D-Link KVM-410 - Single Port KVM Switch User Manual page 22

Section  - Configuration
3. Specify the first IP Address to be filtered, then Click OK. Each IP Filter can consist of a single address, or a
range of addresses. A second dialogue box similar to the one below will appear:
4. To filter a single IP Address, enter the same IP Address as the start IP Address. To filter a range of addresses,
enter the last IP Address of the range. Click OK.
5. Repeat these steps for any additional IP Addresses or ranges of addresses you want to filter.
To delete a filter, select the filter and Click Remove.
To modify an existing filter, select it and Click Edit. The Edit dialog box is similar to the Add dialog box. When prompted,
simply delete the old address and replace it with the new one.
D-Link KVM-410 User Manual