cookie, UINT64 resp_cookie);
 
-#endif	// IPSEC_IKE_H
+#endif	// PROTO_IKE_H
 
diff --git a/src/Cedar/IPsec.c b/src/Cedar/Proto_IPsec.c
similarity index 95%
rename from src/Cedar/IPsec.c
rename to src/Cedar/Proto_IPsec.c
index b9530a48..0672ff2a 100644
--- a/src/Cedar/IPsec.c
+++ b/src/Cedar/Proto_IPsec.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// IPsec.c
+// Proto_IPsec.c
 // IPsec module
 
 #include "CedarPch.h"
diff --git a/src/Cedar/IPsec.h b/src/Cedar/Proto_IPsec.h
similarity index 96%
rename from src/Cedar/IPsec.h
rename to src/Cedar/Proto_IPsec.h
index 29fde830..20b484ce 100644
--- a/src/Cedar/IPsec.h
+++ b/src/Cedar/Proto_IPsec.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// IPsec.h
-// Header of IPsec.c
+// Proto_IPsec.h
+// Header of Proto_IPsec.c
 
-#ifndef	IPSEC_H
-#define	IPSEC_H
+#ifndef	PROTO_IPSEC_H
+#define	PROTO_IPSEC_H
 
 //// Constants
 
@@ -201,5 +201,5 @@ bool IPsecCheckOsService(IPSEC_SERVER *s);
 void IPSecSetDisable(bool b);
 
 
-#endif	// IPSEC_H
+#endif	// PROTO_IPSEC_H
 
diff --git a/src/Cedar/IPsec_IkePacket.c b/src/Cedar/Proto_IkePacket.c
similarity index 95%
rename from src/Cedar/IPsec_IkePacket.c
rename to src/Cedar/Proto_IkePacket.c
index c9897847..e53cf7e5 100644
--- a/src/Cedar/IPsec_IkePacket.c
+++ b/src/Cedar/Proto_IkePacket.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// IPsec_IkePacket.c
+// Proto_IkePacket.c
 // IKE (ISAKMP) packet processing
 
 #include "CedarPch.h"
diff --git a/src/Cedar/IPsec_IkePacket.h b/src/Cedar/Proto_IkePacket.h
similarity index 96%
rename from src/Cedar/IPsec_IkePacket.h
rename to src/Cedar/Proto_IkePacket.h
index ba0bb686..4292e535 100644
--- a/src/Cedar/IPsec_IkePacket.h
+++ b/src/Cedar/Proto_IkePacket.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// IPsec_IkePacket.h
-// Header of IPsec_IkePacket.c
+// Proto_IkePacket.h
+// Header of Proto_IkePacket.c
 
-#ifndef	IPSEC_PACKET_H
-#define	IPSEC_PACKET_H
+#ifndef	PROTO_IKEPACKET_H
+#define	PROTO_IKEPACKET_H
 
 // Constants
 #ifdef	OS_WIN32
@@ -768,6 +768,4 @@ DH_CTX *IkeDhNewCtx(IKE_DH *d);
 void IkeDhFreeCtx(DH_CTX *dh);
 
 
-#endif	// IPSEC_PACKET_H
-
-
+#endif	// PROTO_IKEPACKET_H
diff --git a/src/Cedar/IPsec_L2TP.c b/src/Cedar/Proto_L2TP.c
similarity index 95%
rename from src/Cedar/IPsec_L2TP.c
rename to src/Cedar/Proto_L2TP.c
index b33471ef..2a6911a7 100644
--- a/src/Cedar/IPsec_L2TP.c
+++ b/src/Cedar/Proto_L2TP.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// IPsec_L2TP.c
+// Proto_L2TP.c
 // L2TP protocol stack
 
 #include "CedarPch.h"
diff --git a/src/Cedar/IPsec_L2TP.h b/src/Cedar/Proto_L2TP.h
similarity index 97%
rename from src/Cedar/IPsec_L2TP.h
rename to src/Cedar/Proto_L2TP.h
index ae5d20b5..c6842d10 100644
--- a/src/Cedar/IPsec_L2TP.h
+++ b/src/Cedar/Proto_L2TP.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// IPsec_L2TP.h
-// Header of IPsec_L2TP.c
+// Proto_L2TP.h
+// Header of Proto_L2TP.c
 
-#ifndef	IPSEC_L2TP_H
-#define	IPSEC_L2TP_H
+#ifndef	PROTO_L2TP_H
+#define	PROTO_L2TP_H
 
