Reference Guide

Dynamic Host Configuration Protocol (DHCP) | 87
Releasing and Renewing DHCP-based IP Addresses
On an Aggregator configured as a DHCP client, you can release a dynamically-assigned IP address
without removing the DHCP client operation on the interface. You can later manually acquire a new IP
address from the DHCP server as follows:
Viewing DHCP Statistics and Lease Information
To display DHCP client information, enter the following show commands:
Figure 7-3. show ip dhcp client statistics
Task Command Syntax Command Mode
Release a dynamically-acquired IP address while retaining
the DHCP client configuration on the interface.
release dhcp interface type slot/port
EXEC Privilege
Acquire a new IP address with renewed lease time from a
DHCP server.
renew dhcp interface type slot/port
EXEC Privilege
Task Command Syntax Command Mode
Display statistics about DHCP client interfaces
(Figure 7-3).
show ip dhcp client statistics
interface type slot/port
EXEC Privilege
Clear DHCP client statistics on a specified or on all
interfaces.
clear ip dhcp client statistics {all |
interface type slot/port}
EXEC Privilege
Display lease information about the dynamic IP address
currently assigned to a DHCP client interface (Figure 7-4).
show ip dhcp lease [interface type
slot/port]
EXEC Privilege
FTOS# show ip dhcp client statistics interface tengigabitethernet 0/0
Interface Name Ma 0/0
Message Received
DHCPOFFER 0
DHCPACK 0
DHCPNAK 0
Message Sent
DHCPDISCOVER 13
DHCPREQUEST 0
DHCPDECLINE 0
DHCPRELEASE 0
DHCPREBIND 0
DHCPRENEW 0
DHCPINFORM 0