Add regression tests scripts for multi-IP FIBs exercising the send,

receive and forward path tagging packets with both the ifconfig fib
option or using ipfw, running ICMP6, TCP/v6 and UDP/v6 tests and
testing both setfib(2) as well as the SO_SETFIB socket option.

At 16 FIBs a total of over 64k return codes/replies/stati are checked,
sometimes multiple times (in different ways, e.g. the reflected request
as well as ipfw counter values).

The scripts need two or three machines to run and are thus not added
to the tools/regression framework but only to tools/test.

Sponsored by:	Cisco Systems, Inc.

1 files changed, 1516 insertions, 0 deletions

diff --git a/tools/test/netfibs/initiator.sh b/tools/test/netfibs/initiator.sh
new file mode 100755
index 0000000..51ffc7f
--- /dev/null
+++ b/tools/test/netfibs/initiator.sh
@@ -0,0 +1,1516 @@
+#!/bin/sh
+#-
+# Copyright (c) 2012 Cisco Systems, Inc.
+# All rights reserved.
+#
+# This software was developed by Bjoern Zeeb under contract to
+# Cisco Systems, Inc..
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+
+# We will use the RFC5180 (and Errata) benchmarking working group prefix
+# 2001:0002::/48 for testing.
+PREFIX="2001:2:"
+
+# Set IFACE to the real interface you want to run the test on.
+: ${IFACE:=lo0}
+
+# Number of seconds to wait for peer node to synchronize for test.
+: ${WAITS:=120}
+
+# Control port we use to exchange messages between nodes to sync. tests, etc.
+: ${CTRLPORT:=6666}
+
+# Get the number of FIBs from the kernel.
+RT_NUMFIBS=`sysctl -n net.fibs`
+
+OURADDR="2001:2:ff00::1"
+PEERADDR="2001:2:ff00::2"
+PEERLINKLOCAL=""
+
+# By default all commands must succeed.  Individual tests may disable this
+# temporary.
+set -e
+
+# Debug magic.
+case "${DEBUG}" in
+42)	set -x ;;
+esac
+
+
+
+#
+# Helper functions.
+#
+check_rc()
+{
+	local _rc _exp _testno _testname _msg _r
+	_rc=$1
+	_exp=$2
+	_testno=$3
+	_testname="$4"
+	_msg="$5"
+
+	_r="not ok"
+	if test ${_rc} -eq ${_exp}; then
+		_r="ok"
+	fi
+	echo "${_r} ${_testno} ${_testname} # ${_msg} ${_rc} ${_exp}"
+}
+
+print_debug()
+{
+	local _msg
+	_msg="$*"
+
+	case ${DEBUG} in
+	''|0)	;;
+	*)	echo "DEBUG: ${_msg}" >&2 ;;
+	esac
+}
+
+die()
+{
+	local _msg
+	_msg="$*"
+
+	echo "ERROR: ${_msg}" >&2
+	exit 1
+}
+
+#
+# Test functions.
+#
+
+# Make sure the local link-local and global addresses are reachable
+# from all FIBs.
+check_local_addr()
+{
+	local _l i testno
+
+	print_debug "Setting up interface ${IFACE}"
+	ifconfig ${IFACE} inet6 ${OURADDR}/64 alias up
+	_l=`ifconfig ${IFACE} | awk '/inet6 fe80:/ { print $2 }'`
+
+	# Let things settle.
+	print_debug "Waiting 4 seconds for things to settle"
+	sleep 4
+
+	printf "1..%d\n" `expr 2 \* ${RT_NUMFIBS}`
+	testno=1
+	i=0
+	set +e
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		print_debug "Testing FIB ${i}"
+
+		setfib -F${i} ping6 -n -c1 ${_l} > /dev/null 2>&1
+		check_rc $? 0 ${testno} "check_local_addr_${i}_l" \
+		    "FIB ${i} ${_l}"
+		testno=$((testno + 1))
+
+		setfib -F${i} ping6 -n -c1 ${OURADDR} > /dev/null 2>&1
+		check_rc $? 0 ${testno} "check_local_addr_${i}_a" \
+		    "FIB ${i} ${OURADDR}"
+		testno=$((testno + 1))
+
+		i=$((i + 1))
+	done
+	set -e
+	ifconfig ${IFACE} inet6 ${OURADDR}/64 -alias
+}
+
+
+# Cloned tun(4) devices behave differently on FIB 0 vs. FIB 1..n after creation
+# (they also do in IPv4).
+check_local_tun()
+{
+	local _l i testno IFACE _msg
+
+	IFACE=tun42
+	print_debug "Setting up interface ${IFACE}"
+	ifconfig ${IFACE} create
+	ifconfig ${IFACE} inet6 ${OURADDR}/64 alias up
+	_l=`ifconfig ${IFACE} | awk '/inet6 fe80:/ { print $2 }'`
+
+	# Let things settle.
+	print_debug "Waiting 4 seconds for things to settle"
+	sleep 4
+
+	printf "1..%d\n" `expr 2 \* ${RT_NUMFIBS}`
+	testno=1
+	_msg=""
+	i=0
+	set +e
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		print_debug "Testing FIB ${i}"
+		if test ${i} -gt 0; then
+			# Flag the well known behaviour as such.
+			_msg="TODO "
+		fi
+
+		setfib -F${i} ping6 -n -c1 ${_l} > /dev/null 2>&1
+		check_rc $? 0 ${testno} "check_local_addr_${i}_l" \
+		    "${_msg}FIB ${i} ${_l}"
+		testno=$((testno + 1))
+
+		setfib -F${i} ping6 -n -c1 ${OURADDR} > /dev/null 2>&1
+		check_rc $? 0 ${testno} "check_local_addr_${i}_a" \
+		    "${_msg}FIB ${i} ${OURADDR}"
+		testno=$((testno + 1))
+
+		i=$((i + 1))
+	done
+	set -e
+	ifconfig ${IFACE} inet6 ${OURADDR}/64 -alias
+	ifconfig ${IFACE} destroy
+}
+
+check_remote_up()
+{
+	local _l i testno
+
+	print_debug "Setting up interface ${IFACE}"
+	ifconfig ${IFACE} inet6 ${OURADDR}/64 alias up
+	_l=`ifconfig ${IFACE} | awk '/inet6 fe80:/ { print $2 }'`
+
+	# Let things settle.
