ZyXEL Communications P-873HNUP-51B Support Notes page 54

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2. Using the UPnP in ZyXEL devices.
In this example, we will introduce how to enable the UPnP function in ZyXEL
devices. Currently, Microsoft MSN is the most popular application exploiting the
UPnP, so we take Microsoft MSN application as an example in this support note. You
can learn how MSN benefits from the NAT traversal feature in UPnP in this
application note.
In the diagram, supposing that PC1 and PC2 both sign in MSN server, they would
like to establish a video conference. The PC1 is behind the PPPoE dial-up router
which supports the UPnP. Since the router supports the UPnP, we don't need to
setup the NAT mapping for PC1. As long as we enable the UPnP function on the
router, the PC1 will assign the mapping to the router dynamically. Note that, since
the PC1 must support UPnP, we presume that its OS is Microsoft WinME or WinXP.
Device: Device Router
Service: NAT function provided by device Router
Control Point: PC1
All contents copyright (c) 2011 ZyXEL Communications Corporation.
P-873HNUP-51B Support Notes