<s>
The	O
Non-classified	O
Internet	B-Protocol
Protocol	I-Protocol
(	O
IP	O
)	O
Router	B-Protocol
Network	O
(	O
NIPRNet	B-General_Concept
)	O
is	O
an	O
IP	O
network	O
used	O
to	O
exchange	O
unclassified	O
information	O
,	O
including	O
information	O
subject	O
to	O
controls	O
on	O
distribution	O
,	O
among	O
the	O
private	O
network	O
's	O
users	O
.	O
</s>
<s>
The	O
NIPRNet	B-General_Concept
also	O
provides	O
its	O
users	O
access	O
to	O
the	O
Internet	O
.	O
</s>
<s>
The	O
others	O
include	O
SIPRNet	O
and	O
JWICS	B-General_Concept
.	O
</s>
<s>
NIPRNet	B-General_Concept
is	O
composed	O
of	O
Internet	B-Protocol
Protocol	I-Protocol
routers	B-Protocol
owned	O
by	O
the	O
United	O
States	O
Department	O
of	O
Defense	O
(	O
DOD	O
)	O
.	O
</s>
<s>
It	O
was	O
created	O
in	O
the	O
1980s	O
and	O
managed	O
by	O
the	O
Defense	O
Information	O
Systems	O
Agency	O
(	O
DISA	O
)	O
to	O
supersede	O
the	O
earlier	O
MILNET	B-General_Concept
.	O
</s>
<s>
In	O
the	O
year	O
leading	O
up	O
to	O
2010	O
NIPRNet	B-General_Concept
has	O
grown	O
faster	O
than	O
the	O
U.S.	O
Department	O
of	O
Defense	O
can	O
monitor	O
.	O
</s>
<s>
DoD	O
spent	O
$10	O
million	O
in	O
2010	O
to	O
map	O
out	O
the	O
current	O
state	O
of	O
the	O
NIPRNet	B-General_Concept
,	O
in	O
an	O
effort	O
to	O
analyze	O
its	O
expansion	O
,	O
and	O
identify	O
unauthorized	O
users	O
,	O
who	O
are	O
suspected	O
to	O
have	O
quietly	O
joined	O
the	O
network	O
.	O
</s>
<s>
The	O
NIPRNet	B-General_Concept
survey	O
,	O
which	O
uses	O
IPSonar	O
software	O
developed	O
by	O
Lumeta	O
Corporation	O
,	O
also	O
looked	O
for	O
weakness	O
in	O
security	O
caused	O
by	O
network	O
configuration	O
.	O
</s>
<s>
SIPRNet	O
and	O
NIPRNet	B-General_Concept
are	O
referred	O
to	O
colloquially	O
as	O
SIPPERnet	O
and	O
NIPPERnet	O
(	O
or	O
simply	O
sipper	O
and	O
nipper	O
)	O
,	O
respectively	O
.	O
</s>
