Belkin F5D7230-4 User Manual page 52

Wireless Broadband Router User Manual
With the settings above, an external host trying to access your
local Web server should use the address like this:
http://204.71.200.143 (i.e., the WAN IP address):8080
If you do not enter the suffix ":8080", the external host's packets
will contain the standard port number 80 and the router will not
forward the packets since no forwarding entry matches. As a result,
if a WAN computer tries to access the LAN's Web server, it will turn
to access the Web service on the WAN port, i.e., the Web
Configuration Utility of the router instead.
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Figure 4-15 Forwarding