I see this tutorial, http://djinnsour.com/2015/08/23/adding-a-public-ip-address-to-a-system-behind-pfsense-using-nat-11/. Author of this blog say, add external ip to this network, so what is the public ip ( whatismyip ) of that machine?

  • Did any answer help you? If so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you could provide and accept your own answer. – Ron Maupin Aug 14 '17 at 23:39

Referring to that tutorial, the external IP address (routable) would be the 222.222.222.x range address.

Anything within 192.168.x.x will be a private range which can only be used internally as per RFC1918 hence why you would use NAT.

Hope this helps you on your quest.


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  • yes, thank you but that not i want. Is mean they type and become public ip, not liked public ip have been available like we know.? what is that about? – sukihinata Aug 17 '16 at 12:56
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    That is a valid public IP but obviously it is only an example. This particular IP range is belongs to China and has been assigned to China Telecom hebei. – SleepyMan Aug 17 '16 at 13:02
  • Yes they should have use an IP from rfc5737 but not everybody is aware of this, it's common to pick any IP as example rather than the official documentation IPs. – JFL Sep 16 '16 at 10:24

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