diff --git a/security/sentinel/Makefile b/security/sentinel/Makefile
new file mode 100644
index 00000000000..8c3cc19cc47
--- /dev/null
+++ b/security/sentinel/Makefile
@@ -0,0 +1,30 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2001/06/11 14:43:57 lebel Exp $
+
+COMMENT=		"remote promiscous mode detection tool"
+
+DISTNAME=		sentinel-0.8
+CATEGORIES=    		security net
+NEED_VERSION=		1.414
+
+HOMEPAGE=		http://www.packetfactory.net/Projects/sentinel/
+
+MAINTAINER=		Jason Peel <jsyn@nthought.com>
+
+PERMIT_PACKAGE_CDROM=	Yes	
+PERMIT_PACKAGE_FTP=	Yes 
+PERMIT_DISTFILES_CDROM=	Yes	
+PERMIT_DISTFILES_FTP=	Yes
+
+MASTER_SITES=		http://www.packetfactory.net/Projects/sentinel/ \
+			http://packetstorm.securify.com/UNIX/IDS/sentinel/
+
+LIB_DEPENDS=		net::net/libnet
+
+CONFIGURE_STYLE=	gnu
+
+post-install:
+	${INSTALL_DATA_DIR} ${PREFIX}/share/doc/sentinel
+	${INSTALL_DATA} ${WRKSRC}/Changelog ${PREFIX}/share/doc/sentinel
+	${INSTALL_DATA} ${WRKSRC}/README ${PREFIX}/share/doc/sentinel
+
+.include <bsd.port.mk>
diff --git a/security/sentinel/files/md5 b/security/sentinel/files/md5
new file mode 100644
index 00000000000..1f3e5b1fc9d
--- /dev/null
+++ b/security/sentinel/files/md5
@@ -0,0 +1,3 @@
+MD5 (sentinel-0.8.tar.gz) = a924a702a1c2ee4378ddd8ccfa9bb211
+RMD160 (sentinel-0.8.tar.gz) = 6830c4fbc6a859c332219170217ac640f7ba79e9
+SHA1 (sentinel-0.8.tar.gz) = 501a65ad6dfb557e54e811193acb0eadfbbbff5c
diff --git a/security/sentinel/patches/patch-Makefile_in b/security/sentinel/patches/patch-Makefile_in
new file mode 100644
index 00000000000..13750a3533b
--- /dev/null
+++ b/security/sentinel/patches/patch-Makefile_in
@@ -0,0 +1,29 @@
+$OpenBSD: patch-Makefile_in,v 1.1.1.1 2001/06/11 14:43:57 lebel Exp $
+--- Makefile.in.orig	Sat Apr 22 03:12:30 2000
++++ Makefile.in	Mon Jun 11 10:57:57 2001
+@@ -1,7 +1,6 @@
+ # $Id: patch-Makefile_in,v 1.1.1.1 2001/06/11 14:43:57 lebel Exp $
+ 
+ srcdir= .
+-prefix= /usr/local
+ 
+ CC=@CC@
+ CFLAGS=@CFLAGS@
+@@ -11,7 +10,7 @@ INCLUDE= -I/usr/local/include
+ DEFINES += `libnet-config --defines` #-DDEBUG
+ INSTALL=./install-sh 
+ 
+-prefix=/usr/local
++prefix=@prefix@
+ 
+ .c.o:
+ 	$(CC) $(CFLAGS) $(INCLUDE) $(DEFINES) -c $< -o $@
+@@ -23,7 +22,7 @@ sentinel: $(OBJS)
+ 	strip sentinel
+ 
+ install: 
+-	$(INSTALL) -c -m 0755 sentinel $(prefix)/sbin
++	$(INSTALL) -c -m 0755 sentinel $(DESTDIR)$(prefix)/sbin
+ 
+ clean:
+ 	rm -f core *.core *.o $(OBJS) sentinel
diff --git a/security/sentinel/pkg/DESCR b/security/sentinel/pkg/DESCR
new file mode 100644
index 00000000000..ee2c296ba70
--- /dev/null
+++ b/security/sentinel/pkg/DESCR
@@ -0,0 +1,8 @@
+The Sentinel project is designed to be a portable, accurate
+implementation of all publicly known promiscuous detection
+techniques.
+
+These include:
+   DNS Test - Etherping Test - ARP Test - ICMP Ping Latency Test
+
+WWW: ${HOMEPAGE}
diff --git a/security/sentinel/pkg/PLIST b/security/sentinel/pkg/PLIST
new file mode 100644
index 00000000000..01bd20ee004
--- /dev/null
+++ b/security/sentinel/pkg/PLIST
@@ -0,0 +1,5 @@
+@comment $OpenBSD: PLIST,v 1.1.1.1 2001/06/11 14:43:57 lebel Exp $
+sbin/sentinel
+share/doc/sentinel/Changelog
+share/doc/sentinel/README
+@dirrm share/doc/sentinel