Modbus
Cellular
Gateway
Index
skipping
is
used
to
reserve
slots
for
new
function
insertion,
when
required.
109
Create/Edit
Virtual
Server
The
router
allows
you
to
custom
your
Virtual
Server
rules.
The
router
supports
up
to
a
maximum
of
20
rule
‐
based
Virtual
Server
sets.
When
Add
button
is
applied
Virtual
Server
Rule
Configuration
screen
will
appear.
Virtual
Server
Rule
Configuration
Item
Value setting
Description
WAN
Interface
1.
A
Must
filled
setting
2.
Default
is
ALL
.
Define
the
selected
interface
to
be
the
packet
‐
entering
interface
of
the
router.
If
the
packets
to
be
filtered
are
coming
from
WAN
‐
x
then
select
WAN
‐
x
for
this
field.
Select
ALL
for
packets
coming
into
the
router
from
any
interfaces.
It
can
be
selected
WAN
‐
x
box
when
WAN
‐
x
enabled.
Server
IP
A
Must
filled
setting
This
field
is
to
specify
the
IP
address
of
the
interface
selected
in
the
WAN
Interface
setting
above.
Protocol
A
Must
filled
setting
When
“
ICMPv4”
is
selected
It
means
the
option
“Protocol”
of
packet
filter
rule
is
ICMPv4.
Apply
Time
Schedule
to
this
rule,
otherwise
leave
it
as
Always
.
(
refer
to
Scheduling
setting
under
System
)
Then
check
Enable
box
to
enable
this
rule.
When
“
TCP
”
is
selected
It
means
the
option
“Protocol”
of
packet
filter
rule
is
TCP.
Public
Port
selected
a
predefined
port
from
Well
‐
known
Service
,
and
Private
Port
is
the
same
with
Public
Port
number.
Public
Port
is
selected
Single
Port
and
specify
a
port
number,
and
Private
Port
can
be
set
a
Single
Port
number.
Public
Port
is
selected
Port
Range
and
specify
a
port
range,
and
Private
Port
can
be
selected
Single
Port
or
Port
Range
.
Apply
Time
Schedule
to
this
rule,
otherwise
leave
it
as
Always
.
(
refer
to
Scheduling
