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Configuring Security
Configuring DHCP Snooping
STEP 3
STEP 1
STEP 2
STEP 3
STEP 1
STEP 2
STEP 3
STEP 4
Cisco 220 Series Smart Plus Switches Administration Guide Release 1.0.0.x
•
Timeout—Enter the value in seconds when to stop the database transfer
process after the DHCP Snooping binding database changes. The default is
300 seconds. The range is from 0 to 86400. Use 0 to define an infinite
duration.
Click Apply. The DHCP Snooping properties are defined, and the Running
Configuration is updated.
Configuring DHCP Snooping on VLANs
Use the VLAN Settings page to enable DHCP Snooping on VLANs. To enable
DHCP Snooping on a VLAN, ensure that DHCP Snooping is globally enabled on the
switch.
To define DHCP Snooping on VLANs:
Click Security > DHCP Snooping > VLAN Settings.
Select the VLANs from the Available VLANs column and add them to the Enabled
VLANs column.
Click Apply. DHCP Snooping is enabled on the selected VLANs, the Running
Configuration is updated.
Configuring DHCP Snooping Trusted Interfaces
Use the Interface Settings page to define the DHCP Snooping trusted interfaces.
The switch transfers all DHCP requests to trusted interfaces.
To define DHCP Snooping trusted interfaces:
Click Security > DHCP Snooping > Interface Settings.
Select the interface type (Port or LAG), and click Go.
Select an interface and click Edit.
Enter the following information:
•
Interface—Select a port or a LAG.
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