ViewCast Niagara 4100, Руководство пользователя

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Overview
12 ViewCast
Connecting to the Internet
The Internet is a dangerous place. Never connect a Niagara appliance directly to the Internet. Always
use a router. A basic router is sufficient to protect the appliance and you can configure the router as
needed to forward specific ports to the appliance. The router’s bandwidth should match or exceed the
speed of the appliance’s network card.
The Shields Up test by Gibson Research ( http://www.grc.com/intro.htm ) is a good utility to verify you do
not expose the Niagara appliance to the Internet. Select to test All service ports . The utility queries the
appliance’s outside IP address for all service ports less than 1056. All of these ports should report as
Stealth and the analysis should show the tests have passed. Ports the router has forwarded show as
open. This is OK and you should consider the test as passed.