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24-Port Gigabit (Hi-Power) PoE+ Ethernet Smart Managed Pro Switch with 2 SFP Ports
Configure System Information User Manual123
7. Select whether to display physical interfaces, LAGs, or both by clicking one of the following
links above the table heading:
•1 (the
unit ID of the switch). Only physical interfaces are displayed. This is the default
setting.
•
LAG. Only LAGs are displayed.
• All. Both physical interfaces and LAGs are displayed.
8. Select
one or more interfaces by taking one of the following actions:
• To configure a single interface, select the check box associated with the port, or type
the port number in the
Go To Interface field and click the Go button.
• To configure multiple interfaces with the same settings, select the check box
associated with each interface.
• To configure all interfaces with the same settings, select the check box in the heading
row
.
9. From the T
rust Mode menu, select the desired trust mode:
• Disabled. The interface is considered to be untrusted and could potenti
ally be used
to launch a network attack. DHCP server messages are checked against the bindings
database. On untrusted ports, DHCP snooping enforces the following security rules:
- DHCP packets from a DHCP server (DHCPOFFER, DHCPACK, DHCPNAK,
DHCPRELEASEQUER
Y) are dropped.
- DHCPRELEASE and
DHCPDECLINE messages are dropped if the MAC address
is in the snooping database but the binding’s interface is other than the interface
where the message was received.
- DHCP packets are dropped when the source MAC address does not match the
client hardware address if MAC address validation is globally enabled.
• Enabled. The interface is considered to be trusted and forwards DHCP s
erver
messages without validation.
10. Click the Apply
button.
Your settings are saved.
Configure static DHCP bindings
You can view, add, and remove static bindings in the DHCP snooping bindings database and
view or clear the dynamic bindings in the bindings table.
To configure static DHCP bindings:
1. Connect your
computer to the same network as the switch.
You can use a WiFi or wired connection to connect your computer to the network, or
connect directly to a switch that is off-network using an Ether
net cable.
2. Launch a web browser.
3. In the address field of your web browser, enter the IP address of the switch.
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