Chapter 2 Dhcp Relay Configuration Commands; Dhcp Relay Configuration Commands; Address-Check - Huawei Quidway S3900 series Command Manual

New Feature Manual - DHCP
Quidway S3900 Series Ethernet Switches-Release 1510

Chapter 2 DHCP Relay Configuration Commands

2.1 DHCP Relay Configuration Commands

2.1.1 address-check

Syntax
address-check enable
address-check disable
View
VLAN interface view
Parameter
None
Description
Use the address-check enable command to enable DHCP relay security on a VLAN
interface, so as to start the validity check on user addresses under the VLAN interface.
Use the address-check disable command to disable DHCP relay security, so as to
stop the validity check on user addresses under the VLAN interface.
By default, DHCP relay security is disabled on a VLAN interface.
Note that among S3900 series switches, only S3900-EI series switches support the
two commands.
Example
# Enter system view.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
# Enter VLAN interface 1 view.
[Quidway] interface vlan-interface 1
# Enable DHCP relay security on VLAN interface 1.
[Quidway-Vlan-interface1] address-check enable
Huawei Technologies Proprietary
2-1
Chapter 2 DHCP Relay Configuration C
ommands