Configuring Dns Services For The Dhcp Server - H3C S7500 Series Operation Manual

Operation Manual – DHCP
H3C S7500 Series Ethernet Switches
Enter system view
Create a DHCP address
pool and enter DHCP
address pool view
Set the IP address
segment whose IP
addresses are to be
assigned dynamically
Configure the lease time
Return to system view
Specify the IP addresses
that are not dynamically
assigned
Note:
In the same DHCP global address pool, the network command can be executed
repeatedly. In this case, the new configuration overwrites the previous one.
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.

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.
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 to the DHCP clients as well
while the former assigns IP addresses to the DHCP clients.
Follow these steps to configure DNS services for the DHCP server:
To do...
system-view
dhcp server ip-pool
pool-name
network ip-address
[ mask mask ]
expired { day day [ hour
hour [ minute minute ] ] |
unlimited }
quit
dhcp server
forbidden-ip
low-ip-address
[ high-ip-address ]
Chapter 2 DHCP Server Configuration
Use the command...
2-6
Remarks
—
Required
By default, no DHCP
address pool is created
Required
By default, no IP address
segment is set. That is, no
IP address is available for
being assigned
Optional
The default lease time is
one day
—
Optional
By default, all IP
addresses in a DHCP
address pool are available
for being dynamically
assigned