+	print_debug "Waiting 4 seconds for things to settle"
+	sleep 4
+
+
+
+}
+
+send_greeting()
+{
+        local _l _greeting _keyword _fib _fibs _linklocal
+
+	print_debug "Setting up interface ${IFACE}"
+	ifconfig ${IFACE} inet6 ${OURADDR}/64 alias up
+	_l=`ifconfig ${IFACE} | awk '/inet6 fe80:/ { print $2 }'`
+
+	# Let things settle.
+	print_debug "Waiting 4 seconds for things to settle"
+	sleep 4
+
+	# Cleanup firewall and install rules to always allow NS/NA to succeed.
+	# The latter is needed to allow indvidiual less specific later rules
+	# from test cases to just disallow any IPv6 traffic on a matching FIB.
+	ipfw -f flush > /dev/null 2>&1
+	ipfw add 5 permit ipv6-icmp from any to any icmp6types 135,136 fib 0 \
+	    via ${IFACE} out > /dev/null 2>&1
+
+	set +e
+	i=0
+	rc=-1
+	while test ${i} -lt ${WAITS} -a ${rc} -ne 0; do
+		print_debug "Sending greeting #${i} to peer"
+		_greeting=`echo "SETUP ${RT_NUMFIBS} ${_l}" | \
+		    nc -6 -w 1 ${PEERADDR} ${CTRLPORT}`
+		rc=$?
+		i=$((i + 1))
+		# Might sleep longer in total but better than to DoS
+		# and not get anywhere.
+		sleep 1
+	done
+	set -e
+
+	read _keyword _fibs _linklocal <<EOI
+${_greeting}
+EOI
+	print_debug "_keyword=${_keyword}"
+	print_debug "_fibs=${_fibs}"
+	print_debug "_linklocal=${_linklocal}"
+	case ${_keyword} in
+	SETUP)	;;
+	*)	die "Got invalid keyword in greeting: ${_greeting}"
+	;;
+	esac
+	if test ${_fibs} -ne ${RT_NUMFIBS}; then
+		die "Number of FIBs not matching ours (${RT_NUMFIBS}) in" \
+		    "greeting: ${_greeting}"
+	fi
+	PEERLINKLOCAL=${_linklocal}
+
+	# Swap the zoneid to the local interface scope.
+	PEERLINKLOCAL="${PEERLINKLOCAL%%\%*}%${IFACE}"
+
+	print_debug "Successfully exchanged greeting. Peer at ${PEERLINKLOCAL}"
+}
+
+cleanup()
+{
+
+	# Cleanup ipfw.
+	ipfw delete 5 > /dev/null 2>&1
+
+	print_debug "Removing address from interface ${IFACE}"
+	ifconfig ${IFACE} inet6 ${OURADDR}/64 -alias
+}
+
+testtx_icmp6()
+{
+	local _n _transfer i testno _txt _fibtxt _rc _ec _p
+	_n="$1"
+	_transfer=$2
+
+	printf "1..%d\n" `expr 2 \* ${RT_NUMFIBS}`
+	testno=1
+	set +e
+	i=0
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		_txt="${_n}${i}"
+		print_debug "Testing ${_txt}"
+		_fibtxt=`echo "${_txt}" | hd -v | cut -b11-60 | tr -d ' \r\n'`
+
+		eval _rc="\${rc_${i}_l}"
+		setfib -F${i} ping6 -n -c1 -p ${_fibtxt} \
+		    ${PEERLINKLOCAL} > /dev/null 2>&1
+		_ec=$?
+		# We need to normalize the exit code of ping6.
+		case ${_ec} in
+		0)	;;
+		*)	_ec=1 ;;
+		esac
+		check_rc ${_ec} ${_rc} ${testno} "${_txt}_l" \
+		    "FIB ${i} ${PEERLINKLOCAL}"
+		testno=$((testno + 1))
+
+		# If doing multiple transfer networks, replace PEERADDR.
+		_p="${PEERADDR}"
+		case ${_transfer} in
+		1)	PEERADDR=2001:2:${i}::2 ;;
+		esac
+
+		eval _rc="\${rc_${i}_a}"
+		setfib -F${i} ping6 -n -c1 -p ${_fibtxt} ${PEERADDR} \
+		    > /dev/null 2>&1
+		_ec=$?
+		# We need to normalize the exit code of ping6.
+		case ${_ec} in
+		0)	;;
+		*)	_ec=1 ;;
+		esac
+		check_rc ${_ec} ${_rc} ${testno} "${_txt}_a" \
+		    "FIB ${i} ${PEERADDR}"
+		testno=$((testno + 1))
+
+		# Restore PEERADDR.
+		PEERADDR="${_p}"
+
+		i=$((i + 1))
+	done
+	set -e
+}
+
+nc_send_recv()
+{
+	local _fib _loops _msg _expreply _addr _port _opts i
+	_fib=$1
+	_loops=$2
+	_msg="$3"
+	_expreply="$4"
+	_addr=$5
+	_port=$6
+	_opts="$7"
+
+	i=0
+	while test ${i} -lt ${_loops}; do
+		i=$((i + 1))
+		case "${USE_SOSETFIB}" in
+		1)
+			_reply=`echo "${_msg}" | \
+			    nc -V ${_fib} ${_opts} ${_addr} ${_port}`
+			;;
+		*)
+			_reply=`echo "${_msg}" | \
+			    setfib -F${_fib} nc ${_opts} ${_addr} ${_port}`
+			;;
+		esac
+		if test "${_reply}" != "${_expreply}"; then
+			if test ${i} -lt ${_loops}; then
+				sleep 1
+			else
+			# Must let caller decide how to handle the error.
