[Quick IP Filtering]
Overview
Configure settings to restrict the IP addresses or subnets that communicate with this system.
Prevent access from malicious third parties by accepting only communications from a specific range of IP addresses or subnets.
The figure below shows an example when [Sync. IP Address] is selected.
*: The subnet mask is fixed to 255.255.255.0
Tips
- The allowable range of the IP addresses or subnet varies depending on the selected filtering method. Select the appropriate method to suit the operating environment of this system.
Setting Procedure
1
Select [Filtering Method].
[Sync. IP Address] allows access of only the IP addresses in the specified range in IPv4 environment. The subnet mask is fixed to 255.255.255.0. Allows accesses of only the IP address set to this system and the IP addresses of which the high-order 64 bits are the same in IPv6 environment.
[Sync. Subnet Mask] allows access of only the IP address set to this system and the IP addresses included in the same sub network.
2
The valid range of IP addresses are displayed in [IPv4 Access Range] or [IPv6 Access Range].
in the upper-right of a page, it turns into 
and is registered as a bookmark.