diff --git a/src/Cedar/Interop_OpenVPN.c b/src/Cedar/Interop_OpenVPN.c
index 9d42c466..82db618c 100644
--- a/src/Cedar/Interop_OpenVPN.c
+++ b/src/Cedar/Interop_OpenVPN.c
@@ -124,24 +124,12 @@ static UCHAR ping_signature[] =
 	0x07, 0xed, 0x2d, 0x0a, 0x98, 0x1f, 0xc7, 0x48
 };
 
-// Set the OpenVPN over TCP disabling flag
-void OvsSetNoOpenVpnTcp(bool b)
-{
-	g_no_openvpn_tcp = b;
-}
-
 // Get the OpenVPN over TCP disabling flag
 bool OvsGetNoOpenVpnTcp()
 {
 	return g_no_openvpn_tcp;
 }
 
-// Set the OpenVPN over UDP disabling flag
-void OvsSetNoOpenVpnUdp(bool b)
-{
-	g_no_openvpn_udp = b;
-}
-
 // Get the OpenVPN over UDP disabling flag
 bool OvsGetNoOpenVpnUdp()
 {
@@ -1043,44 +1031,6 @@ void OvsFreeList(LIST *o)
 	FreeIni(o);
 }
 
-// Create an Option List
-LIST *OvsNewList()
-{
-	return NewListFast(NULL);
-}
-
-// Add a value to the option list
-void OvsAddEntry(LIST *o, char *key, char *value)
-{
-	INI_ENTRY *e;
-	// Validate arguments
-	if (o == NULL)
-	{
-		return;
-	}
-
-	e = GetIniEntry(o, key);
-	if (e != NULL)
-	{
-		// Overwrite existing keys
-		Free(e->Key);
-		e->Key = CopyStr(key);
-
-		Free(e->Value);
-		e->Value = CopyStr(value);
-	}
-	else
-	{
-		// Create a new key
-		e = ZeroMalloc(sizeof(INI_ENTRY));
-
-		e->Key = CopyStr(key);
-		e->Value = CopyStr(value);
-
-		Add(o, e);
-	}
-}
-
 // Confirm whether there is specified option key string
 bool OvsHasEntry(LIST *o, char *key)
 {
@@ -2606,22 +2556,6 @@ bool OvsIsCompatibleL3IP(UINT ip)
 	return false;
 }
 
-// Get an IP address that is compatible to tun device of the OpenVPN after the specified IP address
-UINT OvsGetCompatibleL3IPNext(UINT ip)
-{
-	ip = Endian32(ip);
-
-	while (true)
-	{
-		if (OvsIsCompatibleL3IP(Endian32(ip)))
-		{
-			return Endian32(ip);
-		}
-
-		ip++;
-	}
-}
-
 // Create a new OpenVPN server
 OPENVPN_SERVER *NewOpenVpnServer(CEDAR *cedar, INTERRUPT_MANAGER *interrupt, SOCK_EVENT *sock_event)
 {
@@ -2708,7 +2642,6 @@ void FreeOpenVpnServer(OPENVPN_SERVER *s)
 void OpenVpnServerUdpListenerProc(UDPLISTENER *u, LIST *packet_list)
 {
 	OPENVPN_SERVER_UDP *us;
-	UINT64 now = Tick64();
 	// Validate arguments
 	if (u == NULL || packet_list == NULL)
 	{
diff --git a/src/Cedar/Interop_OpenVPN.h b/src/Cedar/Interop_OpenVPN.h
index 6fdb007c..8e3c84d8 100644
--- a/src/Cedar/Interop_OpenVPN.h
+++ b/src/Cedar/Interop_OpenVPN.h
@@ -361,13 +361,10 @@ void OvsWriteStringToBuf(BUF *b, char *str, UINT max_size);
 
 LIST *OvsParseData(char *str, int type);
 void OvsFreeList(LIST *o);
-LIST *OvsNewList();
-void OvsAddEntry(LIST *o, char *key, char *value);
 bool OvsHasEntry(LIST *o, char *key);
 UINT OvsPeekStringFromFifo(FIFO *f, char *str, UINT str_size);
 void OvsBeginIPCAsyncConnectionIfEmpty(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_CHANNEL *c);
 bool OvsIsCompatibleL3IP(UINT ip);
-UINT OvsGetCompatibleL3IPNext(UINT ip);
 UINT OvsCalcTcpMss(OPENVPN_SERVER *s, OPENVPN_SESSION *se, OPENVPN_CHANNEL *c);
 
 CIPHER *OvsGetCipher(char *name);
@@ -378,11 +375,8 @@ bool OvsPerformTcpServer(CEDAR *cedar, SOCK *sock);
 
 void OvsSetReplyForVgsPollEnable(bool b);
 
-void OvsSetNoOpenVpnTcp(bool b);
 bool OvsGetNoOpenVpnTcp();
 
-void OvsSetNoOpenVpnUdp(bool b);
-
 void OpenVpnServerUdpSetDhParam(OPENVPN_SERVER_UDP *u, DH_CTX *dh);