allowservices inbound-untrusted tcp \
dns \
+ lpd \
netbios_ssn microsoft_ds
allowservices inbound-untrusted udp \
dns \
dnsserver inbound
ntpclient inbound $ntp_servers
+## Provide NTP service to untrusted clients.
+iptables -A inbound -p udp -j ACCEPT \
+ --source-port 123 --destination-port 123 \
+ -s 172.29.198.0/23
+ip6tables -A inbound -p udp -j ACCEPT \
+ --source-port 123 --destination-port 123 \
+ -s 2001:470:9740::/48
+
m4_divert(-1)
###----- That's all, folks --------------------------------------------------