3Com Switch 7750 Configuration Guide Guide

Global Address Pool-Based DHCP Server Configuration 561
Enabling DHCP You need to enable DHCP before performing other DHCP-related configurations,
which takes effect only after DHCP is enabled.
Configuring Global
Address Pool Mode on
Interface(s)
You can configure the global address pool mode on the specified or all interfaces
of a DHCP server. After that, when the DHCP server receives DHCP packets from
DHCP clients through these interfaces, it assigns IP addresses in the global address
pool to the DHCP clients.
Configure the
interface(s) to operate
in global address pool
mode
Configure to bind IP
address statically to a
DHCP client
One among these two
options is required.
Only one mode can
be selected for the
same global address
pool.
“Configuring How to
Assign IP Addresses in
a Global Address
Pool”
Configure to assign IP
addresses dynamically
Configure DNS services for the DHCP server Optional
“Configuring DNS
Services for the DHCP
Server”
Configure NetBIOS services for the DHCP
server
Optional
“Configuring
NetBIOS Services for
the DHCP Server”
Customize DHCP service Optional
“Customizing DHCP
Service”
Configure the gateway IP address for DHCP
clients
Optional
“Configuring
Gateway Addresses
for DHCP Clients”
Table 429 Configure global address pool-based DHCP server
Configuration task Remarks Section
Table 430 Enable DHCP
Operation Command Description
Enter system view system-view -
Enable DHCP dhcp enable
Required
By default, DHCP is enabled
Table 431 Configure the global address pool mode on interface(s)
Operation Command Description
Enter system view system-view -
Configure the
specified interface(s)
or all interfaces to
operate in global
address pool mode
Configure the current
interface
interface
interface-type
interface-number Optional
By default, a DHCP
server assigns the IP
addresses of the
global address pool to
DHCP clients in
response to DHCP
packets received from
DHCP clients
dhcp select global
quit
Configure multiple
interfaces in system
view
dhcp select global {
interface
interface-type
interface-number [ to
interface-type
interface-number ] |
all }