3Com 7750 Series 2.1.3 address-check no-matched

3Com Switch 7750 Series
Command Reference Guide – DHCP Chapter 2 DHCP Relay Configuration Commands
2-2
View
VLAN interface view
Parameter
None
Description
Use the address-check dhcp-relay enable command to validate the dynamic entries
generated by the DHCP relay.
Use the address-check dhcp-relay disable command to invalidate the dynamic
entries generated by the DHCP relay. If you invalidate the dynamic IP-to-MAC
mapping entries generated by the DHCP relay agent, this means that you specify the
clients as freely-connected hosts.
By default, the dynamic entries generated by the DHCP relay are valid.
Only valid entries can pass DHCP security check.
This configuration will take effect only after the address checking function of the DHCP
relay on the VLAN interface is enabled.
Example
# Invalidate the dynamic entries generated by the DHCP relay.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] interface Vlan-interface 1
[3Com-Vlan-interface1] address-check enable
[3Com-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
Parameter
None