Operation Manual – DHCP
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 2
DHCP Server Configuration
2-9
Operation Command Description
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 configure multiple 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 (domain name system) 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.
On a DHCP server, you can configure domain names to be used by DHCP clients for
address pools. After you do this, the DHCP server provides the domain names together
with the assigned IP addresses to the DHCP clients.
Table 2-6 Configure DNS services for the DHCP server
Operation Command Description
Enter system view
system-view
—
Create a DHCP
address pool and
enter DHCP
address pool view
dhcp server ip-pool
pool-name
Required
By default, no global DHCP
address pool is created.