Dhcp Troubleshooting Help; Monitor And Debug Commands; Clear Ip Dhcp Binding; Clear Ip Dhcp Conflict - Accton Technology ES4710BD User Manual

client will be requesting the IP address in the same segment of the VLAN interface after VLAN
interface forwarding, and the VLAN interface IP address is 10.16.1.2/24, therefore the IP address
assigned to the client will belong to 10.16.1.0/24.
If the DHCP/BootP client wants to have an address in 10.16.2.0/24, the gateway forwarding
broadcast packets of the client must belong to 10.16.2.0/24. The connectivity between the client
gateway and the switch must be ensured for the client to get an IP address from the 10.16.2.0/24
address pool.
14.5

DHCP Troubleshooting Help

14.5.1 Monitor and Debug Commands

14.5.1.1

clear ip dhcp binding

Command: clear ip dhcp binding {<address> | all }
Function: Deletes the specified IP address-hardware address binding record or all IP
address-hardware address binding records.
Parameters: <address> is the IP address that has a binding record in decimal format. all refers to
all IP addresses that have a binding record.
Command mode: Admin Mode
Usage Guide: "show ip dhcp binding" command can be used to view binding information for IP
addresses and corresponding DHCP client hardware addresses. If the DHCP server is
informed that a DHCP client is not using the assigned IP address for some reason
before the lease period expires, the DHCP server would not remove the binding
information automatically. The system administrator can use this command to delete
that IP address-client hardware address binding manually, if "all" is specified, then
all auto binding records will be deleted, thus all addresses in the DHCP address pool
will be reallocated.
Example: Removing all IP-hardware address binding records.
Switch#clear ip dhcp binding all
Related command: show ip dhcp binding
14.5.1.2

clear ip dhcp conflict

Command: clear ip dhcp conflict {<address> | all }
Function: Deletes an address present in the address conflict log.
Parameters: <address> is the IP address that has a conflict record; all stands for all addresses that
have conflict records.
Command mode: Admin Mode
Usage Guide: "show ip dhcp conflict" command can be used to check which IP addresses are
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