3Com Switch 7750 Series
Command Reference Guide – DHCP Chapter 1 DHCP Server Configuration Commands
1-24
Description
Use the domain-name command to configure a domain name for the DHCP clients of
a global DHCP address pool.
Use the undo domain-name command to remove the domain name.
By default, no domain name is configured for the DHCP clients of a global DHCP
address pool.
Related command: dhcp server ip-pool and dhcp server domain-name.
Example
# Configure the domain name mydomain.com for the DHCP clients of the global
DHCP address pool 0.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] dhcp server ip-pool 0
[3Com-dhcp-pool-0] domain-name mydomain.com
1.1.23 expired Syntax
expired { day day [ hour hour [ minute minute ] ] | unlimited }
undo expired
View
DHCP address pool view
Parameter
day day: Specifies the number of days. The day argument ranges from 0 to 365.
hour hour: Specifies the number of hours. The hour argument ranges from 0 to 23.
minute minute: Specifies the number of minutes. The minute argument ranges from 0
to 59.
unlimited: Specifies that the lease time is unlimited. (But actually, the system limits the
maximum lease time to about 25 years.)
Description
Use the expired command to configure the lease time of the IP addresses in a global
DHCP address pool.
Use the undo expired command to restore the default lease time.
The default lease time is one day.
Related command: dhcp server ip-pool and dhcp server expired.