SMC Networks Barricade SMC7401BRA User Manual page 79

Configuring Network Address Translation
To an external Internet user then, it appears as if your Web
server uses your public IP address.
Follow the following instructions to add an RDR rule (see steps
1-4 under The NAPT Rule for specific instructions corresponding
to steps 1 and 2 below):
1. Display the [NAT Rule – Add] Page, select [RDR] as the
[Rule Flavor], if necessary, and enter a [Rule ID].
2. Select the interface on which this rule will be effective.
3. Select a [Protocol] to which this rule applies, or choose [ANY].
This selection specifies which type of Internet communication
will be subject to this translation rule. You can select [ANY] if
the rule applies to all data. Or, select [TCP], [UDP], [ICMP], or
a number from [1-255] that represents the Internet Assigned
Numbers Authority (IANA)-specified protocol number.
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Figure 23. NAT Rule - Add Page (RDR Flavor)