diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -521,11 +521,6 @@
 			goto bad;
 		}
 	}
-	/* The unspecified address can appear only as a src address - RFC1122 */
-	if (__predict_false(ntohl(ip->ip_dst.s_addr) == INADDR_ANY)) {
-		IPSTAT_INC(ips_badaddr);
-		goto bad;
-	}
 
 	if (m->m_pkthdr.csum_flags & CSUM_IP_CHECKED) {
 		sum = !(m->m_pkthdr.csum_flags & CSUM_IP_VALID);
@@ -641,6 +636,17 @@
 		}
 	}
 passin:
+	/*
+	 * The unspecified address can appear only as a src address - RFC1122.
+	 *
+	 * The check is deferred to here to give firewalls a chance to block
+	 * (and log) such packets.  ip_tryforward() will not process such
+	 * packets.
+	 */
+	if (__predict_false(ntohl(ip->ip_dst.s_addr) == INADDR_ANY)) {
+		IPSTAT_INC(ips_badaddr);
+		goto bad;
+	}
 
 	/*
 	 * Process options and, if not destined for us,
diff --git a/sys/netinet6/ip6_fastfwd.c b/sys/netinet6/ip6_fastfwd.c
--- a/sys/netinet6/ip6_fastfwd.c
+++ b/sys/netinet6/ip6_fastfwd.c
@@ -107,6 +107,7 @@
 	    IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) ||
 	    IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_dst) ||
 	    IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_src) ||
+	    IN6_IS_ADDR_UNSPECIFIED(&ip6->ip6_dst) ||
 	    IN6_IS_ADDR_UNSPECIFIED(&ip6->ip6_src) ||
 	    in6_localip(&ip6->ip6_dst))
 		return (m);
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c
--- a/sys/netinet6/ip6_input.c
+++ b/sys/netinet6/ip6_input.c
@@ -621,10 +621,10 @@
 	IP_PROBE(receive, NULL, NULL, ip6, rcvif, NULL, ip6);
 
 	/*
-	 * Check against address spoofing/corruption.
+	 * Check against address spoofing/corruption.  The unspecified address
+	 * is checked further below.
 	 */
-	if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_src) ||
-	    IN6_IS_ADDR_UNSPECIFIED(&ip6->ip6_dst)) {
+	if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_src)) {
 		/*
 		 * XXX: "badscope" is not very suitable for a multicast source.
 		 */
@@ -749,6 +749,17 @@
 	}
 
 passin:
+	/*
+	 * The check is deferred to here to give firewalls a chance to block
+	 * (and log) such packets.  ip6_tryforward() will not process such
+	 * packets.
+	 */
+	if (__predict_false(IN6_IS_ADDR_UNSPECIFIED(&ip6->ip6_dst))) {
+		IP6STAT_INC(ip6s_badscope);
+		in6_ifstat_inc(rcvif, ifs6_in_addrerr);
+		goto bad;
+	}
+
 	/*
 	 * Disambiguate address scope zones (if there is ambiguity).
 	 * We first make sure that the original source or destination address
diff --git a/tests/sys/netpfil/pf/pflog.sh b/tests/sys/netpfil/pf/pflog.sh
--- a/tests/sys/netpfil/pf/pflog.sh
+++ b/tests/sys/netpfil/pf/pflog.sh
@@ -195,9 +195,80 @@
 	pft_cleanup
 }
 
+atf_test_case "unspecified_v4" "cleanup"
+unspecified_v4_head()
+{
+	atf_set descr 'Ensure that packets to the unspecified address are visible to pfil hooks'
+	atf_set require.user root
+}
+
+unspecified_v4_body()
+{
+	pflog_init
+
+	vnet_mkjail alcatraz
+	jexec alcatraz ifconfig lo0 inet 127.0.0.1
+	jexec alcatraz route add default 127.0.0.1
+
+	jexec alcatraz pfctl -e
+	jexec alcatraz ifconfig pflog0 up
+	pft_set_rules alcatraz "block log on lo0 to 0.0.0.0"
+
+	jexec alcatraz tcpdump -n -e -ttt --immediate-mode -l -U -i pflog0 >> pflog.txt &
+	sleep 1 # Wait for tcpdump to start
+
+	atf_check -s not-exit:0 -o ignore -e ignore \
+	    jexec alcatraz ping -S 127.0.0.1 -c 1 0.0.0.0
+
+	atf_check -o match:".*: block out on lo0: 127.0.0.1 > 0.0.0.0: ICMP echo request,.*" \
+	    cat pflog.txt
+}
+
+unspecified_v4_cleanup()
+{
+	pft_cleanup
+}
+
+atf_test_case "unspecified_v6" "cleanup"
+unspecified_v6_head()
+{
+	atf_set descr 'Ensure that packets to the unspecified address are visible to pfil hooks'
+	atf_set require.user root
+}
+
+unspecified_v6_body()
+{
+	pflog_init
+
+	vnet_mkjail alcatraz
+	jexec alcatraz ifconfig lo0 up
+	jexec alcatraz route -6 add ::0 ::1
+
+	jexec alcatraz pfctl -e
+	jexec alcatraz ifconfig pflog0 up
+	pft_set_rules alcatraz "block log on lo0 to ::0"
+
+	jexec alcatraz tcpdump -n -e -ttt --immediate-mode -l -U -i pflog0 >> pflog.txt &
+	sleep 1 # Wait for tcpdump to start
+
+	atf_check -s not-exit:0 -o ignore -e ignore \
+	    jexec alcatraz ping -6 -S ::1 -c 1 ::0
+
+	cat pflog.txt
+	atf_check -o match:".*: block out on lo0: ::1 > ::: ICMP6, echo request,.*" \
+	    cat pflog.txt
+}
+
+unspecified_v6_cleanup()
+{
+	pft_cleanup
+}
+
 atf_init_test_cases()
 {
 	atf_add_test_case "malformed"
 	atf_add_test_case "matches"
 	atf_add_test_case "state_max"
+	atf_add_test_case "unspecified_v4"
+	atf_add_test_case "unspecified_v6"
 }