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It's a little unusual I should think to have a port with a public IP address &quot;point to&quot; a single internal IP address via NAT. &nbsp;And then another doing the same thing to the same internal address.<br />
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If that's the case then I should think you would route without NAT at all. &nbsp;That's a more classical router function without the embellishment of NAT. &nbsp;So, packets coming in from a particular port with a public address would be routed to a port toward a particular private IP address range which would have the size of 1.<br />
There could be multiple public ports that way and multiple routes to the private port/range.<br />
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e.g. &nbsp;1.1.1.1 to `192.168.1.1/32 i.e. 255.255.255.255<br />
and 2.2.2.2 to 192.168.1.1/32 also.<br />
and no NAT.
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It's a little unusual I should think to have a port with a public IP address "point to" a single internal IP address via NAT.  And then another doing the same thing to the same internal address.

If that's the case then I should think you would route without NAT at all.  That's a more classical router function without the embellishment of NAT.  So, packets coming in from a particular port with a public address would be routed to a port toward a particular private IP address range which would have the size of 1.
There could be multiple public ports that way and multiple routes to the private port/range.

e.g.  1.1.1.1 to `192.168.1.1/32 i.e. 255.255.255.255
and 2.2.2.2 to 192.168.1.1/32 also.
and no NAT.

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Is there any way to configure a Cisco ASA to have (2) Public IP's point to the same internal resource? &nbsp;I.E. have an FTP server available on (2) separate IP's pointing to the same internal IP address?<br />
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When I try to configure this, the CLI complains about an existing NAT and does not allow the command to be entered.
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Is there any way to configure a Cisco ASA to have (2) Public IP's point to the same internal resource?  I.E. have an FTP server available on (2) separate IP's pointing to the same internal IP address?

When I try to configure this, the CLI complains about an existing NAT and does not allow the command to be entered.

Cisco ASA 5505 - Multiple Public IP's going to the same internal PRIVATE IP address

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

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Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.