Is there any way to list down all the Nat'ted IP addresses along with the actual IP address in Gaia?
You can get the IPs the firewall is arping for (and thus performing NAT for) using the command fw ctl arp.
This applies to automatic NAT rules.
For manual rules, you may need to list the static proxy ARPs you've configured in local.arp and/or through the Gaia OS (depending on version).
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