H3C S7500 Series Ethernet Switches Command Manual

Table Of Contents
Command Manual – DHCP
H3C S7500 Series Ethernet Switches Chapter 2 DHCP Relay Agent Configuration Commands
2-2
View
VLAN interface view
Parameters
None
Description
Use the address-check dhcp-relay enable command to validate the dynamic entries
generated by the DHCP relay agent.
Use the address-check dhcp-relay disable command to invalidate the dynamic
entries generated by the DHCP relay agent.
By default, the dynamic entries generated by the DHCP relay agent are valid.
This configuration will take effect only after the address checking function of the DHCP
relay agent on the VLAN interface is enabled.
Examples
# Invalidate the dynamic entries generated by the DHCP relay agent.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] interface Vlan-interface 1
[H3C-Vlan-interface1] address-check enable
[H3C-Vlan-interface1] address-check dhcp-relay disable
2.1.3 address-check no-matched
Syntax
address-check no-matched enable
address-check no-matched disable
View
VLAN interface view
Parameters
None
Description
Use the address-check no-matched enable command to forbid freely-connected
clients to pass DHCP security check.
Use the address-check no-matched disable command to allow freely-connected
clients to pass DHCP security check.