diff --git a/etc/defaults/rc.conf b/etc/defaults/rc.conf
index ec5ec079ff6c..97be0018bd07 100644
--- a/etc/defaults/rc.conf
+++ b/etc/defaults/rc.conf
@@ -621,6 +621,7 @@ jail_sysvipc_allow="NO"	# Allow SystemV IPC use from within a jail
 #jail_example_hostname="default.domain.com"	# Jail's hostname
 #jail_example_ip="192.168.0.10"			# Jail's IP number
 #jail_example_interface=""			# Interface to create the IP alias on
+#jail_example_fib="0"				# routing table for setfib(1) 
 #jail_example_exec_start="/bin/sh /etc/rc"		# command to execute in jail for starting
 #jail_example_exec_afterstart0="/bin/sh command"	# command to execute after the one for 
 							# starting the jail. More than one can be
diff --git a/etc/rc.d/jail b/etc/rc.d/jail
index d35f3f70f139..87eab69ab834 100755
--- a/etc/rc.d/jail
+++ b/etc/rc.d/jail
@@ -83,6 +83,7 @@ init_variables()
 	[ -z "${_flags}" ] && _flags="-l -U root"
 	eval _consolelog=\"\${jail_${_j}_consolelog:-${jail_consolelog}}\"
 	[ -z "${_consolelog}" ] && _consolelog="/var/log/jail_${_j}_console.log"
+	eval _fib=\"\${jail_${_j}_fib:-${jail_fib}}\"
 
 	# Debugging aid
 	#
@@ -93,6 +94,7 @@ init_variables()
 	debug "$_j hostname: $_hostname"
 	debug "$_j ip: $_ip"
 	debug "$_j interface: $_interface"
+	debug "$_j fib: $_fib"
 	debug "$_j root: $_rootdir"
 	debug "$_j devdir: $_devdir"
 	debug "$_j fdescdir: $_fdescdir"
@@ -297,6 +299,11 @@ jail_start()
 		if [ -n "${_interface}" ]; then
 			ifconfig ${_interface} alias ${_ip} netmask 255.255.255.255
 		fi
+		if [ -n "${_fib}" ]; then
+			_setfib="setfib -F '${_fib}'"
+		else
+			_setfib=""
+		fi
 		if checkyesno _mount; then
 			info "Mounting fstab for jail ${_jail} (${_fstab})"
 			if [ ! -f "${_fstab}" ]; then
@@ -350,7 +357,7 @@ jail_start()
 			fi
 		fi
 		_tmp_jail=${_tmp_dir}/jail.$$
-		eval jail ${_flags} -i ${_rootdir} ${_hostname} \
+		eval ${_setfib} jail ${_flags} -i ${_rootdir} ${_hostname} \
 			${_ip} ${_exec_start} > ${_tmp_jail} 2>&1
 
 		if [ "$?" -eq 0 ] ; then
diff --git a/share/man/man5/rc.conf.5 b/share/man/man5/rc.conf.5
index cce458ed9285..2449a308280a 100644
--- a/share/man/man5/rc.conf.5
+++ b/share/man/man5/rc.conf.5
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd June 21, 2008
+.Dd September 16, 2008
 .Dt RC.CONF 5
 .Os
 .Sh NAME
@@ -3450,6 +3450,11 @@ These are flags to pass to
 Unset by default.
 When set, sets the interface to use when setting IP address alias.
 Note that the alias is created at jail startup and removed at jail shutdown.
+.It Va jail_ Ns Ao Ar jname Ac Ns Va _fib
+.Pq Vt str
+Unset by default.
+When set, the jail is started with the specified routing table via
+.Xr setfib 1 .
 .It Va jail_ Ns Ao Ar jname Ac Ns Va _fstab
 .Pq Vt str
 Set to