User`s guide

Chapter 1 Introducing the ZyXEL Device
NWA3550 User’s Guide
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Figure 5 Multiple BSSs
1.2.5 Pre-Configured SSID Profiles
The ZyXEL Device has two pre-configured SSID profiles.
1 VoIP_SSID. This profile is intended for use by wireless clients requiring the highest
QoS (Quality of Service) level for VoIP (Voice over IP) telephony and other applications
requiring low latency. The QoS level of this profile is not user-configurable. See Chapter
6 on page 85 for more information on QoS.
2 Guest_SSID. This profile is intended for use by visitors and others who require access
to certain resources on the network (an Internet gateway or a network printer, for
example) but must not have access to the rest of the network. Layer 2 isolation is enabled
(see Section 9.1 on page 121), and QoS is set to NONE. Intra-BSS traffic blocking is
also enabled (see Section 8.2 on page 117). These fields are all user-configurable.
1.2.6 Configuring Dual WLAN Adaptors
The ZyXEL Device is equipped with dual wireless adaptors. This means you can configure
two different wireless networks to operate simultaneously.
In the following example, the ZyXEL Device (Z) uses WLAN1 in AP+Bridge mode to allow
IEEE 802.11b/g APs and clients to communicate with the wired network, and WLAN2 in
Access Point mode to allow IEEE 802.11a clients to access the wired network.
Internet
LAN
VoIP_SSID
SSID03
Guest_SSID