Filtering RFC1918 Addresses

Mikrotik RouterOS

1. Define an RFC1918 address list

   /ip firewall address-list
   add address=10.0.0.0/8 list=RFC1918
   add address=172.16.0.0/12 list=RFC1918
   add address=192.168.0.0/16 list=RFC1918

2. Perform NAT on traffic coming into AMPR from RFC1918 space

   /ip firewall nat
   add action=masquerade chain=srcnat src-address-list=RFC1918

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