diff --git a/net/neighbot/Makefile b/net/neighbot/Makefile
new file mode 100644
index 00000000000..9d68c873fe0
--- /dev/null
+++ b/net/neighbot/Makefile
@@ -0,0 +1,34 @@
+COMMENT =	network neighbor monitoring daemon
+
+V =		0.5.5
+DISTNAME =	neighbot-${V}
+
+CATEGORIES =	net
+
+HOMEPAGE =	https://github.com/renaudallard/neighbot
+SITES =		https://github.com/renaudallard/neighbot/releases/download/v${V}/
+
+MAINTAINER =	Renaud Allard <renaud@allard.it>
+
+# BSD
+PERMIT_PACKAGE =	Yes
+
+# uses pledge() and unveil()
+WANTLIB =		c pcap
+
+RUN_DEPENDS =	net/arp-scan,-mac
+
+NO_TEST =	Yes
+
+MAKE_FLAGS =	CC="${CC}" CFLAGS="${CFLAGS}" PREFIX="${PREFIX}"
+
+ALL_TARGET =	all
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/neighbot ${PREFIX}/sbin/neighbot
+	${INSTALL_MAN} ${WRKSRC}/neighbot.8 ${PREFIX}/man/man8/neighbot.8
+	${INSTALL_DATA_DIR} ${PREFIX}/share/examples/neighbot
+	${INSTALL_DATA} /dev/null \
+		${PREFIX}/share/examples/neighbot/neighbot.csv
+
+.include <bsd.port.mk>
diff --git a/net/neighbot/distinfo b/net/neighbot/distinfo
new file mode 100644
index 00000000000..32e8641f31d
--- /dev/null
+++ b/net/neighbot/distinfo
@@ -0,0 +1,2 @@
+SHA256 (neighbot-0.5.5.tar.gz) = JIuTdzAHXdew/QdcJvt3c5gFBnt+N541dzbOtTXGIhA=
+SIZE (neighbot-0.5.5.tar.gz) = 44884
diff --git a/net/neighbot/pkg/DESCR b/net/neighbot/pkg/DESCR
new file mode 100644
index 00000000000..24bb22559ec
--- /dev/null
+++ b/net/neighbot/pkg/DESCR
@@ -0,0 +1,7 @@
+Neighbot passively monitors ARP (IPv4) and NDP (IPv6) traffic on all
+Ethernet interfaces. It maintains a CSV database of IP-to-MAC address
+mappings and sends email alerts when new stations appear or existing
+mappings change.
+
+On OpenBSD, neighbot uses pledge(2) and unveil(2) to restrict its
+privileges after initialization.
diff --git a/net/neighbot/pkg/PLIST b/net/neighbot/pkg/PLIST
new file mode 100644
index 00000000000..2923663dbfc
--- /dev/null
+++ b/net/neighbot/pkg/PLIST
@@ -0,0 +1,12 @@
+@newgroup _neighbot:904
+@newuser _neighbot:904:_neighbot::neighbot daemon:/var/empty:/sbin/nologin
+@rcscript ${RCDIR}/neighbot
+@man man/man8/neighbot.8
+@bin sbin/neighbot
+share/examples/neighbot/
+@owner _neighbot
+@group _neighbot
+@sample /var/neighbot/
+share/examples/neighbot/neighbot.csv
+@mode 644
+@sample /var/neighbot/neighbot.csv
diff --git a/net/neighbot/pkg/neighbot.rc b/net/neighbot/pkg/neighbot.rc
new file mode 100644
index 00000000000..97448d496f6
--- /dev/null
+++ b/net/neighbot/pkg/neighbot.rc
@@ -0,0 +1,14 @@
+#!/bin/ksh
+
+daemon="${TRUEPREFIX}/sbin/neighbot -d"
+daemon_flags="-u _neighbot -o ${TRUEPREFIX}/share/arp-scan/ieee-oui.txt"
+
+. /etc/rc.d/rc.subr
+
+rc_reload=NO
+
+rc_pre() {
+	install -d -o _neighbot -g _neighbot ${LOCALSTATEDIR}/neighbot
+}
+
+rc_cmd $1