+			#	die "Got invalid reply from peer." \
+			#	    "Expected '${_expreply}', got '${_reply}'"
+				return 1
+			fi
+		else
+			break
+		fi
+	done
+	return 0
+}
+
+testtx_tcp_udp()
+{
+	local _n _o _f testno i _fibtxt
+	_n="$1"
+	_o="$2"
+	_f="$3"
+
+	printf "1..%d\n" `expr 2 \* ${RT_NUMFIBS}`
+	testno=1
+	i=0
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		print_debug "Testing ${_f} ${i}"
+
+		eval _rc="\${rc_${i}_l}"
+		_fibtxt="${_n}_${i}_l ${_f} ${i} ${PEERLINKLOCAL}"
+		nc_send_recv ${i} 1 "${_fibtxt}" "${_fibtxt}" ${PEERLINKLOCAL} \
+		    ${CTRLPORT} "-6 ${_o} -w1"
+		check_rc $? ${_rc} ${testno} "${_fibtxt}"
+		testno=$((testno + 1))
+
+		eval _rc="\${rc_${i}_a}"
+		_fibtxt="${_n}_${i}_a ${_f} ${i} ${PEERADDR}"
+		nc_send_recv ${i} 1 "${_fibtxt}" "${_fibtxt}" ${PEERADDR} \
+		    ${CTRLPORT} "-6 ${_o} -w1"
+		check_rc $? ${_rc} ${testno} "${_fibtxt}"
+		testno=$((testno + 1))
+
+		i=$((i + 1))
+	done
+}
+
+# setfib TCP|UDP/IPv6 test on link-local and global address of peer from all FIBs.
+testtx_ulp6_connected()
+{
+	local _fibtxt _reply _n _o _rc _fib _f _opts
+	_n=$1
+	_o="$2"
+	_fib=$3
+
+	case "${USE_SOSETFIB}" in
+	1) _f="SO_SETFIB" ;;
+	*) _f="SETFIB" ;;
+	esac
+
+	if test "${_o}" == "-i" -a "${_f}" == "SO_SETFIB"; then
+		print_debug "Skipping icmp6 tests for SO_SETFIB."
+		return 0
+	fi
+
+	# Clear the neighbor table to get deterministic runs.
+	ndp -cn > /dev/null 2>&1
+
+	case "${_o}" in
+	-i)	_opts="" ;;		# Use TCP for START/DONE.
+	*)	_opts="${_o}" ;;
+	esac
+
+	set +e
+	# Let peer know that we are about to start.
+	_msg="START ${_n}"
+	nc_send_recv ${_fib} ${WAITS} "${_msg}" "${_msg}" ${PEERADDR} \
+	    ${CTRLPORT} "-6 ${_opts} -w1"
+	case $? in
+	0)	;;
+	*)	die "Got invalid reply from peer." \
+		    "Expected '${_msg}', got '${_reply}'" ;;
+	esac
+
+	case "${_o}" in
+	-i)	testtx_icmp6 "${_n}" ;;
+	*)	testtx_tcp_udp "${_n}" "${_o}" "${_f}" ;;
+	esac
+
+	# Let peer know that we are done with this test to move to next.
+	# This must immediately succeed.
+	_msg="DONE ${_n}"
+	nc_send_recv ${_fib} ${WAITS} "${_msg}" "${_msg}" ${PEERADDR} \
+	    ${CTRLPORT} "-6 ${_opts} -w1"
+	case $? in
+	0)	;;
+	*)	die "Got invalid reply from peer." \
+		    "Expected '${_msg}', got '${_reply}'" ;;
+	esac
+	set -e
+
+	print_debug "Successfully received status update '${_reply}'."
+}
+
+################################################################################
+#
+# ping6|TCP/UDP connect link-local and global address of peer from all FIBs.
+# Default reachability test.
+#
+testtx_icmp6_connected()
+{
+	local i
+
+	# Setup expected return values.
+	i=0
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		eval rc_${i}_l=0
+		eval rc_${i}_a=0
+		i=$((i + 1))
+	done
+
+	testtx_ulp6_connected "testtx_icmp6_connected" "-i" 0
+}
+
+testtx_tcp6_connected()
+{
+	local i
+
+	# Setup expected return values.
+	i=0
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		eval rc_${i}_l=0
+		eval rc_${i}_a=0
+		i=$((i + 1))
+	done
+
+	testtx_ulp6_connected testtx_tcp6_connected "" 0
+}
+
+testtx_udp6_connected()
+{
+	local i
+
+	# Setup expected return values.
+	i=0
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		eval rc_${i}_l=0
+		eval rc_${i}_a=0
+		i=$((i + 1))
+	done
+
+	testtx_ulp6_connected testtx_udp6_connected "-u" 0
+}
+
+################################################################################
+#
+# Use ipfw to return unreach messages for all but one FIB.  Rotate over all.
+# Making sure error messages are properly returned.
+#
+testtx_ulp6_connected_blackhole()
+{
+	local _fib i _n _o
+	_n="$1"
+	_o="$2"
+
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+
+		print_debug "${_n} ${_fib}"
+
+		# Setup expected return values.
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			ipfw delete $((100 + i)) > /dev/null 2>&1 || true
+			case ${i} in
+			${_fib})
+				eval rc_${i}_l=0
+				eval rc_${i}_a=0
+				;;
+			*)	eval rc_${i}_l=1
+				eval rc_${i}_a=1
+				ipfw add $((100 + i)) unreach6 admin-prohib \
+				    ip6 from any to any fib ${i} via ${IFACE} \
+				    out > /dev/null 2>&1
+				;;
+			esac
+			i=$((i + 1))
+		done
+
+		testtx_ulp6_connected "${_n}${_fib}" "${_o}" ${_fib}
+		case ${DEBUG} in
+		''|0)	;;
+		*)	ipfw show ;;
+		esac
+		_fib=$((_fib + 1))
+	done
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		ipfw delete $((100 + _fib)) > /dev/null 2>&1 || true
+		_fib=$((_fib + 1))
+	done
+}
+
+testtx_icmp6_connected_blackhole()
+{
+
+	testtx_ulp6_connected_blackhole \
+	    "testtx_icmp6_connected_blackhole" "-i"
+}
+
+testtx_tcp6_connected_blackhole()
+{
+
+	testtx_ulp6_connected_blackhole \
+	    "testtx_tcp6_connected_blackhole" ""
+}
+
+testtx_udp6_connected_blackhole()
+{
+
+	testtx_ulp6_connected_blackhole \
+	    "testtx_udp6_connected_blackhole" "-u"
+}
+
+################################################################################
+#
+# Setup a different transfer net on each FIB.  Delete all but one connected
+# route in all FIBs (e.g. FIB 0 uses prefix 0, FIB 1 uses prefix 1 , ...).
