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DTUS065 rev A.7 – June 27, 2014
V.2.4
Wireless Network Name
This name is also referred to as the SSID and serves as a wireless network
identifier.
A service set identifier, or SSID, is a name used to identify the specific
802.11 wireless LAN to which a user wishes to access. A client device will
receive broadcast messages from all access points within range, advertising
their SSIDs, and can choose one to connect to, based on pre-configuration,
or by displaying a list of SSIDs in range and asking the user to select one.
Devices participating in a Wi-Fi communication must all use the same SSID.
When you are browsing for available wireless networks, this name will
appear in the list. For security purposes we highly recommend changing the
pre-configured network name.
The SSID used in 802.11s Mesh mode is called “mesh ID”. It takes the same
form as the infrastructure SSID, but is a separate parameter: if you use the
same string for an infrastructure SSID and a mesh ID, they are considered as
two distinct WLANs.
V.2.5
Virtual AP (multi-SSID) and multifunction cards
The WLn products can handle several virtual functions (interfaces)) on a
single radio card, within certain limits. For example, one radio device can be
used to advertise several SSID, simulating several real APs at once, together
with one mesh point.
When one radio card supports simultaneous virtual interfaces
they must all
be set to the same channel
(hence the client scanning must be restricted to
the channel you selected, and multichannel roaming is impossible). The
channel bandwidth is therefore shared
between all interfaces.
Until firmware v2.2.x the multifunction limits are 4 virtual AP, one client,
one mesh point and one ad-hoc station simultaneously per card. Starting
with firmware v2.4.0 the limits are indicated on the web interface, page
“Setup / Physical interfaces Overview”.
