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Billion 400G
Router
Chapter 4: Configuration
73
Edit One-to-One NAT (Network Address Translation)
One-to-One
NAT
maps
a
specific
private/local
(LAN)
IP
address
to
a
particular
global/public
(WAN)
IP address.
If
you
have
multiple
public/WAN
IP
addresses
provided
by
your
ISP,
you
are
will
be
able
to
use
the One-to-One
NAT
function
to
utilize
these
IP
addresses.
Go to Configuration
Virtual Server
Edit One-to-one NAT
NAT Type:
Select
the
desired
NAT
type.
By
default,
the
One-to-One
NAT
function
is
disabled.
Global IP Address:
Subnet:
The
subnet
of
the
public/WAN
IP
addresses
given
by
your
ISP. If
your
ISP
has provided
this
information,
you
may
insert
it
here. Otherwise,
use
the
IP
Range
method
to
define your
addresses.
IP Range:
The
IP
address
range
of
your
public/WAN
IP
addresses.
For
example,
IP:
10.0.0.5,
end
IP:
10.0.0.14
Select the Apply button to apply your changes.
Check to create a new One-to-One NAT rule:
Application: Users-defined description to identify this entry or click drop-down menu to select existing
predefined rules.
: 20 predefined rules are available. Application, Protocol and External/Redirect Ports will be filled after the
selection.
Protocol:
This
is
the
protocol
to
be
supported
by
the
virtual
server.
In
addition
to
specifying
the
port number
to
be
used,
you
will
also
need
to
specify
the
protocol
used.
The
protocol
used
is
determined
by the
particular
application.
Most
applications
will
use
TCP
or
UDP.
Time Schedule:
The
user-defined
time
period
during
which
your
v
irtual
server
is
enabled.
You
may
specify
a
time
schedule
or
you
can
select
Always
on
for
this
Virtual
Server
Entry. For
setup
and
details, refer
to
the
Time
Schedule
section.
Global IP:
Define
a
public/
WAN
IP
address
for
this
Application
to
use.