Draytek VigorPro 5500 Series User Manual page 144

Index (1-15)
SSID
Channel
Hide SSID
Long Preamble
136
11b only - The radio only supports IEEE802.11b.
Set the wireless LAN to work at certain time interval
only. You may choose up to 4 schedules out of the 15
schedules pre-defined in Applications >> Schedule
setup. The default setting of this filed is blank and the
function will always work.
The default SSID is "default". We suggest you change it
to a particular name. It is the identification of the wireless
LAN. SSID can be any text numbers or various special
characters.
The channel of frequency of the wireless LAN. The
default channel is 6. You may switch channel if the
selected channel is under serious interference.
Check it to prevent from wireless sniffing and make it
harder for unauthorized clients or STAs to join your
wireless LAN. Depending on the wireless utility, the user
may only see the information except SSID or just cannot
see any thing about Vigor wireless router while site
surveying.
This option is to define the length of the sync field in an
802.11 packet. Most modern wireless network uses short
preamble with 56 bit sync filed instead of long preamble
with 128 bit sync field. However, some original 11b
wireless network devices only support long preamble.
Check it to use Long Preamble if needed to
communicate with this kind of devices.
VigorPro5500 Series User's Guide