+#
+# Need to tag NS/NA incoming to the right FIB given the default FIB does not
+# know about the prefix and thus cannot do proper source address lookups for
+# replying otherwise.   Use ipfw.
+#
+testtx_ulp6_connected_transfernets()
+{
+	local _fib i _n _o _p
+	_n="$1"
+	_o="$2"
+
+	# Setup transfer networks and firewall.
+	ipfw delete 10 > /dev/null 2>&1 || true
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 -alias \
+		    > /dev/null 2>&1 || true
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 alias
+		ipfw add 10 setfib ${_fib} ipv6-icmp from 2001:2:${_fib}::/64 \
+		    to any ip6 icmp6types 135,136 via ${IFACE} in \
+		    > /dev/null 2>&1
+		# Remove connected routes from all but matching FIB.
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			case ${i} in
+			${_fib});;
+			*)	setfib -F${i} route delete -inet6 \
+				    -net 2001:2:${_fib}:: > /dev/null 2>&1
+				;;
+			esac
+			i=$((i + 1))
+		done
+		_fib=$((_fib + 1))
+	done
+
+	# Save PEERADDR
+	_p=${PEERADDR}
+
+	# Run tests.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		PEERADDR=2001:2:${_fib}::2
+
+		print_debug "${_n} ${_fib}"
+
+		# Setup expected return values.
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			eval rc_${i}_l=0
+			case ${i} in
+			${_fib})
+				eval rc_${i}_a=0
+				;;
+			*)	eval rc_${i}_a=1
+				;;
+			esac
+			i=$((i + 1))
+		done
+
+		testtx_ulp6_connected "${_n}${_fib}" "${_o}" ${_fib}
+		_fib=$((_fib + 1))
+	done
+
+	# Restore PEERADDR
+	PEERADDR=${_p}
+
+	# Cleanup transfer networks and firewall.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 -alias
+		_fib=$((_fib + 1))
+	done
+	ipfw delete 10 > /dev/null 2>&1
+}
+
+testtx_icmp6_connected_transfernets()
+{
+
+	testtx_ulp6_connected_transfernets \
+	    "testtx_icmp6_connected_transfernets" "-i"
+}
+
+testtx_tcp6_connected_transfernets()
+{
+
+	testtx_ulp6_connected_transfernets \
+	    "testtx_tcp6_connected_transfernets" ""
+}
+
+testtx_udp6_connected_transfernets()
+{
+
+	testtx_ulp6_connected_transfernets \
+	    "testtx_udp6_connected_transfernets" "-u"
+}
+
+################################################################################
+#
+# Setup a different transfernet on each FIB.  Delete all but one connected
+# route in all FIBs (e.g. FIB 0 uses prefix 0, FIB 1 uses prefix 1 , ...).
+#
+# Need to tag NS/NA incoming to the right FIB given the default FIB does not
+# know about the prefix and thus cannot do proper source address lookups for
+# replying otherwise.   Use ifconfig IFACE fib.
+#
+testtx_ulp6_connected_ifconfig_transfernets()
+{
+	local _fib i _n _o _p
+	_n="$1"
+	_o="$2"
+
+	# Setup transfer networks.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 -alias \
+		    > /dev/null 2>&1 || true
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 alias
+		# Remove connected routes from all but matching FIB.
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			case ${i} in
+			${_fib});;
+			*)	setfib -F${i} route delete -inet6 \
+				    -net 2001:2:${_fib}:: > /dev/null 2>&1
+				;;
+			esac
+			i=$((i + 1))
+		done
+		_fib=$((_fib + 1))
+	done
+
+	# Save PEERADDR
+	_p=${PEERADDR}
+
+	# Run tests.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		PEERADDR=2001:2:${_fib}::2
+
+		print_debug "${_n} ${_fib}"
+
+		# Setup expected return values.
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			eval rc_${i}_l=0
+			case ${i} in
+			${_fib})
+				eval rc_${i}_a=0
+				;;
+			*)	eval rc_${i}_a=1
+				;;
+			esac
+			i=$((i + 1))
+		done
+
+		ifconfig ${IFACE} fib ${_fib}
+
+		testtx_ulp6_connected "${_n}${_fib}" "${_o}" ${_fib}
+		_fib=$((_fib + 1))
+	done
+
+	# Restore PEERADDR
+	PEERADDR=${_p}
+
+	# Cleanup transfer networks.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 -alias
+		_fib=$((_fib + 1))
+	done
+	ifconfig ${IFACE} fib 0
+}
+
+testtx_icmp6_connected_ifconfig_transfernets()
+{
+
+	testtx_ulp6_connected_ifconfig_transfernets \
+	    "testtx_icmp6_connected_ifconfig_transfernets" "-i"
+}
+
+
+testtx_tcp6_connected_ifconfig_transfernets()
+{
+
+	testtx_ulp6_connected_ifconfig_transfernets \
+	    "testtx_tcp6_connected_ifconfig_transfernets" ""
+}
+
+testtx_udp6_connected_ifconfig_transfernets()
+{
+
+	testtx_ulp6_connected_ifconfig_transfernets \
+	    "testtx_udp6_connected_ifconfig_transfernets" "-u"
+}
+
+################################################################################
+#
+# Make destination reachable through the same default route in each FIB only.
