topic Single Public IP Address NAT to 2 Different DMZ IP Addresses Depending on Source IP in General Topics

Single Public IP Address NAT to 2 Different DMZ IP Addresses Depending on Source IP

jlarson — Tue, 10 Feb 2015 18:11:48 GMT

Here is the problem to be solved:

I have a single public IP address (example: 1.1.1.5) that is currently NATs to a single DMZ address (example: 192.168.1.11).

I need to create a NAT rule that will continue to send all traffic on all ports to 192.168.1.11 address unless the traffic is coming from a specific address, for instance 2.2.2.2.

In other words:

If traffic comes from 2.2.2.2 destined for 1.1.1.5, it will NAT to 192.168.1.12.
If traffic comes from any other external IP destined for 1.1.1.5, it will NAT to 192.168.1.11.

I hope that makes sense. Is this even possible?

We have an F5 LTM and can accomplish the same end result, but would like to do it at the PA if possible.

Thanks, Jim

Re: Single Public IP Address NAT to 2 Different DMZ IP Addresses Depending on Source IP

Retired Member — Tue, 10 Feb 2015 18:33:45 GMT

just create two NAT rules(Untrust-Untrust) one with source 2.2.2.2 other with source any (destination address same 1.1.1.5)

then you can NAT(destination) each to different ip address

Don't forget security rules.

Re: Single Public IP Address NAT to 2 Different DMZ IP Addresses Depending on Source IP

jlarson — Tue, 10 Feb 2015 20:06:49 GMT

Thanks so much for the reply panos. I was using source address translation and dug deeper into Destination NAT and saw exactly what you were explaining.

Anyway, I set it up and it works perfectly!

Jim