<s>
In	O
computer	B-Architecture
networking	I-Architecture
,	O
Cisco	B-Language
ASA	I-Language
5500	O
Series	O
Adaptive	O
Security	O
Appliances	O
,	O
or	O
simply	O
Cisco	B-Language
ASA	I-Language
,	O
is	O
Cisco	O
's	O
line	O
of	O
network	O
security	O
devices	O
introduced	O
in	O
May	O
2005	O
.	O
</s>
<s>
Cisco	B-Device
PIX	I-Device
,	O
which	O
provided	O
firewall	B-Application
and	O
network	B-Protocol
address	I-Protocol
translation	I-Protocol
(	O
NAT	O
)	O
functions	O
,	O
ended	O
its	O
sale	O
on	O
July	O
28	O
,	O
2008	O
.	O
</s>
<s>
Cisco	O
VPN	B-Application
3000	O
Series	O
Concentrators	O
,	O
which	O
provided	O
virtual	B-Application
private	I-Application
networking	I-Application
(	O
VPN	B-Application
)	O
.	O
</s>
<s>
The	O
Cisco	B-Language
ASA	I-Language
is	O
a	O
unified	O
threat	O
management	O
device	O
,	O
combining	O
several	O
network	O
security	O
functions	O
in	O
one	O
box	O
.	O
</s>
<s>
Cisco	B-Language
ASA	I-Language
has	O
become	O
one	O
of	O
the	O
most	O
widely	O
used	O
firewall/VPN	O
solutions	O
for	O
small	O
to	O
medium	O
businesses	O
.	O
</s>
<s>
A	O
security	O
flaw	O
was	O
identified	O
when	O
users	O
customized	O
the	O
Clientless	O
SSL	B-Protocol
VPN	B-Application
option	O
of	O
their	O
ASA	O
's	O
but	O
was	O
rectified	O
in	O
2015	O
.	O
</s>
<s>
The	O
names	O
of	O
firmware	O
files	O
includes	O
a	O
version	O
indicator	O
,	O
-smp	O
means	O
it	O
is	O
for	O
a	O
symmetrical	B-Operating_System
multiprocessor	I-Operating_System
(	O
and	O
64	O
bit	O
architecture	O
)	O
,	O
and	O
different	O
parts	O
also	O
indicate	O
if	O
3DES	B-Algorithm
or	O
AES	B-Algorithm
is	O
supported	O
or	O
not	O
.	O
</s>
<s>
The	O
ASA	O
software	O
has	O
a	O
similar	O
interface	O
to	O
the	O
Cisco	B-Protocol
IOS	I-Protocol
software	O
on	O
routers	O
.	O
</s>
<s>
This	O
enables	O
more	O
VLANs	B-General_Concept
,	O
or	O
VPN	B-Application
peers	O
,	O
and	O
also	O
high	O
availability	O
.	O
</s>
<s>
Cisco	O
AnyConnect	O
is	O
an	O
extra	O
licensable	O
feature	O
which	O
operates	O
IPSec	B-Protocol
or	O
SSL	B-Protocol
tunnels	O
to	O
clients	O
on	O
PCs	O
,	O
iPhones	O
or	O
iPads	O
.	O
</s>
<s>
It	O
included	O
features	O
to	O
reduce	O
the	O
need	O
for	O
other	O
equipment	O
,	O
such	O
as	O
an	O
inbuilt	O
switch	O
,	O
and	O
power	B-Device
over	I-Device
Ethernet	I-Device
ports	O
.	O
</s>
<s>
The	O
5585-X	O
is	O
a	O
higher	O
powered	O
unit	O
for	O
datacenters	B-Operating_System
introduced	O
in	O
2010	O
.	O
</s>
<s>
Cisco	O
determined	O
that	O
most	O
of	O
the	O
low	O
end	O
devices	O
had	O
too	O
little	O
capacity	O
to	O
include	O
the	O
features	O
needed	O
,	O
such	O
as	O
anti-virus	O
,	O
or	O
sandboxing	O
,	O
and	O
so	O
introduced	O
a	O
new	O
line	O
called	O
next	O
generation	O
firewall	B-Application
.	O
</s>
