3 dhcp configuration examples, Dhcp, Onfiguration – PLANET WGSW-50040 User Manual

Page 142: Xamples

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18-4

host <address> [<mask> |

<prefix-length> ]

no host

Specify/delete the IP address to be

assigned to the specified client when

binding address manually.

client-identifier <unique-identifier>

no client-identifier

Specify/delete the unique ID of the user

when binding address manually.

3. Enable logging for address conflicts

Command

Explanation

Global Mode

ip dhcp conflict logging

no ip dhcp conflict logging

Enable/disable logging for DHCP address to

detect address conflicts.

Admin Mode

clear ip dhcp conflict <address | all >

Delete a single address conflict record or all

conflict records.

18.3 DHCP Configuration Examples

Scenario 1:

Too save configuration efforts of network administrators and users, a company is using switch 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)

PoolB(network 10.16.2.0)

Device

IP address

Device

IP address

Default gateway

10.16.1.200

10.16.1.201

Default gateway

10.16.1.200

10.16.1.201

DNS server

10.16.1.202

DNS server

10.16.1.202

WINS server

10.16.1.209

WWW server

10.16.1.209

WINS node type

H-node

Lease

3 days

Lease

1day

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”.

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

Switch(dhcp-A-config)#default-route 10.16.1.200 10.16.1.201

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