Short for
service set identifier, a 32-
character unique identifier attached to the
header of
packets sent over a
WLAN that acts as a password when a mobile
device tries to connect to the
BSS. The SSID differentiates one WLAN from another, so all
access points and all devices attempting to connect to a specific WLAN must use the same SSID. A device will not be permitted to join the BSS unless it can provide the unique SSID. Because an SSID can be
sniffed in
plain text from a packet it does not supply any security to the network.
An SSID is also referred to as a network name because essentially it is a name that identifies a wireless network.