D-Link DGS-1210-08P - Security > Port Security

Configuration D-Link Web Smart Switch User Manual
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Figure 4.78 – Security > Trusted Host
Trusted Host: Specify the Trusted Host to be enabled or disabled. The default is disabled.
To define a management station IP setting, click the Add button and type in the IPv4 address and Subnet
mask or IPv6 address and Prefix value. Click the Apply button to save your settings. You may permit only
single or a range of IPv4 addresses by different IPv4 mask setting, the format can be either
192.168.1.1/255.255.255.0 or 192.168.0.1/24. Please see the example below for permitting the IPv4 range.
IP Address Subnet Mask Permitted IP
192.168.0.1 255.255.255.0 192.168.0.1~192.168.0.255
172.17.5.215 255.0.0.0 172.0.0.1~172.255.255.255
Click Delete to remove the IP address.
Security > Port Security
Port Security is a security feature that prevents unauthorized computers (with source MAC addresses)
unknown to the Switch prior to stopping auto-learning processing from gaining access to the network.
A given ports’ (or a range of ports') dynamic MAC address learning can be stopped such that the current
source MAC addresses entered into the MAC address forwarding table cannot be changed once the port
lock is enabled.
Figure 4.79 – Security > Port Security