H3C S3600 Series User Manual

Operation Manual – DHCP
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 2
DHCP Server Configuration
2-17
Table 2-15 Configure to assign IP addresses dynamically
Operation Command Description
Enter system view
system-view
—
interface interface-type
interface-number
dhcp server expired { day
day [ hour hour [ minute
minute ] ] | unlimited }
Configure
for the
current
interface
quit
Configure
the lease
time
Configure
multiple
interfaces
in system
view
dhcp server expired { day
day [ hour hour [ minute
minute ] ] | unlimited }
{ interface interface-type
interface-number [ to
interface-type
interface-number ] | all }
Optional
The default lease time is
one day
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 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 Use the dhcp server forbidden-ip command to configure the IP addresses that are
not assigned dynamically in global address pools and interface address pools.
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.
2.3.5 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 interface address pool.

H3C S3600 Series Specifications

General

Brand	H3C
Model	S3600 Series
Category	Switch
Language	English