ZyXEL Communications VMG1312-B Series User Manual page 341

I f t he Fr a gm e nt a t ion Thr e shold value is sm aller t han t he RTS/ CTS value ( see previously) you
set t hen t he RTS ( Request To Send) / CTS ( Clear t o Send) handshake will never occur as dat a fram es
will be fragm ent ed before t hey reach RTS/ CTS size.
IEEE 802.11g Wireless LAN
I EEE 802.11g is fully com pat ible wit h t he I EEE 802.11b st andard. This m eans an I EEE 802.11b
adapt er can int erface direct ly wit h an I EEE 802.11g access point ( and vice versa) at 11 Mbps or
lower depending on range. I EEE 802.11g has several int erm ediat e rat e st eps bet ween t he
m axim um and m inim um dat a rat es. The I EEE 802.11g dat a rat e and m odulat ion are as follows:
Table 122 I EEE 802.11g
DATA RATE (MBPS)
1
2
5.5 / 11
6/ 9/ 12/ 18/ 24/ 36/ 48/
54
Wireless Security Overview
Wireless securit y is vit al t o your net work t o prot ect wireless com m unicat ion bet ween wireless
client s, access point s and t he wired net work.
Wireless securit y m et hods available on t he Device are dat a encrypt ion, wireless client
aut hent icat ion, rest rict ing access by device MAC address and hiding t he Device ident it y.
The following figure shows t he relat ive effect iveness of t hese wireless securit y m et hods available on
your Device.
Table 123 Wireless Securit y Levels
SECURITY
LEVEL
Least
Secure
Most Secure
Not e: You m ust enable t he sam e wireless securit y set t ings on t he Device and on all
wireless client s t hat you want t o associat e wit h it .
VMG1312-B Series User's Guide
MODULATION
DBPSK ( Different ial Binary Phase Shift Keyed)
DQPSK ( Different ial Quadrat ure Phase Shift Keying)
CCK ( Com plem ent ary Code Keying)
OFDM ( Ort hogonal Frequency Division Mult iplexing)
SECURITY TYPE
Unique SSI D ( Default )
Unique SSI D wit h Hide SSI D Enabled
MAC Address Filt ering
WEP Encrypt ion
I EEE802.1x EAP wit h RADI US Server Aut hent icat ion
Wi- Fi Prot ect ed Access ( WPA)
WPA2
Appendix D Wireless LANs
341