ZyXEL Communications MWR222 - V1.0 Guia do Utilizador Página 179

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MWR211 User’s Guide
179
See the NAT chapter for more information on NAT.
22.3.2 Cautions with UPnP
The automated nature of NAT traversal applications in establishing their own
services and opening firewall ports may present network security issues. Network
information and configuration may also be obtained and modified by users in
some network environments.
When a UPnP device joins a network, it announces its presence with a multicast
message. For security reasons, the MWR222 allows multicast messages on the
LAN only.
All UPnP-enabled devices may communicate freely with each other without
additional configuration. Disable UPnP if this is not your intention.
22.4 UPnP Screen
Use this screen to enable UPnP on your MWR222.
Click Management > UPnP to display the screen shown next.
Figure 91 Management >
UPnP
The following table describes the fields in this screen.
Table 61 Management > UPnP
LABEL DESCRIPTION
Enable the Universal
Plug and Play (UPnP)
Feature
Select this check box to activate UPnP. Be aware that anyone
could use a UPnP application to open the web configurator's
login screen without entering the MWR222's IP address
(although you must still enter the password to access the web
configurator).
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