Enabling/Disabling Unauthorized Dhcp Server Detection - H3C S9500 Series Operation Manual

Operation Manual – DHCP
H3C S9500 Series Routing Switches
Restore the default
By default, DHCP packets are processed in global method. That is, DHCP packets are
forwarded to the local DHCP server and IP addresses in global address pools are
assigned.

1.2.3 Enabling/Disabling Unauthorized DHCP Server Detection

If an unauthorized DHCP server exists in a network, it may assign incorrect IP
addresses to DHCP clients, and thus the users cannot access networks.
With unauthorized DHCP server detection enabled, the switch can record information
(such as the IP addresses) about the DHCP servers. This helps the administrator to
detect unauthorized DHCP servers in time and take proper measures.
Perform the following configuration in system view to enable/disable unauthorized
DHCP server detection:
Enable unauthorized DHCP server detection
Disable unauthorized DHCP server detection
By default, unauthorized DHCP server detection is disabled.
To do...
To do...
1-6
Chapter 1 DHCP Overview
Use the command...
undo dhcp select { interface
vlan-interface vlan-id [ to
vlan-interface vlan-id ] | all }
Use the command...
dhcp server detect
undo dhcp server detect