Services
Modbus gateway
IX10 User Guide
482
l
A single IP address or host name.
l
A network designation in CIDR notation, for example, 192.168.1.0/24.
l
any
: No limit to IPv4 addresses that can access the web administration service.
d. Click
again to list additional IP addresses or networks.
n
To limit access to specified IPv6 addresses and networks:
a. Click
IPv6 Addresses
.
b. For
Add Address
, click
.
c. For
Address
, enter the IPv6 address or network that can access the device's web
administration service. Allowed values are:
l
A single IP address or host name.
l
A network designation in CIDR notation, for example, 2001:db8::/48.
l
any
: No limit to IPv6 addresses that can access the web administration service.
d. Click
again to list additional IP addresses or networks.
n
To limit access to hosts connected through a specified interface on the IX10 device:
a. Click
Interfaces
.
b. For
Add Interface
, click
.
c. For
Interface
, select the appropriate interface from the dropdown.
d. Click
again to allow access through additional interfaces.
n
To limit access based on firewall zones:
a. Click
Zones
.
b. For
Add Zone
, click
.
c. For
Zone
, select the appropriate firewall zone from the dropdown.
See
for information about firewall zones.
d. Click
again to allow access through additional firewall zones.
10. (Optional) Enable
Send broadcast messages
to configure the gateway to send broadcast
messages to this client.
11. For
Response timeout
, type the maximum time to wait for a response to a message.
Allowed values are between 1 millisecond and 700 milliseconds, and take the format
number
ms
.
For example, to set
Response timeout
to 100 milliseconds, enter
100ms
. The default is
700ms
.
12. Click to expand
Modbus address filter
.
This filter is used by the gateway to determine if a message should be forwarded to a
destination device. If the Modbus address in the message matches one or more of the filters,
the message is forwarded. If it does not match the filters, the message is not forwarded.
13. For
Address or address range
, type a Modbus address or range of addresses. Allowed values
are
1
through
255
or a hyphen-separated range.
For example, to have this client filter for incoming messages that contain the Modbus address
of 10, type
10
. To filter for all messages with addresses in the range of 20 to 30, type
20-30
.
To add additional address filters for this client, click
.
