Titan Electronics NCOM SERIAL 4XX Series, User Manual

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6.5 Accessible IP Settings
The NCOM-413’s firmware provides accessible IP settings. It uses an IP address based
filtering method to control accessible IP addresses.
Accessible IP settings allows you to pass or block remote host IP addresses to prevent
unauthorized access. Access to NCOM-413 is controlled by IP address. If a host’s IP
address is in the accessible IP table, then the host will be allowed to access the device.
You can allow one of the following rules by setting the accessible IP table parameter.
1.
Only one host with a specific IP address can access NCOM-413.
Check the “Enable” checkbox then enter IP address and “255.255.255.255” for
Netmask.
In this example, only the host with an IP address of 192.168.1.122 can access the
device.
2.
Hosts on a specific subnet can access NCOM-413.
Check the “Enable” checkbox then enter IP address and “255.255.255.0” for Netmask.
In this example, only hosts with an IP address from 192.168.1.1 to 192.168.1.254 can
access the device.
In this example, only hosts with an IP address from 192.168.0.1 to 192.168.255.254
can access the device.
3.
Any host can access NCOM-413.
Disable this function by unchecking “Enable”.