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4 Configuration D-Link Smart Managed Switch User Manual
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Enter the IP Address, MAC Address, Ports and then click Add to create a checking/filtering rule. Click
Delete to remove an existing rule and Delete All to clear all the entries.
Security > DHCP Server Screening
DHCP Server Screening function allows user to restrict the illegal DHCP server by discarding the DHCP
service from distrusted ports. This page allows you to configure the DHCP Server Screening state for each
port and designed trusted DHCP server IP address. Select Ports and then click Apply to enable or disable
the function.
Figure 4.96 – Security > DHCP Server Screening
Trusted DHCP Server IP Settings: Select IPv4 or IPv6 and specify the IP address then click Add to create
Trusted DHCP Server. For default, the ports are all enabled of trusted DHCP Server.
Click Add to add a trusted DHCP server.
Security > SSL
Secure Sockets Layer (SSL) is a security feature that provides a secure communication path between a Web
Management host and the Switch Web UI by using authentication, digital signatures and encryption. These
security functions are implemented by Ciphersuite, a security string that determines the cryptographic
parameters, encryption algorithms and key sizes to be used for an authentication session and consists of
three levels: key exchange, encryption and has algorithm.
This page allows you to configure the SSL global state and the Ciphersuite settings. Select Enable or
Disable and then click Apply to change the SSL state or the Ciphersuite settings of the Switch. By default,
SSL is Disabled and all Ciphersuites are Enabled.
Figure 4.97 – Security > SSL Settings
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