3Com Switch 7750 Series
Command Reference Guide – DHCP Chapter 2 DHCP Relay Configuration Commands
2-6
interval: Specified refresh interval, in the range of 1 to 120 in seconds.
Description
Use the dhcp-security tracker command to configure the interval at which the DHCP
relay refreshes the addresses entries of dynamic users.
Use the undo dhcp-security tracker command to restore the default refresh interval.
By default, the refresh interval is auto, that is, the refresh interval is calculated
according to the number of entries.
Example
# Set the refresh interval to 100 seconds.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] dhcp-security tracker 100
2.1.8 dhcp-server Syntax
dhcp-server groupNo
undo dhcp-server
View
VLAN interface view
Parameter
groupNo: DHCP server group number. This argument ranges from 0 to 19.
Description
Use the dhcp-server command to map the current VLAN interface to a DHCP server
group.
Use the undo dhcp-server command to cancel the mapping.
Related command: dhcp-server ip, display dhcp-server, and display dhcp-server
interface vlan-interface.
Example
# Specify that VLAN interface 1 corresponds to DHCP server group 1.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] interface vlan-interface 1
[3Com-Vlan-interface1] dhcp-server 1