Operation Manual - Network Protocol
Quidway S3500 Series Ethernet Switches Chapter 5 DHCP Configuration
Huawei Technologies Proprietary
5-6
Operation Command
Send DHCP messages to the local DHCP
server where addresses are to be allocated
from the appropriate VLAN interface
address pool
dhcp select interface { interface
vlan-interface vlan_id [ to
vlan-interface vlan_id ] | all }
Relay DHCP messages to an external
DHCP server for address allocation
dhcp select relay { interface
vlan-interface vlan_id [ to
vlan-interface vlan_id ] | all }
Restore the DHCP message handling
method to the default
undo dhcp select { interface
vlan-interface vlan_id [ to
vlan-interface vlan_id ] | all }
DHCP handling method defaults to global, meaning DHCP messages are sent to the
local DHCP server where addresses are to be allocated from a global address pool.
5.2.3 Enable/Disable Pseudo-DHCP Server Detection
On a network, pseudo-DHCP server refers to an unauthorized DHCP server. Such a
server can communicate with a client requesting for IP address and allocate an
incorrect IP address to the client, thus preventing it from accessing the network.
With the function of pseudo-DHCP server detection enabled, the switch can record
DHCP server information such as IP address, thus allowing administrators discover
and deal with pseudo-DHCP servers.
Perform the following configuration in system view.
Table 5-4 Enable/Disable pseudo-DHCP server detection
Operation Command
Enable pseudo-DHCP server detection
dhcp server detect
Disable pseudo-DHCP server detection
undo dhcp server detect
By default, pseudo-DHCP server detection is disabled.
5.3 DHCP Server Configuration
DHCP server configuration includes:
z Create DHCP global address pool
z Configure address allocation method for a DHCP address pool
z Configure IP addresses forbidden in automatic allocation
z Configure IP address lease duration for a DHCP address pool
z Configure domain name for DHCP clients
z Specify DNS server addresses for DHCP clients
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