User's Manual Part 2

NPort W2004 User’s Manual Web Console Configuration
5-23
! Only one host with a specific IP Address can access the NPort W2004
Enter the specific IP address (e.g., 192.168.1.1), and enter 255.255.255.255 for Netmask.
! Hosts on the specific subnet can access the NPort W2004
Enter an IP address (e.g., 192.168.1.0), and enter the Netmask (e.g., 255.255.255.0). Note
that this type of setting will allow access to all network hosts on a particular subnet.
! Any host can access the NE-4000T
Disable this function by un-checking the “Enable the accessible IP list” checkbox. Refer to
the following table for more configration examples.
The following “Allowable Hosts” table gives five configuration examples.
Allowable Hosts IP Address Netmask
Any host blank blank
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
TCP Alive Check Time
TCP alive check time
Setting Factory Default Necessity
0 to 99 min 7 min Optional
0 min: TCP connection is not closed due to an idle TCP connection.
1 to 99 min: NPort W2004 automatically closes the TCP connection if there is no TCP activity for
the given time. After the connection is closed, NPort W2004 starts listening for another host’s
TCP connection.