Modbus
Cellular
Gateway
Index
skipping
is
used
to
reserve
slots
for
new
function
insertion,
when
required.
156
Please
note
that
two
identical
interfaces
are
not
accepted
by
the
router.
i.e.
VLAN
‐
1
to
VLAN
‐
1.
Source
IP
A
Must
filled
setting
This
field
is
to
specify
the
Source
IP
address
.
Select
Any
to
filter
packets
coming
from
any
IP
addresses.
Select
Specific
IP
Address
to
filter
packets
coming
from
an
IP
address.
Select
IP
Range
to
filter
packets
coming
from
a
specified
range
of
IP
address.
Select
IP
Address
‐
based
Group
to
filter
packets
coming
from
a
pre
‐
defined
group.
Note:
group
must
be
pre
‐
defined
before
this
option
become
available.
Refer
to
System
>
Grouping
>
Host
grouping.
You
may
also
access
to
create
a
group
by
the
Add
Rule
shortcut
button.
Destination
IP
A
Must
filled
setting
This
field
is
to
specify
the
Destination
IP
address
.
Select
Any
to
filter
packets
that
are
entering
to
any
IP
addresses.
Select
Specific
IP
Address
to
filter
packets
entering
to
an
IP
address
entered
in
this
field.
Select
IP
Range
to
filter
packets
entering
to
a
specified
range
of
IP
address
entered
in
this
field.
Select
IP
Address
‐
based
Group
to
filter
packets
entering
to
a
pre
‐
defined
group
selected.
Note:
group
must
be
pre
‐
defined
before
this
selection
become
available.
Refer
to
System
>
Grouping
>
Host
grouping.
You
may
also
access
to
create
a
group
by
the
Add
Rule
shortcut
button.
Setting
done
through
the
Add
Rule
button
will
also
appear
in
the
Host
grouping
setting
screen.
Source
MAC
A
Must
filled
setting
This
field
is
to
specify
the
Source
MAC
address
.
Select
Any
to
filter
packets
coming
from
any
MAC
addresses.
Select
Specific
MAC
Address
to
filter
packets
coming
from
a
MAC
address.
Select
MAC
Address
‐
based
Group
to
filter
packets
coming
from
a
pre
‐
defined
group
selected.
Note:
group
must
be
pre
‐
defined
before
this
selection
become
available.
Refer
to
System
>
Grouping
>
Host
grouping.
You
may
also
access
to
create
a
group
by
the
Add
Rule
shortcut
button.
Protocol
A
Must
filled
setting
For
Protocol
,
select
Any
to
filter
any
protocol
packets
Then
for
Source
Port
,
select
a
predefined
port
dropdown
box
when
Well
‐
known
Service
is
selected,
otherwise
select
User
‐
defined
Service
and
specify
a
port
range.
Then
for
Destination
Port
,
select
a
predefined
port
dropdown
box
when
Well
‐
known
Service
is
selected,
otherwise
select
User
‐
defined
Service
and
specify
a
port
range.
For
Protocol
,
select
ICMPv4
to
filter
ICMPv4
packets
For
Protocol
,
select
TCP
to
filter
TCP
packets
Then
for
Source
Port
,
select
a
predefined
port
dropdown
box
when
Well
‐
known
Service
is
selected,
otherwise
select
User
‐
defined
Service
and
specify
a
port
range.
Then
for
Destination
Port
,
select
a
predefined
port
dropdown
box
when
Well
‐
known
Service
is
selected,
otherwise
select
User
‐
defined
Service
and
specify
a
port
range.
For
Protocol
,
select
UDP
to
filter
UDP
packets
Then
for
Source
Port
,
select
a
predefined
port
dropdown
box
when
Well
‐
known
Service
is
selected,
otherwise
select
User
‐
defined
Service
and
specify
a
port
range.
Then
for
Destination
Port
,
select
a
predefined
port
dropdown
box
when
Well
‐
