Dhcp Configuration Example - Accton Technology ES4710BD User Manual

14.3.2.3 ip dhcp relay information policy drop
Command: ip dhcp relay information policy drop
no ip dhcp relay information policy drop
Function: When layer 3 switches are used as DHCP relays, this command sets the relay forwarding
policy to drop DHCP packets; the "no ip dhcp relay information policy drop"
command allows DHCP packets forwarding.
Default: DHCP relay forwards DHCP broadcast packet by default.
Command mode: Global Mode
Usage Guide: When the DHCP relay should not forward DHCP packets for some reason, this
command can be used to disable DHCP packet forwarding on DHCP relay.
Example: Disabling DHCP broadcast packet forwarding on the layer 3 switch.
Switch(Config)# ip dhcp relay information policy drop

14.4 DHCP Configuration Example

Scenario 1:
Too save configuration efforts of network administrators and users a company is using ES4710BD
as a DHCP server. The Admin VLAN IP address is 10.16.1.2/16. The local area network for the
company is divided into network A and B according to the office locations. The network
configurations for location A and B are shown below.
PoolA(network 10.16.1.0)
Device
Default gateway
DNS server
WINS server
WINS node type
Lease
In location A, a machine with MAC address 00-03-22-23-dc-ab is assigned with a fixed IP address
of 10.16.1.210 and named as "management". (The interfaces in the following configurations are
wrong; "no switch" command is not available.)
Switch(Config)#service dhcp
Switch(Config)#interface vlan 1
Switch(Config-Vlan-1)#ip address 10.16.1.2 255.255.0.0
Switch(Config-Vlan-1)#exit
Switch(Config)#ip dhcp pool A
Switch(dhcp-A-config)#network 10.16.1.0 24
Switch(dhcp-A-config)#lease 3
EES4710BD 10 Slots L2/L3/L4 Chassis Switch
IP address
10.16.1.200
10.16.1.201
10.16.1.202
10.16.1.209
H-node
3 days
PoolB(network 10.16.2.0)
Device
Default gateway
DNS server
WINS server
WINS node type
Lease
310
IP address
10.16.1.200
10.16.1.201
10.16.1.202
10.16.1.209
H-node
3 days