Casio ISA550WBUN3K9 manual As Any, Http

Firewall	6
Configuring NAT Rules to Securely Access a Remote Network

For example, you host a HTTP server (192.168.75.20) on your LAN. Your ISP has provided a static IP address (1.1.1.3) that you want to expose to the public as your HTTP server address. You want to allow Internet user to access the internal HTTP server by using the specified public IP address.

Solution: Assuming that the IP address of the WAN1 port is 1.1.1.2 and you are assigned another public IP address 1.1.1.3. You can first create a host address object with the IP 192.168.75.20 called “HTTPServer” and a host address object with the IP 1.1.1.3 called “PublicIP”, and then configure an advanced NAT rule as follows to open the HTTP server to the Internet.

From	WAN1
	NOTE: It must be set as a WAN port and cannot be set
	as Any.
To	Any
Original Source	Any
Address
Original Destination	PublicIP
Address
Original Services	HTTP
Translated Source	Any
Address
Translated	HTTPServer
Destination Address
Translated Services	HTTP

Use Case: The outbound interface (To) is set to a WAN port but the translated source IP address (Translated Source Address) is different with the public IP address of the selected WAN port.

For example, you have provided a static IP address (1.1.1.3). The security appliance is set as a SSL VPN server. You want to translate the IP addresses of the SSL VPN clients to the specified public IP address when the SSL VPN clients access the Internet.

Cisco ISA500 Series Integrated Security Appliances Administration Guide 271