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Billion 800VGT Router
DNS
A
Domain
Name
System
(DNS)
contains
a
mapping
table
for
mapping
between
Domain
Names
and
IP
addresses.
On
the
Internet,
every
host
has
a
unique
and
user-friendly
name
(domain
name)
such
as
www.helloworld.com
as
well
as
an
IP
address.
An
IP
address
is
a
32-bit
number
in
the
form
of
xxx.xxx.xxx.xxx,
for
example
10.0.0.2.
You
can
think
of
an
IP
address
as
a
telephone
number
for
devices
on
the
Internet,
and
the
DNS
will
allow
you
to
find
the
telephone
number
for
any
particular
domain
name.
As
an
IP
Address
is
hard
to
remember,
the
DNS
converts
the
friendly
name
into
its
equivalent
IP
Address.
You
can
obtain
a
Domain
Name
System
(DNS)
IP
address
automatically
if
your
ISP
provides
it
when
you
logon.
To
use
this
automatically
supplied
DNS
check
the
Enable
box.
Usually
when
you
choose
PPPoE or
PPPoA
as
your
WAN
-
ISP
protocol,
the
ISP
will
provide
the
DNS
IP
address
automatically.
You
may leave
the
configuration
field
blank.
Alternatively,
your
ISP
may
provide
you
with
an
IP
address
of
their
DNS.
If
this
is
the
case,
you
must
enter
the
DNS
IP
address
manually.
If
you
choose
one
of
the
other
three
protocols
─
RFC1483
Routed/Bridged
or
IPoA,
please
check
with
your
ISP
as
it
may
provide
you
with
an
IP
address
for
their
DNS
server.
You
will
need
to
enter
the
DNS
IP
address
if
you
set
the
DNS
of
your
PC
to
the
LAN
IP
address
of
this
router.
49
Chapter
4:
Configuration