Modbus
Cellular
Gateway
Index
skipping
is
used
to
reserve
slots
for
new
function
insertion,
when
required.
226
Local
&
Remote
Configuration
Window
Item
Value
setting
Description
Local
Subnet
A
Must
fill
setting
Specify
the
Local
Subnet
IP
address
and
Subnet
Mask.
Local
Netmask
A
Must
fill
setting
Specify
the
Local
Subnet
Mask.
Remote
Subnet
A
Must
fill
setting
Specify
the
Remote
Subnet
IP
address
Remote
Netmask
A
Must
fill
setting
Specify
the
Remote
Subnet
Mask.
Remote
Gateway
1.
A
Must
fill
setting
2.
An
IPv4
address
or
FQDN
format
Specify
the
Remote
Gateway.
The
Remote
Gateway
Authentication
Configuration
Window
Item
Value
setting
Description
Key
Management
A
Must
fill
setting
Select
Key
Management
from
the
dropdown
box
for
this
IPSec
tunnel.
In
this
section
Manually
is
the
option
selected.
For
IKE+Pre
‐
shared
Key
and
IKE+X.509
option,
please
refer
to
the
table
in
previous
5
pages
where
key
management
is
described.
Local
ID
An
optional
setting
Specify
the
Local
ID
for
this
IPSec
tunnel
to
authenticate.
Select
the
Key
ID
for
Local
ID
and
enter
the
Key
ID
(English
alphabet
or
number).
Remote
ID
An
optional
setting
Specify
the
Remote
ID
for
this
IPSec
tunnel
to
authenticate.
Select
Key
ID
for
Remote
ID
and
enter
the
Key
ID
(English
alphabet
or
number).
Manual
Proposal
Window
Item
Value
setting
Description
Outbound
SPI
Hexadecimal
format
Specify
the
Outbound
SPI
for
this
IPSec
tunnel.
Inbound
SPI
Hexadecimal
format
Specify
the
Inbound
SPI
for
this
IPSec
tunnel.
Encryption
1.
A
Must
fill
setting
2.
Hexadecimal
format
Specify
the
Encryption
Method
and
Encryption
key
Available
encryption
methods
are
DES/3DES/AES128/AES192/AES256
The
key
length
for
DES
is
16,
3DES
is
48,
AES128
is
32,
AES192
is
48,
AES256
is
64.
Note:
When
AH
option
in
Encapsulation
is
selected,
encryption
will
not
be
available.
Authentication
1.
A
Must
fill
setting
2.
Hexadecimal
format
Specify
the
Authentication
Method
and
Authentication
key
Available
encryptions
are
None/MD5/SHA1/SHA2
‐
256
Enter
the
key
string
(String
length
by
the
method
which
choose)
The
key
length
for
MD5
is
32,
SHA1
is
40,
SHA2
‐
256
is
64.
Note:
When
AH
option
in
Encapsulation
Protocol
is
selected,
None
option
in
Authentication
will
not
be
available.
Save
N/A
Click
Save
to
save
the
settings
Undo
N/A
Click
Undo
button
to
cancel
the
settings
Back
N/A
Click
Back
button
to
return
to
the
previous
page.