## Other interesting things.
dnsresolver inbound
+## IPv6 6-in-4 tunnel.
+run iptables -A inbound -j ACCEPT \
+ -p $proto_ipv6 -s 216.66.80.26
+
## NAT for RFC1918 addresses.
for i in PREROUTING OUTPUT POSTROUTING; do
run iptables -t nat -P $i ACCEPT 2>/dev/null || :