3Com 4210, 5500G, 4200G manual Dhcp Server Interface Address Pool Configuration Guide

198CHAPTER 21: DHCP CONFIGURATION GUIDE

DHCP Server Interface

Address Pool

Configuration Guide

Network Diagram Figure 54 Network diagram for DHCP server interface address pool configuration

Files server Client	Client	WINS server
192.168.0.10/24		192.168.0.30/24
			Vlan-int1
			192.168.0.1/24

Networking and

Configuration

Requirements

Switch A

DHCP server

192.168.0.20/24

Client Client DNS server

■Configure the IP address of VLAN-interface 1 on the DHCP server (Switch A) as 192.168.0.1/24.

■The DHCP clients belong to VLAN 1 and dynamically obtain IP addresses through DHCP.

■The DHCP server assigns a fixed IP address of 192.168.0.10/24 from the interface address pool to the file server with MAC address 000D-88F7-0001, and assigns IP addresses on the network segment 192.168.0.0/24 to other clients with the lease duration of 10 days. The IP address of the DNS server is 192.168.0.20/24, and that of the WINS server is 192.168.0.30/24.

Applicable Products

Product series	Software version	Hardware version
Switch 5500	Release V03.02.04	All versions
Switch 5500G	Release V03.02.04	All versions

Configuration Procedure # Enable DHCP.

[SwitchA] dhcp enable

#Exclude the IP addresses of the DNS server, WINS server, and file server from dynamic assignment.

[SwitchA] dhcp server forbidden-ip 192.168.0.10

[SwitchA] dhcp server forbidden-ip 192.168.0.20

[SwitchA] dhcp server forbidden-ip 192.168.0.30

# Configure the IP address of VLAN-interface 1 as 192.168.0.1/24.

[SwitchA] interface Vlan-interface 1

[SwitchA-Vlan-interface1] ip address 192.168.0.1 24

# Configure VLAN-interface 1 to operate in DHCP interface address pool mode.