ZyXEL Communications Corporation NWA1121NI Manuale Utente

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Chapter 1 Introducing the NWA1121-NI
NWA1121-NI User’s Guide
14
1.2.3  Root AP
In Root AP mode, the NWA1121-NI (Z) can act as the root AP in a wireless network and also 
allow 
repeaters (X and Y) to extend the range of its wireless network
 
at the same time. In the figure 
below, both clients AB and C can access the wired network through the root AP.
Figure 3   
Root AP Application 
On the NWA1121-NI in Root AP mode, you can have 
up to four
 
multiple
 SSIDs active for reqular 
wireless connections 
and one SSID for the connection with a repeater (universal repeater SSID)
Wireless clients can use either SSID to associate with the NWA1121-NI in Root AP mode
. A repeater 
must use the 
universal repeater SSID 
to connect to the NWA1121-NI in Root AP mode.
When the NWA1121-NI is in Root AP mode, 
universal repeater 
security between the NWA1121-NI 
and other repeater
 is independent of the security 
between the wireless clients and the AP
 or 
repeater
. If you do not enable 
universal repeater
 security, traffic between APs is not encrypted. 
When 
universal repeater
 security is enabled, 
both APs and repeaters
 must use the same pre-shared 
key. See 
Unless specified, the term “security settings” refers to the traffic between the wireless clients and 
the AP. 
At the time of writing, 
universal repeater
 security is compatible with the NWA1121-NI only. 
1.2.4  Repeater
The NWA can act as a wireless network repeater 
to extend a root AP’s wireless network range, and 
also establish wireless connections with wireless clients
Using Repeater mode, your NWA1121-NI can extend the range of the WLAN. 
In the figure below, 
the NWA1121-NI in Repeater mode (Z) has a wireless connection to the NWA1121-NI in Root AP 
mode (X) which is connected to a wired network and also has a wireless connection to another 
NWA1121-NI in Repeater mode (Y) at the same time.
 Z and Y act as repeaters that forward traffic