## We have to provide NTP service. The guests sync to our clock.
ntpclient inbound $ntp_servers
+## Provide NTP service to untrusted clients.
+run ip46tables -A inbound-untrusted -p udp -j ACCEPT \
+ --source-port 123 --destination-port 123
+
## Guaranteed black hole. Put this at the very front of the chain.
-run iptables -I INPUT -d 212.13.198.78 -j DROP
-run ip6tables -I INPUT -d 2001:ba8:0:1d9::ffff -j DROP
+run iptables -I INPUT -d 217.169.12.78 -j DROP
+run ip6tables -I INPUT -d 2001:8b0:c92:fff::ffff -j DROP
m4_divert(-1)
###----- That's all, folks --------------------------------------------------