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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:
²
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.
²
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.
Page 77 / 88
Billion 400G
Router
Chapter 4: Configuration
74
External Port:
The
Port
number
on
the
Remote/WAN
side
that
is
used
when
accessing
the
virtual
server.
Redirect Port:
The
Port
number
that
the
Local
server
on
the
LAN
network
will
be
listening
on.
Internal IP Address:
The
private
IP,
on
the
LAN
network,
of the
virtual
server
application.
Lists
all
the
existing
c
omputer
connections
on
the
network.
You
may
assign
a
Computer
by IP
address
or
MAC
address
from
this
list.
Select the
Add
button to apply your changes.
Example: List of some well-known and registered port numbers.
The
Internet
Assigned
Numbers
Authority
(IANA)
is
the
central
coordinator
for
the
assignment
of
unique
parameter
values
for
Internet
protocols.
Port
numbers
range
from
0
to
65535,
but
only
ports
numbers
0
to 1023
are
reserved
for
privileged
services
and
are
designated
as
“well-known
ports”
(Please
refer
to
Table 5).Registered
ports
are
numbered
from
1024
through
49151.
The
remaining
ports,
referred
to
as dynamic
or
private
ports,
are
numbered
from
49152
through
65535.
For further information, please see IANA’s website at:
Table 5: Well-known and registered Ports
Port Number
Protocol
Description
20
TCP
FTP Data
21
TCP
FTP Control
22
TCP & UDP
SSH Remote Login Protocol
23
TCP
Telnet
25
TCP
SMTP (Simple Mail Transfer Protocol)
53
TCP & UDP
DNS (Domain Name Server)
69
UDP
TFTP (Trivial File Transfer Protocol)
80
TCP
World Wide Web HTTP
110
TCP
POP3 (Post Office Protocol Version 3)
119
TCP
NEWS (Network News Transfer Protocol)
123
UDP
NTP (Network Time Protocol) / SNTP (Simple Network Time
Protocol)
161
TCP
SNMP
443
TCP & UDP
HTTPS
1503
TCP
T.120
1720
TCP
H.323
4000
TCP
ICQ
7070
UDP
RealAudio
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Billion 400G
Router
Chapter 4: Configuration
76
Configuration of Time Schedule
Edit a Time Slot
1.
Choose any Time Slot (ID 1 to ID 16) to edit, click
Edit
radio button
.
Note:
The
days
that
you
have
selected
will
show
as
capital
letters.
Lower
case
letters
show
the
day(s)
that
are
not
selected,
and
no
rule
will
apply
on
these
days.
2. T
he
setting
of
this
Time
Slot
will
be
shown
in
detail.
ID:
This is the index of the time slot.
Name:
A
user-defined
description
identifying
this
time
slot.
Day:
The
default
setting
is
for
Monday
till
Friday
to
be
enabled. You
should
modify
this
according
to your
requirements.
Start Time:
The default is set at 8:00 AM. You may specify
any
required
start
time
for
your
schedule.
End Time:
The default is set at 18:00 (6:00PM).
You
may
specify
any
required
end
time
for
your schedule.
Select the Edit radio button and click the
Edit/Delete
button to apply your changes.
Delete a Time Slot
Select the Delete radio button, and click the
Edit/Delete
button
to delete the existing Time profile, i.e.
Erase
the
selected
Days
and
return
to
the
default settings
of
Start
Time
/
End
Time.
Page 80 / 88
Billion 400G
Router
Chapter 4: Configuration
77
Advanced
Configuration options within the
Advanced
section are for users who wish to take advantage of the more advanced
features of the router. Users who do not understand the features should not attempt to reconfigure their router,
unless advised to do so by support staff.
Here are the items within the
Advanced
section:
Static Route, Dynamic DNS
,
Check Email, Device
Management, IGMP
and
VLAN Bridge.
Static Route
Go to Configuration/Advanced/Static Route.
Destination:
This is the destination subnet IP address.
Netmask:
Subnet
mask
of
the
destination
IP
addresses
given
above.
Gateway:
This
is
the
gateway
IP
address
to
which
packets
sent
to
the
network
defined
above
are
to
be
forwarded.
Interface:
Select
the
interface
through
which
packets
are
to
be
forwarded.
Cost:
This
is
the
same
meaning
as
Hop.
This
should
usually
be
left
at
1
unless
you
know
the
actual
path length.
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