3com 5500-SI Manual Do Utilizador

Interface Address Pool-based DHCP Server Configuration 133

interfaces eases configuration work load and makes you to configure in a more 
convenient way.

You need to enable DHCP before performing DHCP configurations. DHCP-related 
configurations are valid only when DHCP is enabled.

You can configure a DHCP server to assign the IP addresses of local interface-based 
address pools to DHCP clients when it receives DHCP packets from DHCP clients.

You can specify to bind IP addresses statically to DHCP clients or assign IP addresses 
dynamically to DHCP clients as needed. But the IP addresses of a DHCP address pool 
can only be assigned in one of these two ways at the same time.

As for dynamic IP address assigning, you need to specify the ranges of IP addresses to 
be assigned. But for static IP address binding, you can consider an IP address statically 

Table 119   Overview of interface address pool-based DHCP server configuration

Enable DHCP

Required

Enabling DHCP

Configure to assign the IP addresses of the 
local interface-based address pools to DHCP 
clients

Required

Configuring to Assign the IP 
addresses of Local 
Interface-based address pools to 
DHCP Clients

Configure to assign IP 
addresses of interface 
DHCP address pool to 
DHCP clients

Configure to bind IP 
address statically to 
DHCP clients

One among 
these two 
options is 
required.

Configuring to Assign IP 
Addresses of Interface-based 
Address Pools to DHCP Clients

Configure to assign 
IP addresses 
dynamically

Configure DNS service for DHCP clients

Optional

Configuring DNS Services for 
DHCP Clients

Configure NetBIOS service for DHCP clients

Optional

Configuring NetBIOS Services for 
DHCP Clients

Customize DHCP service

Optional

Customizing DHCP Service

Enter system view

-

Enable DHCP

Required
By default, DHCP is disabled.

Table 121   Configure to assign the IP addresses of local interface-based address pools to 
DHCP clients

Enter system view

-

Configure to assign 
the IP addresses of 
local interface-based 
address pools to DHCP 
clients

Configure the 
current interface

interface interface-type 
interface-number

Required
By default, a DHCP 
server assigns the IP 
addresses of the local 
global address pool to 
DHCP clients in 
response to DHCP 
packets received from 
DHCP clients.

Configure 
multiple 
interfaces

dhcp select interface { 
interface interface-type 
interface-number [ to 
interface-type 
interface-number ] | all }