Configure DHCP Snooping on VLANs
Use the following procedure to configure DHCP Snooping on a specific VLAN. If DHCP Snooping is globally disabled, the switch forwards DHCP reply packets (received on trusted or untrusted ports) to all ports.
If you enable DHCP Snooping globally, the agent determines whether to forward DHCP reply packets based on the DHCP Snooping mode of the VLAN and trusted state of the port.
Note
You cannot enable DHCP Snooping on Private VLANs (E-Tree) and SPBM B-VLANs.
Before you begin
You must enable DHCP Snooping globally.
Procedure
- In the navigation pane, expand .
- Select DHCP Snooping.
- Select the DHCP Snooping-VLAN tab.
- In the row for the VLAN, double-click DhcpSnoopingEnabled, and select true.
- Select Apply.
DHCP Snooping-VLAN Field Descriptions
Use the data in the following table to use the DHCP Snooping-VLAN tab.
Name |
Description |
---|---|
VlanId |
Specifies the VLAN ID. |
DhcpSnoopingEnabled |
Specifies if DHCP Snooping is enabled or disabled for the particular VLAN. By default, DHCP Snooping is disabled. |
Origin |
Specifies the origin of DHCP Snooping configuration on the VLAN. The supported values are:
|