BOGON Address List
From MikroTik Wiki
See also Generate bogons firewall chain based on routing-marks
You can use this Bogon list with your firewall config, replacing the illegal-addr address lists from the Dmitry on firewalling rules.
/ip firewall address-list add list="BOGONS" address=0.0.0.0/8 add list="BOGONS" address=10.0.0.0/8 add list="BOGONS" address=100.64.0.0/10 add list="BOGONS" address=127.0.0.0/8 add list="BOGONS" address=169.254.0.0/16 add list="BOGONS" address=172.16.0.0/12 add list="BOGONS" address=192.0.0.0/24 add list="BOGONS" address=192.0.2.0/24 add list="BOGONS" address=192.168.0.0/16 add list="BOGONS" address=198.18.0.0/15 add list="BOGONS" address=198.51.100.0/24 add list="BOGONS" address=203.0.113.0/24 add list="BOGONS" address=224.0.0.0/3
Updated 20/07-2012 according to http://www.cymru.com/Documents/bogon-bn-agg.txt