M2M
Cellular
Gateway
Index
skipping
is
used
to
reserve
slots
for
new
function
insertion,
when
required.
127
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
setting
under
System
)
Then
check
Enable
box
to
enable
this
rule.
When
“
UDP
”
is
selected
It
means
the
option
“Protocol”
of
packet
filter
rule
is
UDP.
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
Por
t
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
setting
under
System
)
Then
check
Enable
box
to
enable
this
rule.
When
“
TCP
&
UDP
”
is
selected
It
means
the
option
“Protocol”
of
packet
filter
rule
is
TCP
and
UDP.
Public
Port
selected
a
predefined
port
from
Well
‐
known
Service
,
and
Private
Port
i
s
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
setting
under
System
)
Then
check
Enable
box
to
enable
this
rule.
When
“
GRE
”
is
selected
It
means
the
option
“Protocol”
of
packet
filter
rule
is
GRE.
Apply
Time
Schedule
to
this
rule,
otherwise
leave
it
as
Always
.
(
refer
to
Scheduling
setting
under
System
)