D-Link DES-3528 - xStack Switch - Stackable, User Manual, Page: 178 / 322

xStack
®
DES-3528/DES-3552 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual
177
DHCP Snooping Entries
This table is used to view dynamic entries on specific ports. To view particular port settings, enter the port number and
click
Find
. To view all entries click
View All
, and to delete an entry, click
Clear
.
To view this window click,
Security > IP-MAC-Port Binding > DHCP Snooping Entries
Figure 6 - 7 DHCP Snooping Entries window
MAC Block List
This table is used to view unauthorized devices that have been blocked by IP-MAC binding restrictions. To find an
unauthorized device that has been blocked by the IP-MAC binding restrictions, enter the VID and MAC Address in the
appropriate fields and click
Find
. To delete an entry, click the delete button next to the entry’s port. To delete all the
entries in the
Blocked Address Browser
window, click
Clear All
.
To view this window click,
Security > IP-MAC-Port Binding > MAC Block List
Figure 6 - 8 MAC Blocked List window
Port Security
Port Security Settings
A given ports’ (or a range of ports') dynamic MAC address learning can be locked such that the current source MAC
addresses entered into the MAC address forwarding table can not be changed once the port lock is enabled. Setting
the
Admin State
pull-down menu to Enabled , and clicking
Apply
can lock the port.
Port Security is a security feature that prevents unauthorized computers (with source MAC addresses) unknown to the
Switch prior to locking the port (or ports) from connecting to the Switch's locked ports and gaining access to the
network.
To view the following window click,
Security > Port Security > Port Security Settings