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Modbus
Cellular
Gateway
Index
skipping
is
used
to
reserve
slots
for
new
function
insertion,
when
required.
251
Protocol
Click
the
PAP/CHAP/MS
‐
CHAP/MS
‐
CHAP
v2
‐
>The
protocol
will
be
enable
which
box
is
click.
MPPE
Encryption
The
box
is
unchecked
by
default
When
click
the
Enable
box
‐
>It
will
enable
MPPE
for
this
L2TP
tunnel.
Note_1:
If
Enable
box
is
be
click,
Authentication
Protocol
PAP/CHAP
will
be
not
available.
NAT
before
Tunneling
The
box
is
unchecked
by
default
When
click
the
Enable
box
‐
>It
will
enable
NAT
for
this
L2TP
tunnel.
LCP
Echo
Type
A
Must
filled
setting
Specify
the
LCP
Echo
Type
for
this
L2TP
tunnel.
Select
Auto
‐
>Auto
setting
the
Interval
and
Max.
Failure
Time.
Selected
User
‐
defined
‐
>Fill
in
the
Interval
and
Max.
Failure
Time
for
LCP.
Selected
Disable
‐
>Disable
LCP
Echo
and
it
will
be
not
availabe.
Service
Port
A
Must
filled
setting
Specify
the
Service
Port
for
this
L2TP
tunnel
to
use.
Tunnel
The
box
is
unchecked
by
default
When
click
Enable
It
will
enable
this
L2TP
tunnel
Save
N/A
Click
the
Save
button
to
save
the
configuration.
Undo
N/A
Click
the
Undo
button
to
recovery
the
configuration.
Back
N/A
Click
the
Back
button
to
return
the
last
page.