+# Run standard reachability test.
+#
+testtx_ulp6_gateway()
+{
+	local _fib i _n _o _p
+	_n="$1"
+	_o="$2"
+
+	# Setup default gateway and expected error codes.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		setfib -F${_fib} route delete -inet6 -net default \
+		    > /dev/null 2>&1 || true
+		setfib -F${_fib} route add -inet6 -net default ${PEERADDR} \
+		    > /dev/null 2>&1
+		case "${_o}" in
+		-i) eval rc_${_fib}_l=0 ;;	# ICMPv6 will succeed
+		*)  eval rc_${_fib}_l=1 ;;
+		esac
+		eval rc_${_fib}_a=0
+		_fib=$((_fib + 1))
+	done
+
+	# Save PEERADDR
+	_p=${PEERADDR}
+	PEERADDR="2001:2:ff01::2"
+
+	# Run tests.
+	print_debug "${_n}"
+	testtx_ulp6_connected "${_n}" "${_o}" 0
+
+	# Restore PEERADDR
+	PEERADDR=${_p}
+
+	# Cleanup transfer networks.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		setfib -F${_fib} route delete -inet6 -net default \
+		    > /dev/null 2>&1
+		_fib=$((_fib + 1))
+	done
+}
+
+testtx_icmp6_gateway()
+{
+
+	testtx_ulp6_gateway "testtx_icmp6_gateway" "-i"
+}
+
+testtx_tcp6_gateway()
+{
+
+	testtx_ulp6_gateway "testtx_tcp6_gateway" ""
+}
+
+testtx_udp6_gateway()
+{
+
+	testtx_ulp6_gateway "testtx_udp6_gateway" "-u"
+}
+
+################################################################################
+#
+# Make destination reachable through a different default route in each FIB.
+# Generate a dedicated transfer network for that in each FIB.  Delete all but
+# one connected route in all FIBs (e.g. FIB 0 uses prefix 0, ...).
+#
+# Have a default route present in each FIB all time.
+#
+# Need to tag NS/NA incoming to the right FIB given the default FIB does not
+# know about the prefix and thus cannot do proper source address lookups for
+# replying otherwise.   Use ipfw.
+#
+#
+testtx_ulp6_transfernets_gateways()
+{
+	local _fib i _n _o _p
+	_n="$1"
+	_o="$2"
+
+	# Setup transfer networks, default routes, and firewall.
+	_fib=0
+	ipfw delete 10 > /dev/null 2>&1 || true
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 -alias \
+		    > /dev/null 2>&1 || true
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 alias \
+		    > /dev/null 2>&1
+		ipfw add 10 setfib ${_fib} ipv6-icmp \
+		    from 2001:2:${_fib}::/64 to any ip6 icmp6types 135,136 \
+		    via ${IFACE} in > /dev/null 2>&1
+		# Remove connected routes from all but matching FIB.
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			case ${i} in
+			${_fib});;
+			*)	setfib -F${i} route delete -inet6 \
+				    -net 2001:2:${_fib}:: > /dev/null 2>&1
+				;;
+			esac
+			i=$((i + 1))
+		done
+		# Add default route.
+		setfib -F${_fib} route delete -inet6 -net default \
+		    > /dev/null 2>&1 || true
+		setfib -F${_fib} route add -inet6 -net default \
+		    2001:2:${_fib}::2 > /dev/null 2>&1
+		_fib=$((_fib + 1))
+	done
+
+	# Save PEERADDR
+	_p=${PEERADDR}
+	PEERADDR="2001:2:ff01::2"
+
+	# Setup expected return values.
+	i=0
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		case "${_o}" in
+		-i) eval rc_${i}_l=0 ;;	# ICMPv6 will succeed
+		*)  eval rc_${i}_l=1 ;;
+		esac
+		eval rc_${i}_a=0
+		i=$((i + 1))
+	done
+
+	# Run tests.
+	print_debug "${_n}"
+	testtx_ulp6_connected "${_n}" "${_o}" 0
+
+	# Restore PEERADDR
+	PEERADDR=${_p}
+
+	# Cleanup default routes, transfer networks, and firewall.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		setfib -F${_fib} route delete -inet6 -net default \
+		    > /dev/null 2>&1
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 -alias \
+		    > /dev/null 2>&1
+		_fib=$((_fib + 1))
+	done
+	ipfw delete 10 > /dev/null 2>&1
+}
+
+testtx_icmp6_transfernets_gateways()
+{
+
+	testtx_ulp6_transfernets_gateways \
+	    "testtx_icmp6_transfernets_gateways" "-i"
+}
+
+testtx_tcp6_transfernets_gateways()
+{
+
+	testtx_ulp6_transfernets_gateways \
+	    "testtx_tcp6_transfernets_gateways" ""
+}
+
+testtx_udp6_transfernets_gateways()
+{
+
+	testtx_ulp6_transfernets_gateways \
+	    "testtx_udp6_transfernets_gateways" "-u"
+}
+
+################################################################################
+#
+# Make destination reachable through a different default route in each FIB.
+# Generate a dedicated transfer network for that in each FIB.  Delete all but
+# one connected route in all FIBs (e.g. FIB 0 uses prefix 0, ...).
+#
+# Only have a default route present in 1 FIB at a time.
+#
+# Need to tag NS/NA incoming to the right FIB given the default FIB does not
+# know about the prefix and thus cannot do proper source address lookups for
+# replying otherwise.   Use ipfw.
+#
+testtx_ulp6_transfernets_gateway()
+{
+	local _fib i _n _o _p
+	_n="$1"
+	_o="$2"
+
+	# Setup transfer networks, default routes, and firewall.
+	_fib=0
+	ipfw delete 10 > /dev/null 2>&1 || true
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 -alias \
+		    > /dev/null 2>&1 || true
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 alias \
+		    > /dev/null 2>&1
+		ipfw add 10 setfib ${_fib} ipv6-icmp \
+		    from 2001:2:${_fib}::/64 to any ip6 icmp6types 135,136 \
+		    via ${IFACE} in > /dev/null 2>&1
+		# Remove connected routes from all but matching FIB.