 //// Macro
 
@@ -378,6 +378,4 @@ UINT GenerateNewSessionIdForL2TPv3(L2TP_SERVER *l2tp);
 L2TP_SESSION *SearchL2TPSessionById(L2TP_SERVER *l2tp, bool is_v3, UINT id);
 void L2TPSessionManageEtherIPServer(L2TP_SERVER *l2tp, L2TP_SESSION *s);
 
-#endif	// IPSEC_L2TP_H
-
-
+#endif	// PROTO_L2TP_H
diff --git a/src/Cedar/Interop_OpenVPN.c b/src/Cedar/Proto_OpenVPN.c
similarity index 95%
rename from src/Cedar/Interop_OpenVPN.c
rename to src/Cedar/Proto_OpenVPN.c
index 9343d9d1..34f4c2c2 100644
--- a/src/Cedar/Interop_OpenVPN.c
+++ b/src/Cedar/Proto_OpenVPN.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// Interop_OpenVPN.c
+// Proto_OpenVPN.c
 // OpenVPN protocol stack
 
 #include "CedarPch.h"
diff --git a/src/Cedar/Interop_OpenVPN.h b/src/Cedar/Proto_OpenVPN.h
similarity index 96%
rename from src/Cedar/Interop_OpenVPN.h
rename to src/Cedar/Proto_OpenVPN.h
index 9899c0a0..811d0cf7 100644
--- a/src/Cedar/Interop_OpenVPN.h
+++ b/src/Cedar/Proto_OpenVPN.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// Interop_OpenVPN.h
-// Header of Interop_OpenVPN.c
+// Proto_OpenVPN.h
+// Header of Proto_OpenVPN.c
 
-#ifndef	INTEROP_OPENVPN_H
-#define	INTEROP_OPENVPN_H
+#ifndef	PROTO_OPENVPN_H
+#define	PROTO_OPENVPN_H
 
 
 //// Constants
@@ -380,6 +380,4 @@ void OpenVpnServerUdpSetDhParam(OPENVPN_SERVER_UDP *u, DH_CTX *dh);
 
 
 
-#endif	// INTEROP_OPENVPN_H
-
-
+#endif	// PROTO_OPENVPN_H
diff --git a/src/Cedar/IPsec_PPP.c b/src/Cedar/Proto_PPP.c
similarity index 95%
rename from src/Cedar/IPsec_PPP.c
rename to src/Cedar/Proto_PPP.c
index eebda7eb..9e7f0211 100644
--- a/src/Cedar/IPsec_PPP.c
+++ b/src/Cedar/Proto_PPP.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// IPsec_PPP.c
+// Proto_PPP.c
 // PPP protocol stack
 
 #include "CedarPch.h"
diff --git a/src/Cedar/IPsec_PPP.h b/src/Cedar/Proto_PPP.h
similarity index 97%
rename from src/Cedar/IPsec_PPP.h
rename to src/Cedar/Proto_PPP.h
index 66571313..578205ad 100644
--- a/src/Cedar/IPsec_PPP.h
+++ b/src/Cedar/Proto_PPP.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// IPsec_PPP.h
-// Header of IPsec_PPP.c
+// Proto_PPP.h
+// Header of Proto_PPP.c
 
-#ifndef	IPSEC_PPP_H
-#define	IPSEC_PPP_H
+#ifndef	PROTO_PPP_H
+#define	PROTO_PPP_H
 
 
 //// Macro
@@ -336,6 +336,4 @@ bool MsChapV2VerityPassword(IPC_MSCHAP_V2_AUTHINFO *d, char *password);
 char *MsChapV2DoBruteForce(IPC_MSCHAP_V2_AUTHINFO *d, LIST *password_list);
 void PPPFreeEapClient(PPP_SESSION *p);
 
-#endif	// IPSEC_PPP_H
-
-
+#endif	// PROTO_PPP_H
diff --git a/src/Cedar/Interop_SSTP.c b/src/Cedar/Proto_SSTP.c
similarity index 95%
rename from src/Cedar/Interop_SSTP.c
rename to src/Cedar/Proto_SSTP.c
index 597d234d..cbdda0df 100644
--- a/src/Cedar/Interop_SSTP.c
+++ b/src/Cedar/Proto_SSTP.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// Interop_SSTP.c
+// Proto_SSTP.c
 // SSTP (Microsoft Secure Socket Tunneling Protocol) protocol stack
 
