Manage Device Security 
567
 M4300 Series and M4300-96X Fully Managed Switches User Manual
4.  Click the Login button. 
The System Information page displays.
5.  Select Security > Control > IPv6 Source Guard > Interface Configuration.
6.  Use one of the following methods to select an interface:
• In the Go To Interface field, enter the interface in the unit/slot/port format and click on 
the 
Go button.
• Next to the Interface column, select the check box for the port that you want to 
configure, select multiple check boxes to apply the same setting to all selected 
interfaces, or select the check box in the table heading to apply the same settings to 
all interfaces.
7.  Use the IPv6SG Mode menu to enable or disable validation of sender IPv6 address on this 
interface.
If IPv6SG is enabled, packets are not forwarded if the sender IPv6 address is not in the 
DHCP snooping binding database. The factory default is Disable.
8.  Use the IPv6SG Port Security
 menu to enable or disable the IPv6SG port security on the 
selected interface. 
If IPv6SG port security is enabled, then the packets are not forwarded if the sender MAC 
address is not in FDB table and it is not in the DHCP snooping binding database. T
o 
enforce filtering based on MAC address other required configurations are as follows:
• Enable port-security globally.
• Enable port-security on the interface level.
IPv6SG port security cannot be enabled if IPv6SG is disabled. 
The factory default is 
Disable. 
Also, you are not allowed to turn of
f IPv6SG port security while IPv6SG is 
enabled.
9.  Click the Apply button.
Your settings are saved.