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			case ${i} in
+			${_fib});;
+			*)	setfib -F${i} route delete -inet6 \
+				    -net 2001:2:${_fib}:: > /dev/null 2>&1
+				;;
+			esac
+			i=$((i + 1))
+		done
+		_fib=$((_fib + 1))
+	done
+
+	# Save PEERADDR
+	_p=${PEERADDR}
+	PEERADDR="2001:2:ff01::2"
+
+	# Run tests.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+
+		print_debug "${_n} ${_fib}"
+
+		# Setup expected return values.
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			case "${_o}" in
+			-i) eval rc_${i}_l=0 ;;	# ICMPv6 will succeed
+			*)  eval rc_${i}_l=1 ;;
+			esac
+			case ${i} in
+			${_fib})
+				eval rc_${i}_a=0
+				;;
+			*)	eval rc_${i}_a=1
+				;;
+			esac
+			i=$((i + 1))
+		done
+
+		# Add default route.
+		setfib -F${_fib} route delete -inet6 -net default \
+		    > /dev/null 2>&1 || true
+		setfib -F${_fib} route add -inet6 -net default \
+		    2001:2:${_fib}::2 > /dev/null 2>&1
+
+		testtx_ulp6_connected "${_n}${_fib}" "${_o}" ${_fib}
+
+		# Delete default route again.
+		setfib -F${_fib} route delete -inet6 -net default \
+		    > /dev/null 2>&1
+		_fib=$((_fib + 1))
+	done
+
+	# Restore PEERADDR
+	PEERADDR=${_p}
+
+	# Cleanup default routes, transfer networks, and firewall.
+	_fib=0
+	while test ${_fib} -lt ${RT_NUMFIBS}; do
+		setfib -F${_fib} route delete -inet6 -net default \
+		    > /dev/null 2>&1
+		ifconfig ${IFACE} inet6 2001:2:${_fib}::1/64 -alias \
+		    > /dev/null 2>&1
+		_fib=$((_fib + 1))
+	done
+	ipfw delete 10 > /dev/null 2>&1
+}
+
+testtx_icmp6_transfernets_gateway()
+{
+
+	testtx_ulp6_transfernets_gateway \
+	    "testtx_icmp6_transfernets_gateway" "-i"
+}
+
+
+testtx_tcp6_transfernets_gateway()
+{
+
+	testtx_ulp6_transfernets_gateway \
+	    "testtx_tcp6_transfernets_gateway" ""
+}
+
+testtx_udp6_transfernets_gateway()
+{
+
+	testtx_ulp6_transfernets_gateway \
+	    "testtx_udp6_transfernets_gateway" "-u"
+}
+
+
+################################################################################
+#
+# RX tests (Remotely originated connections).  The FIB tests happens on peer.
+#
+#	# For IPFW, IFCONFIG
+#	#   For each FIB
+#	#     Send OOB well known to work START, wait for reflect
+#	#     Send probe, wait for reply with FIB# or RST/ICMP6 unreach
+#	#       (in case of ICMP6 use magic like ipfw count and OOB reply)
+#	#     Send OOB well known to work DONE, wait for reflect
+#	#     Compare real with expected results.
+#
+testrx_results()
+{
+	local _r _n _fib i count _instances _transfer _o
+	_fib="$1"
+	_n="$2"
+	_r="$3"
+	_instances=$4
+	_transfer=$5
+	_o="$6"
+
+	print_debug "testrx_results ${_fib} ${_n} ${_r} ${_instances}"
+
+	# Trim "RESULT "
+	_r=${_r#* }
+
+	echo "1..${RT_NUMFIBS}"
+	while read i count; do
+		if test ${_instances} -gt 1; then
+			if test ${count} -gt 0; then
+				echo "ok ${i} ${_n}result_${i} #" \
+				     "FIB ${i} ${count} (tested)"
+			else
+				echo "not ok ${i} ${_n}result_${i} #" \
+				     "FIB ${i} ${count} (tested)"
+			fi
+		else
+			case ${i} in
+			${_fib})
+				if test ${count} -gt 0; then
+					echo "ok ${i} ${_n}result_${i} #" \
+					     "FIB ${i} ${count} (tested)"
+				else
+					echo "not ok ${i} ${_n}result_${i} #" \
+					     "FIB ${i} ${count} (tested)"
+				fi
+				;;
+			*)	if test ${count} -eq 0; then
+					echo "ok ${i} ${_n}result_${i} #" \
+					    "FIB ${i} ${count}"
+				else
+					echo "not ok ${i} ${_n}result_${i} #" \
+					    "FIB ${i} ${count}"
+				fi
+				;;
+			esac
+		fi
+		i=$((i + 1))
+	done <<EOI
+`echo "${_r}" | tr ',' '\n'`
+EOI
+
+}
+
+testrx_tcp_udp()
+{
+	local _n _o _f testno i _fibtxt _instances _res _port _transfer _p
+	_n="$1"
+	_o="$2"
+	_f="$3"
+	_instances=$4
+	_transfer=$5
+
+	# Unused so far.
+	: ${_instances:=1}
+
+	printf "1..%d\n" `expr 2 \* ${RT_NUMFIBS}`
+	testno=1
+	i=0
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		print_debug "Testing ${_f} ${i}"
+
+		# We are expecting the FIB number (only) to be returned.
+		eval _rc="\${rc_${i}_l}"
+		_fibtxt="${_n}_${i}_l ${_f} ${i} ${PEERLINKLOCAL}"
+		if test ${_instances} -gt 1; then
+			_res="FIB ${i}"
+			_port=$((CTRLPORT + 1000 + i))
+		else
+			_res="${_fibtxt}"
+			_port=${CTRLPORT}
+		fi
+		nc_send_recv ${i} 1 "${_fibtxt}" "${_res}" ${PEERLINKLOCAL} \
+		    ${_port} "-6 ${_o} -w1"
+		check_rc $? ${_rc} ${testno} "${_fibtxt}" "${_reply}"
+		testno=$((testno + 1))
+
+		# If doing multiple transfer networks, replace PEERADDR.
