## Fill in the black holes in the network.
for addr in \
10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 \
- 127.0.0.0/8 192.0.2.0/24
+ 127.0.0.0/8 \
+ 192.0.2.0/24 198.51.100.0/24 203.0.113.0/24
do
run iptables -t mangle -A in-default -s $addr -g bad-source-address
done