User's Manual Network Device 5400
Accessible IP Settings 
NPort has an IP address based filtering method to control access to the NPort. 
Accessible IP Settings allows you to add or remove “Legal” remote host IP addresses to prevent 
unauthorized access. Access to NPorts is controlled by IP address. That is, if a host’s IP address is in 
the accessible IP table, then the host will be allowed access to the NPort. You can allow one of the 
following cases by setting the parameter. 
 Only one host of specific IP address can access the NPort 
Enter “IP address/255.255.255.255” (e.g., “192.168.1.1/255.255.255.255”). 
 Hosts on the specific subnet can access the NPort 
Enter “IP address/255.255.255.0” (e.g., “192.168.1.0/255.255.255.0”). 
 Any host can access the NPort 
Disable this function. Refer to the following table for more details about the configuration 
example. 
Allowable Hosts  Input format 
Any host  Disable 
192.168.1.120 192.168.1.120 / 255.255.255.255 
192.168.1.1 to 192.168.1.254  192.168.1.0 / 255.255.255.0 
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 
NPort 5400 Series User’s Manual 
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