+		_p="${PEERADDR}"
+		case ${_transfer} in
+		1)	PEERADDR=2001:2:${i}::2 ;;
+		esac
+
+		eval _rc="\${rc_${i}_a}"
+		_fibtxt="${_n}_${i}_a ${_f} ${i} ${PEERADDR}"
+		if test ${_instances} -gt 1; then
+			_res="FIB ${i}"
+			_port=$((CTRLPORT + 1000 + i))
+		else
+			_res="${_fibtxt}"
+			_port=${CTRLPORT}
+		fi
+		nc_send_recv ${i} 1 "${_fibtxt}" "${_res}" ${PEERADDR} \
+		    ${_port} "-6 ${_o} -w1"
+		check_rc $? ${_rc} ${testno} "${_fibtxt}" "${_reply}"
+		testno=$((testno + 1))
+
+		# Restore PEERADDR.
+		PEERADDR="${_p}"
+
+		i=$((i + 1))
+	done
+}
+
+
+testrx_setup_transfer_networks()
+{
+	local i
+
+	i=0
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		ifconfig ${IFACE} inet6 2001:2:${i}::1/64 -alias \
+		    > /dev/null 2>&1 || true
+		ifconfig ${IFACE} inet6 2001:2:${i}::1/64 alias
+		i=$((i + 1))
+	done
+}
+
+testrx_cleanup_transfer_networks()
+{
+	local i
+
+	i=0
+	while test ${i} -lt ${RT_NUMFIBS}; do
+		ifconfig ${IFACE} inet6 2001:2:${i}::1/64 -alias \
+		    > /dev/null 2>&1
+		i=$((i + 1))
+	done
+}
+
+
+testrx_run_test()
+{
+	local _n _t _fib _o _txt _msg i _reply _instances _destructive _transfer
+	_n="$1"
+	_t="$2"
+	_fib=$3
+	_o="$4"
+	_instances=$5
+	_detsructive=$6
+	_transfer=$7
+
+	# Netcat options (for UDP basically).
+	case "${_o}" in
+	-i)	_opts="" ;;		# Use TCP for START/DONE.
+	*)	_opts="${_o}" ;;
+	esac
+
+	# Combined test case base name.
+	case ${USE_SOSETFIB} in
+	0)	_f="setfib" ;;
+	1)	_f="so_setfib" ;;
+	*)	die "Unexpected value for SO_SETFIB: ${SO_SETFIB}" ;;
+	esac
+	_txt="${_n}_${_f}_${_t}_${_fib}_${_instances}_${_detsructive}_${_transfer}"
+
+	print_debug "Starting test '${_txt}' (for ${_instances} instances)."
+
+	case ${_transfer} in
+	1)	testrx_setup_transfer_networks ;;
+	esac
+
+	# Let the other side a chance to get ready as well.
+	sleep 1
+
+	set +e
+	# Let peer know that we are about to start.
+	_msg="START ${_txt}"
+	nc_send_recv ${_fib} ${WAITS} "${_msg}" "${_msg}" ${PEERADDR} \
+	    ${CTRLPORT} "-6 ${_opts} -w1"
+	case $? in
+	0)	;;
+	*)	die "Got invalid reply from peer." \
+		    "Expected '${_msg}', got '${_reply}'" ;;
+	esac
+
+	# Let the other side a chance to get ready as well.
+	sleep 1
+
+	# Send probe.
+	case "${_o}" in
+	-i)	testtx_icmp6 "${_txt}_" ${_transfer} ;;
+	*)	testrx_tcp_udp "${_txt}" "${_o}" "${_fib}" ${_instances} \
+		    ${_transfer} ;;
+	esac
+
+	# Let peer know that we are done with this test to move to next.
+	# This must immediately succeed.
+	_msg="DONE ${_txt}"
+	nc_send_recv ${_fib} ${WAITS} "${_msg}" "${_msg}" ${PEERADDR} \
+	    ${CTRLPORT} "-6 ${_opts} -w1"
+	case $? in
+	0)	;;
+	*)	die "Got invalid reply from peer." \
+		    "Expected '${_msg}', got '${_reply}'" ;;
+	esac
+
+	# Collect and validate the results.   Always use TCP.
+	sleep 1
+	set +e
+	nc_send_recv ${_fib} 1 "RESULT REQUEST" "" ${PEERADDR} \
+	    ${CTRLPORT} "-6 -w1"
+	case "${_reply}" in
+	RESULT\ *) testrx_results ${_fib} "${_txt}_" "${_reply}" ${_instances} \
+			${_transfer} "${_o}"
+		;;
+	*)	die "Got invalid reply from peer." \
+		    "Expected 'RESULT ...', got '${_reply}'" ;;
+	esac
+	set -e
+
+	case ${_transfer} in
+	1)	testrx_cleanup_transfer_networks ;;
+	esac
+
+	print_debug "Successfully received status update '${_reply}'."
+}
+
+testrx_main_setup_rc()
+{
+	local _n _t _fib _o _instances _destructive _transfer i
+	_n="$1"
+	_t="$2"
+	_fib=$3
+	_o="$4"
+	_instances=$5
+	_destructive=$6
+	_transfer=$7
+
+	# Setup expected return values.
+	if test ${_destructive} -eq 0; then
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			eval rc_${i}_l=0
+			eval rc_${i}_a=0
+			i=$((i + 1))
+		done
+	else
+		i=0
+		while test ${i} -lt ${RT_NUMFIBS}; do
+			eval rc_${i}_l=0
+			case ${i} in
+			${_fib})	eval rc_${i}_a=0 ;;
+			*)	# ICMP6 cannot be distinguished and will
+				# always work in single transfer network.
