<s>
IP	B-Protocol
aliasing	I-Protocol
is	O
associating	O
more	O
than	O
one	O
IP	B-Protocol
address	I-Protocol
to	O
a	O
network	B-Protocol
interface	I-Protocol
.	O
</s>
<s>
With	O
this	O
,	O
one	O
node	O
on	O
a	O
network	B-Architecture
can	O
have	O
multiple	O
connections	O
to	O
a	O
network	B-Architecture
,	O
each	O
serving	O
a	O
different	O
purpose	O
.	O
</s>
<s>
In	O
the	O
Linux	B-Application
kernel	O
,	O
it	O
was	O
first	O
implemented	O
by	O
Juan	O
José	O
Ciarlante	O
in	O
1995	O
.	O
</s>
<s>
On	O
Solaris	B-Application
this	O
was	O
called	O
logical	O
network	B-Protocol
interface	I-Protocol
and	O
was	O
first	O
available	O
in	O
Solaris	B-Application
2.5	I-Application
in	O
1995	O
.	O
</s>
<s>
It	O
has	O
also	O
been	O
possible	O
in	O
Microsoft	B-Device
Windows	I-Device
NT	I-Device
since	O
(	O
at	O
least	O
)	O
Windows	B-Device
NT	I-Device
3.51	I-Device
,	O
released	O
in	O
1995	O
.	O
</s>
<s>
IP	B-Protocol
aliasing	I-Protocol
can	O
be	O
used	O
to	O
provide	O
multiple	O
network	B-Architecture
addresses	O
on	O
a	O
single	O
physical	O
interface	O
.	O
</s>
<s>
One	O
reason	O
for	O
using	O
this	O
could	O
be	O
to	O
make	O
a	O
computer	O
look	O
as	O
though	O
it	O
is	O
multiple	O
computers	O
,	O
so	O
for	O
example	O
you	O
could	O
have	O
one	O
server	O
that	O
is	O
acting	O
as	O
both	O
a	O
gateway	O
(	O
router	O
)	O
and	O
a	O
DHCP	O
server	O
and	O
DNS	O
using	O
three	O
different	O
IP	B-Protocol
addresses	I-Protocol
,	O
perhaps	O
with	O
a	O
future	O
plan	O
to	O
use	O
a	O
hardware	O
router	O
and	O
to	O
move	O
the	O
functionality	O
to	O
separate	O
DNS	O
and	O
DHCP	O
servers	O
.	O
</s>
<s>
In	O
this	O
case	O
you	O
can	O
have	O
three	O
different	O
addresses	O
which	O
are	O
all	O
on	O
the	O
same	O
computer	O
without	O
having	O
to	O
install	O
many	O
physical	B-Protocol
network	I-Protocol
interfaces	I-Protocol
.	O
</s>
<s>
Another	O
reason	O
is	O
that	O
you	O
want	O
to	O
have	O
the	O
computer	O
on	O
two	O
different	O
logical	O
network	B-Architecture
subnets	O
whilst	O
using	O
a	O
single	O
physical	O
interface	O
.	O
</s>
