dhcp snooping disable

Function

The dhcp snooping disable command disables DHCP snooping on an interface.

The undo dhcp snooping disable command cancels the configuration.

By default, if the dhcp snooping enable command is used on an interface or in a VLAN that an interface belongs to, DHCP snooping is enabled on this interface.

Format

dhcp snooping disable

undo dhcp snooping disable

Parameters

None

Views

Ethernet interface view, GE interface view, XGE interface view, 25GE interface view, MultiGE interface view, 40GE interface view, 100GE interface view, Eth-Trunk interface view, port group view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

If you run the dhcp snooping enable command to enable DHCP snooping in a VLAN, DHCP snooping is enabled on all the interfaces in the VLAN. If you do not run the dhcp snooping enable command to enable DHCP snooping on an interface, you cannot run the undo dhcp snooping enable command to disable DHCP snooping on the interface. To address this problem, run the dhcp snooping disable command to disable DHCP snooping on the interface. Users can properly go online from this interface, but no dynamic binding entry is generated.

Precautions

The dhcp snooping disable command does not only disable DHCP snooping on an interface, but also clears the DHCP snooping configuration and the dynamic binding table. The undo dhcp snooping enable command, however, only disables DHCP snooping on the interface and does not clear the configuration or the dynamic binding table.
The undo dhcp snooping disable command enables DHCP snooping on an interface. To enable DHCP snooping, run the dhcp snooping enable command.

Example

# Disable DHCP snooping on GE0/0/1 in VLAN 10.

<HUAWEI> system-view
[HUAWEI] dhcp enable
[HUAWEI] dhcp snooping enable
[HUAWEI] vlan 10
[HUAWEI-vlan10] dhcp snooping enable
[HUAWEI-vlan10] quit
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] dhcp snooping disable