+				case "${_o}" in
+				-i)	case ${_transfer} in
+					0) eval rc_${i}_a=0 ;;
+					1) eval rc_${i}_a=1 ;;
+					esac
+					;;
+				*)	if test ${_instances} -eq 1 -a \
+					    ${_transfer} -eq 0; then
+						eval rc_${i}_a=0
+					else
+						eval rc_${i}_a=1
+					fi
+					;;
+				esac
+				;;
+			esac
+			i=$((i + 1))
+		done
+	fi
+
+	print_debug "${_n}_${t}_${_fib} ${_instances} ${_destructive}" \
+	    "${_transfer}"
+	testrx_run_test "${_n}" "${t}" ${_fib} "${_o}" ${_instances} \
+	    ${_destructive} ${_transfer}
+}
+
+testrx_main()
+{
+	local _n _o s t _fib _instances _destructive _transfer
+	_n="$1"
+	_o="$2"
+	_instances=$3
+
+	: ${_instances:=1}
+
+	print_debug "${_n}"
+	for _transfer in 1 0; do
+		for _destructive in 0 1; do
+			for t in ipfw ifconfig; do
+
+				print_debug "${_n}_${t}"
+				_fib=0
+				while test ${_fib} -lt ${RT_NUMFIBS}; do
+
+					testrx_main_setup_rc "${_n}" "${t}" \
+					    ${_fib} "${_o}" ${_instances} \
+					    ${_destructive} ${_transfer}
+
+					_fib=$((_fib + 1))
+				done
+			done
+		done
+	done
+}
+
+################################################################################
+#
+#
+#
+
+testrx_icmp6_same_addr_one_fib_a_time()
+{
+
+	testrx_main \
+	    "testrx_icmp6_same_addr_one_fib_a_time" "-i"
+}
+
+testrx_tcp6_same_addr_one_fib_a_time()
+{
+
+	testrx_main \
+	    "testrx_tcp6_same_addr_one_fib_a_time" ""
+}
+
+
+testrx_udp6_same_addr_one_fib_a_time()
+{
+
+	testrx_main \
+	    "testrx_udp6_same_addr_one_fib_a_time" "-u"
+}
+
+
+################################################################################
+
+testrx_tcp6_same_addr_all_fibs_a_time()
+{
+
+	testrx_main \
+	    "testrx_tcp6_same_addr_all_fibs_a_time" "" ${RT_NUMFIBS}
+}
+
+testrx_udp6_same_addr_all_fibs_a_time()
+{
+
+	testrx_main \
+	    "testrx_udp6_same_addr_all_fibs_a_time" "-u" ${RT_NUMFIBS}
+}
+
+
+################################################################################
+#
+# Prereqs.
+#
+kldload ipfw > /dev/null 2>&1 || kldstat -v | grep -q ipfw 
+
+# Reduce the time we wait in case of no reply to 2s.
+sysctl net.inet.tcp.keepinit=2000 > /dev/null 2>&1
+
+################################################################################
+#
+# Run tests.
+#
+
+# 64 cases at 16 FIBs.
+check_local_addr
+check_local_tun
+
+send_greeting
+
+# Initiator testing.
+for uso in 0 1; do
+
+	USE_SOSETFIB=${uso}
+
+	# Only run ICMP6 tests for the first loop.
+	# 160 cases at 16 FIBs.
+	test ${uso} -ne 0 || testtx_icmp6_connected && sleep 1
+	testtx_tcp6_connected && sleep 1
+	testtx_udp6_connected && sleep 1
+
+	# 2560 cases at 16 FIBs.
+	test ${uso} -ne 0 || testtx_icmp6_connected_blackhole && sleep 1
+	testtx_tcp6_connected_blackhole && sleep 1
+	testtx_udp6_connected_blackhole && sleep 1
+
+	# 2560 cases at 16 FIBs.
+	test ${uso} -ne 0 || testtx_icmp6_connected_transfernets && sleep 1
+	testtx_tcp6_connected_transfernets && sleep 1
+	testtx_udp6_connected_transfernets && sleep 1
+
+	# 2560 cases at 16 FIBs.
+	test ${uso} -ne 0 || \
+	    testtx_icmp6_connected_ifconfig_transfernets && sleep 1
+	testtx_tcp6_connected_ifconfig_transfernets && sleep 1
+	testtx_udp6_connected_ifconfig_transfernets && sleep 1
+
+	# 160 cases at 16 FIBs.
+	test ${uso} -ne 0 || testtx_icmp6_gateway && sleep 1
+	testtx_tcp6_gateway && sleep 1
+	testtx_udp6_gateway && sleep 1
+
+	# 160 cases at 16 FIBs.
+	test ${uso} -ne 0 || testtx_icmp6_transfernets_gateways && sleep 1
+	testtx_tcp6_transfernets_gateways && sleep 1
+	testtx_udp6_transfernets_gateways && sleep 1
+
+	# 2560 cases at 16 FIBs.
+	test ${uso} -ne 0 || testtx_icmp6_transfernets_gateway && sleep 1
+	testtx_tcp6_transfernets_gateway && sleep 1
+	testtx_udp6_transfernets_gateway && sleep 1
+done
+
+# Receiver testering.
+for uso in 0 1; do
+
+	USE_SOSETFIB=${uso}
+
+	# Only expect ICMP6 tests for the first loop.
+	# 6144 cases at 16 FIBs.
+	test ${uso} -ne 0 || testrx_icmp6_same_addr_one_fib_a_time && sleep 1
+	# 12288 cases at 16 FIBs.
+	testrx_tcp6_same_addr_one_fib_a_time && sleep 1
+	# 12288 cases at 16 FIBs.
+	testrx_udp6_same_addr_one_fib_a_time && sleep 1
+
+	# 12288 cases at 16 FIBs.
+	testrx_tcp6_same_addr_all_fibs_a_time && sleep 1
+	# 12288 cases at 16 FIBs.
+	testrx_udp6_same_addr_all_fibs_a_time && sleep 1
+
+done
+
+cleanup
+
+# end