Operation Manual - DHCP 
Quidway S5600 Series Ethernet Switches-Release 1510  Chapter 2  
DHCP Server Configuration
 
Huawei Technologies Proprietary 
2-9 
Operation  Command  Description 
Set the IP address 
segment whose IP 
address are to be 
assigned 
dynamically 
network  ip-address [ mask 
mask ] 
Required 
By default, no IP address 
segment is set. That is, no IP 
address is available for being 
assigned 
Configure the 
lease time 
expired  {  day  day [ hour 
hour  [  minute  minute  ] ] | 
unlimited } 
Optional 
The default lease time is one 
day 
Return to system 
view 
quit 
— 
Specify the IP 
addresses that are 
not dynamically 
assigned 
dhcp server forbidden-ip 
low-ip-address 
[ high-ip-address ] 
Optional 
By default, all IP addresses in 
a DHCP address pool are 
available for being 
dynamically assigned 
 
  Note: 
z  In the same DHCP global address pool, the network command can be executed 
repeatedly. In this case, the new configuration overwrites the previous one. 
z  The dhcp server forbidden-ip command can be executed repeatedly. That is, you 
can repeatedly configure IP addresses that are not dynamically assigned to DHCP 
clients. 
z  If an IP address that is not to be automatically assigned has been configured as a 
statically-bound IP address, the DHCP server still assigns this IP address to the 
client whose MAC address has been bound.   
 
2.2.5  Configuring DNS Services for the DHCP Server 
If a host accesses the Internet through domain names, DNS is needed to translate the 
domain names into the corresponding IP addresses. To enable DHCP clients to 
access the Internet through domain names, a DHCP server is required to provide DNS 
server addresses while assigning IP addresses to DHCP clients. Currently, you can 
configure up to eight DNS server addresses for a DHCP address pool.