Administrator Guide

To display log message on DHCP client interfaces for IP address acquisition, IP address release, IP address and lease time
renewal, and release an IP address, use the [no] debug ip dhcp client events [interface type slot/port]
command.
Dell# show ip dhcp client statistics interface tengigabitethernet 0/1
Message Received
DHCPOFFER 0
DHCPACK 0
DHCPNAK 0
Message Sent
DHCPDISCOVER 0
DHCPREQUEST 0
DHCPDECLINE 0
DHCPRELEASE 0
DHCPREBIND 0
DHCPRENEW 0
Dell# show ip dhcp lease interface tengigabitethernet 4/37
Interface Lease-IP Def-Router ServerId State Lease Obtnd At Lease Expires At
====== ========= ========= ======== ====== ============== ===========
Te 4/37 189.17.9.2/30 0.0.0.0 189.17.9.1 BOUND 06-12-2012 07:35 01-18-2038 11:14
Renew Time Rebind Time
========== ========
09-05-2023 04:56 11-06-2034 13:46
The following example shows the packet- and event-level debug messages displayed for the packet transmissions and state
transitions on a DHCP client interface when you enable and disable a DHCP client.
Dell (conf-if-te-0/1)# ip address dhcp
May 27 15:52:46: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT: Interface Te
0/1 :
DHCP ENABLE CMD Received in state START
May 27 15:52:48: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT: Interface Te
0/1:
Transitioned to state SELECTING
May 27 15:52:48: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_PKT:
DHCP DISCOVER sent in Interface Te 0/1
May 27 15:52:48: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_PKT:
Received DHCPOFFER packet in Interface Te 0/1 with Lease-Ip:10.16.134.250,
Mask:255.255.0.0,Server-Id:10.16.134.249
May 27 15:52:51: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT: Interface Te
0/1 :
IP STATUS MESSAGE Received in state SELECTING status: 0
May 27 15:52:51: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT: Interface Te
0/1 :
Transitioned to state REQUESTING
May 27 15:52:51: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_PKT:
DHCP REQUEST sent in Interface Te 0/1
May 27 15:52:51: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_PKT:
Received DHCPACK packet in InterfaceGi 0/1 with Lease-IP:10.16.134.250, Mask:255.255.0.0,
May 27 15:53:01: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT: Interface Te
0/1 :
IP STATUS MESSAGE Received in state REQUESTING status: 0
May 27 15:53:01: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT: Interface Te
0/1 :
Transitioned to state BOUND,IP Address: 10.16.134.250 Renewal in 2582 seconds
Dell (conf-if-te-0/1)# no ip address dhcp
May 27 15:53:40: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT: Interface Te
0/1 :
DHCP DISABLE CMD Received in state BOUND
May 27 15:53:40: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_PKT:
DHCP RELEASE sent in Interface Te 0/1
May 27 15:53:40: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT: Interface Te
0/1 :
Transitioned to state START
May 27 15:53:40: %STKUNIT0-M:CP %DHCLIENT-5-DHCLIENT-LOG: DHCLIENT_DBG_EVT: Interface Te
Dynamic Host Conguration Protocol (DHCP)
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