@@ -61,9 +61,20 @@ ip -net "$ns2" a a 192.168.42.1/24 dev d0
ip -net "$ns1" a a fec0:42::2/64 dev v0 nodad
ip -net "$ns2" a a fec0:42::1/64 dev d0 nodad
+# avoid neighbor lookups and enable martian IPv6 pings
+ns2_hwaddr=$(ip -net "$ns2" link show dev v0 | \
+ sed -n 's, *link/ether \([^ ]*\) .*,\1,p')
+ns1_hwaddr=$(ip -net "$ns1" link show dev v0 | \
+ sed -n 's, *link/ether \([^ ]*\) .*,\1,p')
+ip -net "$ns1" neigh add fec0:42::1 lladdr "$ns2_hwaddr" nud permanent dev v0
+ip -net "$ns1" neigh add fec0:23::1 lladdr "$ns2_hwaddr" nud permanent dev v0
+ip -net "$ns2" neigh add fec0:42::2 lladdr "$ns1_hwaddr" nud permanent dev d0
+ip -net "$ns2" neigh add fec0:23::2 lladdr "$ns1_hwaddr" nud permanent dev v0
+
# firewall matches to test
[ -n "$iptables" ] && {
common='-t raw -A PREROUTING -s 192.168.0.0/16'
+ common+=' -p icmp --icmp-type echo-request'
if ! ip netns exec "$ns2" "$iptables" $common -m rpfilter;then
echo "Cannot add rpfilter rule"
exit $ksft_skip
@@ -72,6 +83,7 @@ ip -net "$ns2" a a fec0:42::1/64 dev d0 nodad
}
[ -n "$ip6tables" ] && {
common='-t raw -A PREROUTING -s fec0::/16'
+ common+=' -p icmpv6 --icmpv6-type echo-request'
if ! ip netns exec "$ns2" "$ip6tables" $common -m rpfilter;then
echo "Cannot add rpfilter rule"
exit $ksft_skip
@@ -82,8 +94,10 @@ ip -net "$ns2" a a fec0:42::1/64 dev d0 nodad
table inet t {
chain c {
type filter hook prerouting priority raw;
- ip saddr 192.168.0.0/16 fib saddr . iif oif exists counter
- ip6 saddr fec0::/16 fib saddr . iif oif exists counter
+ ip saddr 192.168.0.0/16 icmp type echo-request \
+ fib saddr . iif oif exists counter
+ ip6 saddr fec0::/16 icmpv6 type echo-request \
+ fib saddr . iif oif exists counter
}
}
EOF