D-Link DXS-3600 Series Reference Manual page 336

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
Usage Guideline
Use this command to clear all of DHCP statistic counters.
Example
This example shows how to reset all DHCP counters to zero.
Switch# clear ip dhcp server statistics
Switch#
21-6 class (DHCP relay & server)
This command is used to enter the DHCP Pool Configuration Mode and to associate a range of IP
addresses with the DHCP class. Use the no form of the command to remove the association.
class NAME
no class NAME
Parameters
NAME
Default
None.
Command Mode
DHCP Pool Configuration Mode.
Command Default Level
Level: 12
Usage Guideline
Use the address range command and the class command in a DHCP address pool to restrict the
allocation of IP address from subnet in the address pool. Thus, the network for allocating addresses is
partitioned based on the DHCP option value of the request.
If an address pool has classes defined, the allocation of addresses from this address pool will based on
the class if the IP DHCP use class setting is enabled.
In a DHCP relay pool, the user can further use the class command to associate a DHCP pool class and
then use relay targets to set a list of relay target addresses for DHCP packet forwarding. If the client
request matches a relay pool which is configured with classes, then the client must match a class
configured in the pool in order to be relayed. If no DHCP class is configured, then the request will only be
matched against the relay pool and will be relayed to the relay destination server specified for the
matched relay pool.
Example
This example shows how two DHCP classes Customer-A and Customer-B are created with option
matching patterns. They are associated with address ranges in the DHCP server address pool "srv-pool1".
Switch# configure terminal
Switch(config)# ip dhcp class Customer-A
Switch(config-dhcp-class)# option 82 hex 1234 *
Switch(config-dhcp-class)# exit
Switch(config)# ip dhcp class Customer-B
Specifies the DHCP class name. This name can be up to 32
characters long.
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