3Com Switch 7750 Configuration Guide Guide

Interface Address Pool-based DHCP Server Configuration 567
Configuring to Assign
the IP Addresses of
Interface Address Pools
to DHCP Clients
If the DHCP server works in the interface address pool mode, it picks IP addresses
from the interface address pools and assigns them to the DHCP clients. If there is
no available IP address in the interface address pools, the DHCP server picks IP
addresses from its global address pool that contains the interface address pool
segment and assigns them to the DHCP clients.
Configuring to Assign IP
Addresses of DHCP
Address Pools to DHCP
Clients
You can assign IP addresses by static binding or assign IP addresses dynamically to
DHCP clients as needed.
Configuring to assign IP addresses by static binding
Some DHCP clients, such as WWW servers, need fixed IP addresses. This is
achieved by binding IP addresses to the MAC addresses of these DHCP clients.
When such a DHCP client applies for an IP address, the DHCP server finds the IP
address corresponding to the MAC address of the DHCP client, and then assigns
the IP address to the DHCP client.
n
Table 439 Enable DHCP
Operation Command Description
Enter system view system-view -
Enable DHCP dhcp enable
Required
By default, DHCP is enabled
Table 440 Configure to assign the IP addresses of interface address pools to DHCP clients
Operation Command Description
Enter system view system-view -
Configure to assign
the IP addresses of
interface 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
global address pool to
DHCP clients
dhcp select
interface
quit
Configure multiple
interfaces in system
view
dhcp select
interface { interface
interface-type
interface-number [ to
interface-type
interface-number ] |
all }
Table 441 Configure to assign IP addresses by static binding
Operation Command Description
Enter system view system-view -
Enter interface view
interface interface-type
interface-number
-
Configure static binding
dhcp server static-bind
ip-address ip-address
mac-address mac-address
Required
By default, static binding is
not configured