D-Link DGS-1250 Series - DHCP Server Screening

DGS-1250 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide
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The fields that can be configured in IPv6 Neighbor Binding Settings are described below:
Parameter Description
MAC Address
Enter the MAC address used here.
VID
Enter the VLAN ID used here. This value must be between 1 and 4094.
IPv6 Address
Enter the IPv6 address used here.
From Port - To Port
Select the appropriate port range used for the configuration here.
Click the Apply button to accept the changes made.
The fields that can be configured in IPv6 Neighbor Binding Entry are described below:
Parameter Description
From Port - To Port
Select the appropriate port range used for the search here.
IPv6 Address
Enter the IPv6 address to find here.
MAC Address
Enter the MAC address to find here.
VID
Enter the VLAN ID to find here.
Click the Find button to locate a specific entry based on the information entered.
Click the Delete button to remove the specified entry.
Enter a page number and click the Go button to navigate to a specific page when multiple pages exist.
DHCP Server Screening
This function allows users to not only to restrict all DHCP server packets but also to receive any specified DHCP
server packet by any specified DHCP client. It is useful when one or more DHCP servers are present on the network
and both provide DHCP services to different distinct groups of clients.
When the DHCP Server Screening function is enabled on a port, all DHCP server packets received on this ports will
be redirected to the CPU for a software-based check. Legal DHCP server packets will be forwarded out and illegal
DHCP server packets will be dropped.
When DHCP Server Screening function is enabled, all DHCP Server packets will be filtered from a specific port.