<s>
A	O
wireless	B-General_Concept
distribution	I-General_Concept
system	I-General_Concept
(	O
WDS	O
)	O
is	O
a	O
system	O
enabling	O
the	O
wireless	O
interconnection	O
of	O
access	O
points	O
in	O
an	O
IEEE	O
802.11	O
network	O
.	O
</s>
<s>
An	O
access	B-Device
point	I-Device
can	O
be	O
either	O
a	O
main	O
,	O
relay	O
,	O
or	O
remote	O
base	O
station	O
.	O
</s>
<s>
All	O
base	O
stations	O
in	O
a	O
wireless	B-General_Concept
distribution	I-General_Concept
system	I-General_Concept
must	O
be	O
configured	O
to	O
use	O
the	O
same	O
radio	O
channel	O
,	O
method	O
of	O
encryption	O
(	O
none	O
,	O
WEP	B-Protocol
,	O
WPA	O
or	O
WPA2	O
)	O
and	O
the	O
same	O
encryption	O
keys	O
.	O
</s>
<s>
WDS	O
may	O
also	O
be	O
considered	O
a	O
repeater	O
mode	O
because	O
it	O
appears	O
to	O
bridge	O
and	O
accept	O
wireless	O
clients	O
at	O
the	O
same	O
time	O
(	O
unlike	O
traditional	B-Protocol
bridging	I-Protocol
)	O
.	O
</s>
<s>
This	O
is	O
because	O
Wi-Fi	O
is	O
an	O
inherently	O
half	O
duplex	O
medium	O
and	O
therefore	O
any	O
Wi-Fi	O
device	O
functioning	O
as	O
a	O
repeater	O
must	O
use	O
the	O
Store	B-Protocol
and	I-Protocol
forward	I-Protocol
method	O
of	O
communication	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
only	O
static	O
WEP	B-Protocol
or	O
WPA	O
keys	O
may	O
be	O
used	O
in	O
a	O
WDS	O
connection	O
,	O
including	O
any	O
STAs	O
that	O
associate	O
to	O
a	O
WDS	O
repeating	O
AP	O
.	O
</s>
<s>
OpenWRT	B-Application
,	O
a	O
universal	O
third	O
party	O
router	O
firmware	O
,	O
supports	O
WDS	O
with	O
WPA-PSK	O
,	O
WPA2-PSK	O
,	O
WPA-PSK/WPA2	O
-PSK	O
Mixed-Mode	O
encryption	O
modes	O
.	O
</s>
<s>
Firmware	O
for	O
the	O
Renasis	O
SAP36g	O
super	O
access	B-Device
point	I-Device
and	O
most	O
third	O
party	O
firmware	O
for	O
the	O
Linksys	O
WRT54G(S )	O
/GL	O
support	O
AES	O
encryption	O
using	O
WPA2-PSK	O
mixed-mode	O
security	O
,	O
and	O
TKIP	O
encryption	O
using	O
WPA-PSK	O
,	O
while	O
operating	O
in	O
WDS	O
mode	O
.	O
</s>
<s>
End	O
to	O
end	O
latency	O
introduced	O
here	O
is	O
in	O
the	O
"	O
store	B-Protocol
and	I-Protocol
forward	I-Protocol
"	O
delay	O
associated	O
with	O
the	O
remote	O
station	O
forwarding	O
packets	O
.	O
</s>
