Huawei Quidway S5600 Series Operation Manual page 636

Operation Manual - DHCP
Quidway S5600 Series Ethernet Switches-Release 1510
Configure the
specified
interface(s) or
all interfaces
to operate in
global
address pool
mode
Note:
To prevent malicious attacks to unused sockets and enhance security, S5600 series
Ethernet switches provide the following functions:
When DHCP is enabled, sockets UDP 67 and UDP 68 used by DHCP are enabled.
When DHCP is disabled, sockets UDP 67 and UDP 68 are shut down at the same
time.
The preceding functions are implemented as follows:
After you create a DHCP address pool by using the dhcp server ip-pool command,
sockets UDP 67 and UDP 68 will be enabled.
After you delete the DHCP address pool by using the undo dhcp server ip-pool
command and disable all the DHCP functions, sockets UDP 67 and UDP 68 will be
disabled.
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.
Operation
Configure the
current
interface
Configure
multiple
interfaces in
system view
Huawei Technologies Proprietary
Chapter 2 DHCP Server Configuration
Command
interface interface-type
interface-number
dhcp select global
quit
dhcp select global
{ interface interface-type
interface-number [
interface-type
interface-number ] | all }
2-6
Description
Optional
By default, a DHCP
server assigns the
IP addresses of the
global address pool
to DHCP clients in
response to DHCP
to
packets received
from DHCP clients