PLANET IPX-1500 - Manual (Page 35)

IP-3, and user still can access the server formerly.
To contrast the standard and Virtual DMZ framework, because all traffic through server Public IP2 and
Public IP3 will be control by IPX-1500, The IPX-1500 have more authority to provide bandwidth for
VoIP
Another important point is the protecting by Firewall. All accessing can be defended and filtered by
IPX-1500. But one thing have to be pay attention, the factory setting about allows all service to pass
through Firewall. So you need to configure your Firewall before contract the Virtual DMZ framework.
The IPX Address Mapping framework
IPX system’s address mapping framework is designed for the service like Oracle, Internet’s user can
access MySQL existing in intranet.
The point is user accessing the service through virtual IP normally. If you permit user accessing from
Internet, you have to step up a public IP mapping to a private IP. Besides the address mapping, you
can do the work using Port mapping. The matter is the protocol of some service using random port.
The advantage of traffic control provides by Virtual DMZ also by Address Mapping, but you need pay
attention to the configuration of firewall.
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