ZyXEL Communications NSA-220 Plus User Manual page 157

In the following example, the Internet gateway's firewall is configured to allow
anyone to access the NSA's web-published screens using port 8080. Web
configurator access (port 80) however, is only allowed from IP address a.b.c.d.
Figure 45 Web Publishing Port Number Example
NSA-220 Plus User's Guide
8080
8080
80
80
Chapter 7 Applications
e.f.g.h
a.b.c.d
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