3Com Switch 8800 Family Configuration Guide

690 CHAPTER 57: DHCP CONFIGURATION
Configuring a lease time for multiple VLAN interfaces
Perform the following configuration in system view.
The default lease times for global address pools and VLAN interface address pools
are all one day.
Configuring DHCP Client
Domain Names
You can configure a domain name used by DHCP clients for each address pool on
a DHCP server.
Configuring a DHCP client domain name for a global DHCP address pool
Perform the following configuration in DHCP address pool view.
Configuring a DHCP client domain name for current VLAN interface
Perform the following configuration in VLAN interface view.
Configuring a DHCP client domain name for multiple VLAN interfaces
Perform the following configuration in system view.
Tabl e 629 Configure a lease time for multiple VLAN interfaces
Operation Command
Configure a lease time for DHCP address
pools of multiple VLAN interfaces
dhcp server expired { day day [ hour hour [
minute minute ] ] | unlimited } { interface
vlan-interface vlan-id [ to vlan-interface
vlan-id ] | all }
Restore the lease time of DHCP address pools
of multiple VLAN interfaces to the default
value
undo dhcp server expired { interface
vlan-interface vlan-id [ to vlan-interface
vlan-id ] | all }
Tabl e 630 Configure a DHCP client domain name for a global DHCP address pool
Operation Command
Configure a DHCP client domain name for a
global DHCP address pool
domain-name domain-name
Remove the DHCP client domain name
configured for a global DHCP address pool
undo domain-name
Tabl e 631 Configure a DHCP client domain name for current VLAN interface
Operation Command
Configure a DHCP client domain name for the
DHCP address pool of the current VLAN
interface
dhcp server domain-name domain-name
Remove the DHCP client domain name
configured for the DHCP address pool of the
current VLAN interface
undo dhcp server domain-name
Tabl e 632 Configure a DHCP client domain name for multiple VLAN interfaces
Operation Command
Configure a DHCP client domain name for
DHCP address pools of multiple VLAN
interfaces
dhcp server domain-name domain-name {
interface vlan-interface vlan-id [ to
vlan-interface vlan-id ] | all }
Remove the DHCP client domain name
configured for DHCP address pools of multiple
VLAN interfaces
undo dhcp server domain-name
domain-name { interface vlan-interface
vlan-id [ to vlan-interface vlan-id ] | all }