From among the methods for restricting access to the system and Image Controller, there are methods for allowing only devices which are within the range set for the system and Image Controller. Set the range of allowed IP addresses so that any devices which are not in range are denied access. The range of allowed IP addresses can be quickly and easily checked, making it an extremely useful function.
Configure the settings as detailed below to restrict the range of IP addresses that can communicate with the system.
If using IPv4, only addresses which are within the permitted range of IP addresses are allowed. The subnet mask is fixed at 255.255.255.0. If using IPv6, only IP addresses configured to the system or image controller, and IP addresses with the same high-order 64 bits are allowed access.
<Example>
With System or Image Controller IP Address: 10.11.32.2
Range of IP Addresses with Access to System: 10.11.32.0 to 10.11.32.255
Use the subnet mask and IP address configured to the system or image controller to allow access only to those within the range of IP addresses belonging to the same sub network.
<Example>
With System or Image Controller IP Address: 10.11.32.2, and System or Image Controller Subset Mask: 255.255.248.0
Range of IP Addresses with Access to System: 10.11.32.0 to 10.11.39.255
Allow connections from all IP addresses without using the filtering function.
You can check which range is enabled.
You can check which range is enabled.