Huawei Quidway S5600 Series Operation Manual page 638

Operation Manual - DHCP
Quidway S5600 Series Ethernet Switches-Release 1510
Note:
The static-bind ip-address command and the static-bind mac-address
command or the static-bind client-identifier command must be coupled.
In the same global DHCP address pool, if you configure the static-bind
client-identifier command after configuring the static-bind mac-address
command, the new configuration overwrites the previous one.
In the same global DHCP address pool, if the static-bind ip-address command,
the static-bind mac-address command, or the static-bind client-identifier is
executed repeatedly, the new configuration overwrites the previous one.
The IP address to be statically bound cannot be an interface IP address of the
DHCP server; otherwise static binding does not take effect.
A client can permanently use the statically-bound IP address that it has obtained.
The IP address is not limited by the lease time of the IP addresses in the address
pool.
II. Configuring to assign IP addresses dynamically
IP addresses dynamically assigned to DHCP clients (including those that are
permanently leased and those that are temporarily leased) belong to addresses
segments that are previously specified. Currently, an address pool can contain only
one address segment, whose ranges are determined by the subnet mask.
To avoid IP address conflicts, the IP addresses to be dynamically assigned to DHCP
clients are those that are not occupied by specific network devices (such as gateways
and FTP servers).
The lease time can differ with address pools. But that of the IP addresses of the same
address pool are the same. Lease time is not inherited, that is to say, the lease time of
a child address pool is not affected by the configuration of the parent address pool.
Table 2-5 Configure to assign IP addresses dynamically
Operation
Enter system view
Create
address pool and
enter
address pool view
Command
system-view
a DHCP
dhcp
DHCP pool-name
Huawei Technologies Proprietary
Chapter 2 DHCP Server Configuration
—
Required
server ip-pool
By default, no DHCP address
pool is created
2-8
Description