Reference Guide

Command
History
Version Description
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.2.1.0 Introduced on the C-Series and S-Series.
Example
Dell# debug ip dhcp client events
Dell(conf-if-fo-2/0)#do show debugging
Dhcp Client :
DhcpClient Event debugging is on for fortyGigE 2/0
Dell(conf-if-fo-2/0)#ip address dhcp
Dell(conf-if-fo-2/0)#no ip address dhcp
Dell(conf-if-fo-2/0)#do show logging
Syslog logging: enabled
Console logging: level debugging
Monitor logging: level debugging
Buffer logging: level debugging, 9 Messages Logged, Size (40960
bytes)
Trap logging: level informational
Logging to 10.10.10.4
Logging to 10.1.2.4
Logging to 172.31.1.4
Logging to 133.33.33.4
Logging to 172.16.1.162
Last logging buffer cleared: Jan 7 01:38:04
Jan 7 01:38:42: %SYSTEM:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT:
Interface Fo 2/0 :DHCP DISABLED CMD sent to FTOS in state START
Jan 7 01:38:41: %SYSTEM:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT:
Interface Fo 2/0 :Transitioned to state START
Jan 7 01:38:41: %SYSTEM:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT:
Interface Fo 2/0 :DHCP DISABLE CMD Received in state BOUND
Jan 7 01:38:07: %SYSTEM:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT:
Interface Fo 2/0 :DHCP ENABLE CMD Received in state START
Message Sent
BOOTREPLY 0
DHCPOFFER 10
DHCPACK 16
DHCPNAK 0
debug ip dhcp client packets
Activate the debugging and display of log messages for DHCP packets sent and received on DHCP client interfaces.
Z9500
Syntax
debug ip dhcp client packets [interface type slot/port]
Parameters
interface
typeslot/port
Enter the keyword interface with the interface type and slot/port information
to display DHCP log messages for a specified interface. The valid interface types
are:
● For a 10-Gigabit Ethernet interface, enter the keyword
tengigabitethernet.
● For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE.
Dynamic Host Configuration Protocol (DHCP) 521