ZyXEL nbg-4615 用户指南

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Chapter 27 Universal Plug-and-Play (UPnP)
NBG4615 User’s Guide
218
27.2.2  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 NBG4615 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. 
27.3  UPnP Screen 
Use this screen to enable UPnP on your NBG4615.
Click Management > UPnP to display the screen shown next. 
Figure 123   Management > UPnP
The following table describes the fields in this screen.
Table 80   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 NBG4615's IP address 
(although you must still enter the password to access the web 
configurator).
Apply
Click Apply to save the setting to the NBG4615.
Cancel
Click Cancel to return to the previously saved settings.