 #include "CedarPch.h"
diff --git a/src/Cedar/Interop_SSTP.h b/src/Cedar/Proto_SSTP.h
similarity index 96%
rename from src/Cedar/Interop_SSTP.h
rename to src/Cedar/Proto_SSTP.h
index 65ee2d6e..da6b7392 100644
--- a/src/Cedar/Interop_SSTP.h
+++ b/src/Cedar/Proto_SSTP.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// Interop_SSTP.h
-// Header of Interop_SSTP.c
+// Proto_SSTP.h
+// Header of Proto_SSTP.c
 
-#ifndef	INTEROP_SSTP_H
-#define	INTEROP_SSTP_H
+#ifndef	PROTO_SSTP_H
+#define	PROTO_SSTP_H
 
 //// Constants
 #define	SSTP_URI				"/sra_{BA195980-CD49-458b-9E23-C84EE0ADCD75}/"		// SSTP HTTPS URI
@@ -259,6 +259,4 @@ void SstpSendPacket(SSTP_SERVER *s, SSTP_PACKET *p);
 bool GetNoSstp();
 void SetNoSstp(bool b);
 
-#endif	// INTEROP_SSTP_H
-
-
+#endif	// PROTO_SSTP_H
diff --git a/src/Cedar/IPsec_Win7.c b/src/Cedar/Proto_Win7.c
similarity index 96%
rename from src/Cedar/IPsec_Win7.c
rename to src/Cedar/Proto_Win7.c
index 6c749edf..fd1e76ce 100644
--- a/src/Cedar/IPsec_Win7.c
+++ b/src/Cedar/Proto_Win7.c
@@ -108,7 +108,7 @@
 // test has been passed before release this source code.
 
 
-// IPsec_Win7.c
+// Proto_Win7.c
 // Initialize the helper module for Windows 7 / Windows 8 / Windows Vista / Windows Server 2008 / Windows Server 2008 R2 / Windows Server 2012 / Windows 10
 
 #include <GlobalConst.h>
@@ -137,7 +137,7 @@
 #include <errno.h>
 #include <Mayaqua/Mayaqua.h>
 #include <Cedar/Cedar.h>
-#include "IPsec_Win7Inner.h"
+#include "Proto_Win7Inner.h"
 #include <Wfp/Wfp.h>
 
 static IPSEC_WIN7_FUNCTIONS *api = NULL;
diff --git a/src/Cedar/IPsec_Win7.h b/src/Cedar/Proto_Win7.h
similarity index 96%
rename from src/Cedar/IPsec_Win7.h
rename to src/Cedar/Proto_Win7.h
index bd489e70..fc9dbd90 100644
--- a/src/Cedar/IPsec_Win7.h
+++ b/src/Cedar/Proto_Win7.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// IPsec_Win7.h
-// Header of IPsec_Win7.c
+// Proto_Win7.h
+// Header of Proto_Win7.c
 
-#ifndef	IPSEC_WIN7_H
-#define	IPSEC_WIN7_H
+#ifndef	PROTO_WIN7_H
+#define	PROTO_WIN7_H
 
 // Constants
 #define	IPSEC_WIN7_SRC_SYS_X86	"|pxwfp_x86.sys"
@@ -142,7 +142,4 @@ void SetCurrentIPsecWin7DriverBuild();
 bool IPsecWin7InitApi();
 
 
-#endif	// IPSEC_WIN7_H
-
-
-
+#endif	// PROTO_WIN7_H
diff --git a/src/Cedar/IPsec_Win7Inner.h b/src/Cedar/Proto_Win7Inner.h
similarity index 95%
rename from src/Cedar/IPsec_Win7Inner.h
rename to src/Cedar/Proto_Win7Inner.h
index 2036aeca..3b544f95 100644
--- a/src/Cedar/IPsec_Win7Inner.h
+++ b/src/Cedar/Proto_Win7Inner.h
@@ -108,11 +108,11 @@
 // test has been passed before release this source code.
 
 
-// IPsec_Win7.h
-// Internal header of IPsec_Win7.c
+// Proto_Win7Inner.h
+// Internal header of Proto_Win7.c
 
-#ifndef	IPSEC_WIN7_INNER_H
-#define	IPSEC_WIN7_INNER_H
+#ifndef	PROTO_WIN7_INNER_H
+#define	PROTO_WIN7_INNER_H
 
 // API function
 typedef struct IPSEC_WIN7_FUNCTIONS
@@ -180,7 +180,4 @@ struct IPSEC_WIN7
 };
 
 
-#endif	// IPSEC_WIN7_INNER_H
-
-
-
+#endif	// PROTO_WIN7_INNER_H