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diff --git a/sys/net/if_bridge.c b/sys/net/if_bridge.c
--- a/sys/net/if_bridge.c
+++ b/sys/net/if_bridge.c
@@ -3024,6 +3024,9 @@
} \
} \
m->m_pkthdr.rcvif = iface; \
+ if (!V_member_ifaddrs || \
+ ((iface) == bifp && sc->sc_ifaddr == NULL)) \
+ M_SETFIB(m, (iface)->if_fib); \
if ((iface) == ifp) { \
/* Skip bridge processing... src == dest */ \
return (m); \
diff --git a/tests/sys/net/if_bridge_test.sh b/tests/sys/net/if_bridge_test.sh
--- a/tests/sys/net/if_bridge_test.sh
+++ b/tests/sys/net/if_bridge_test.sh
@@ -1459,6 +1459,52 @@
vnet_cleanup
}
+atf_test_case "bridge_fib" "cleanup"
+bridge_fib_head()
+{
+ atf_set descr 'unicast to a bridge uses the FIB of the bridge'
+ atf_set require.user root
+}
+
+bridge_fib_body()
+{
+ vnet_init
+ vnet_init_bridge
+
+ epair=$(vnet_mkepair)
+
+ vnet_mkjail jbridge ${epair}a
+ vnet_mkjail jmember ${epair}b
+
+ sysctl -j jbridge net.link.bridge.member_ifaddrs=0
+ sysctl -j jbridge net.fibs=2
+
+ # The member stays in FIB 0, the bridge is in FIB 1, so the only
+ # route to 192.0.2.0/24 is in FIB 1.
+ bridge=$(ifconfig -j jbridge bridge create)
+ ifconfig -j jbridge ${bridge} fib 1
+ ifconfig -j jbridge ${bridge} addm ${epair}a
+ ifconfig -j jbridge ${epair}a up
+ ifconfig -j jbridge ${bridge} 192.0.2.1/24 up
+
+ ifconfig -j jmember ${epair}b 192.0.2.2/24 up
+
+ # Sanity check: the route only exists in the FIB of the bridge.
+ atf_check -s exit:0 -o ignore \
+ route -j jbridge -n get -fib 1 192.0.2.2
+ atf_check -s not-exit:0 -o ignore -e ignore \
+ route -j jbridge -n get -fib 0 192.0.2.2
+
+ # The echo reply is routed using the FIB of the received request, so
+ # this fails if the request is left in the FIB of the member.
+ atf_check -s exit:0 -o ignore jexec jmember ping -c 3 -t 1 192.0.2.1
+}
+
+bridge_fib_cleanup()
+{
+ vnet_cleanup
+}
+
atf_init_test_cases()
{
atf_add_test_case "bridge_transmit_ipv4_unicast"
@@ -1489,4 +1535,5 @@
atf_add_test_case "vlan_untagged"
atf_add_test_case "vlan_defuntagged"
atf_add_test_case "bridge_svi_in_bridge"
+ atf_add_test_case "bridge_fib"
}

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