Configuring How To Assign Ip Addresses In A Global Address Pool - H3C S7500 Series Operation Manual

Operation Manual – DHCP
H3C S7500 Series Ethernet Switches
clients through these interfaces, it assigns IP addresses in the global address pool to
the DHCP clients.
Follow these steps to configure the global address pool mode on interface(s):
Enter system view
Configure the
specified
interface(s) or
all interfaces
to operate in
global
address pool
mode

2.2.4 Configuring How to Assign IP Addresses in a Global Address Pool

You can specify to bind an IP address in a global address pool statically to a DHCP
client or assign IP addresses in the pool dynamically to DHCP clients as needed. In
the global address pool, you can bind an IP address statically to a DHCP client and
assign other IP addresses in the pool dynamically to DHCP clients.
For dynamic IP address assigning, you need to specify the range of the IP addresses
to be dynamically assigned. But for static IP address binding, you can consider an IP
address statically bound to a DHCP client coming from a special DHCP address pool
that contains only one IP address.
I. Configuring to assign IP addresses by static binding
Some DHCP clients, such as WWW servers, need fixed IP addresses. This can be
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 searches for
the IP address corresponding to the MAC address of the DHCP client and assigns the
IP address to the DHCP client.
Currently, only one IP address in a global DHCP address pool can be statically bound
to a MAC address.
Follow these steps to configure to assign IP addresses by static binding:
To do...
Configure the
current
interface
Configure
multiple
interfaces in
system view
Chapter 2 DHCP Server Configuration
Use the command...
system-view
interface interface-type
interface-number
dhcp select global
quit
dhcp select global
{ interface interface-type
interface-number [ to
interface-type
interface-number ] | all }
2-4
Remarks
—
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