Misc. Network Settings
Accessible IP List
The NPort 6000 uses an IP address-based filtering method to control access to its serial ports.
The Accessible IP list allows you restrict network access to the NPort 6000. Access is controlled by IP address.
When the accessible IP list is enabled, a host’s IP address must be listed in order to have access to the NPort
6000. You may add a specific address or range of addresses by using a combination of IP address and netmask,
as follows:
To allow access to a specific IP address
Enter the IP address in the corresponding field; enter 255.255.255.255 for the netmask.
To allow access to hosts on a specific subnet
For both the IP address and netmask, use 0 for the last digit (e.g., 192.168.1.0 and 255.255.255.0).
To allow unrestricted access
Deselect the Enable the accessible IP list option.
Refer to the following table for more configuration examples.
Allowed hosts Entered IP address/Netmask
Any host Disable
192.168.1.120 192.168.1.120 / 255.255.255.255
192.168.0.1 to 192.168.255.254 192.168.0.0 / 255.255.0.0
192.168.1.1 to 192.168.1.126 192.168.1.0 / 255.255.255.128
192.168.1.129 to 192.168.1.254 192.168.1.128 / 255.255.255.128
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