diff --git security/softether-devel/Makefile security/softether-devel/Makefile
index 77dddef..523f5d9 100644
--- security/softether-devel/Makefile
+++ security/softether-devel/Makefile
@@ -13,7 +13,7 @@ LICENSE_FILE=	${WRKSRC}/LICENSE
 
 CONFLICTS_INSTALL=	softether
 
-USES=		dos2unix gmake iconv localbase readline ssl
+USES=		dos2unix gmake iconv localbase ncurses readline ssl
 DOS2UNIX_FILES=	src/Mayaqua/Network.c
 USE_GITHUB=	yes
 GH_ACCOUNT=	SoftEtherVPN
@@ -25,7 +25,17 @@ USE_RC_SUBR=	vpnserver vpnclient vpnbridge
 PORTDOCS=	AUTHORS.TXT BUILD_UNIX.TXT ChangeLog README THIRD_PARTY.TXT \
 		WARNING.TXT
 
-OPTIONS_DEFINE=	DOCS
+OPTIONS_DEFINE= DOCS UNLOCK
+
+# Use of some functions in Japan and China is restricted.
+# This option Unlocks regional lockout following functions:
+#  - RADIUS / NT Domain user authentication function
+#  - RSA certificate user authentication function
+#  - Deep-inspect packet logging function
+#  - Source IP address control list function
+#  - syslog transfer function
+UNLOCK_DESC= Unlock regional lockout (JP and CN)
+UNLOCK_EXTRA_PATCHES=   ${FILESDIR}/extra-patch-unrestrict-enterprise-functions
 
 post-patch:
 	${INSTALL_DATA} ${WRKSRC}/src/makefiles/freebsd_32bit.mak \
diff --git security/softether-devel/files/extra-patch-unrestrict-enterprise-functions security/softether-devel/files/extra-patch-unrestrict-enterprise-functions
new file mode 100644
index 0000000..8986d63
--- /dev/null
+++ security/softether-devel/files/extra-patch-unrestrict-enterprise-functions
@@ -0,0 +1,29 @@
+diff --git src/Cedar/Server.c src/Cedar/Server.c
+index c87ceba6..efe161ca 100644
+--- src/Cedar/Server.c
++++ src/Cedar/Server.c
+@@ -10854,23 +10854,7 @@ bool SiCheckCurrentRegion(CEDAR *c, char *r)
+ // 
+ bool SiIsEnterpriseFunctionsRestrictedOnOpenSource(CEDAR *c)
+ {
+-	char region[128];
+-	bool ret = false;
+-	// Validate arguments
+-	if (c == NULL)
+-	{
+-		return false;
+-	}
+-
+-
+-	SiGetCurrentRegion(c, region, sizeof(region));
+-
+-	if (StrCmpi(region, "JP") == 0 || StrCmpi(region, "CN") == 0)
+-	{
+-		ret = true;
+-	}
+-
+-	return ret;
++	return false;
+ }
+ 
+ // Update the current region