Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide Chapter 9 DHCP Configuration Commands
3Com Corporation
9-7
Parameter
all: All debugging functions of DHCP server.
error: Error debugging on the DHCP server, specifically, the debugging on the errors
that occur when the DHCP server processes DHCP packets, allocates addresses, etc.
events: Event debugging on the DHCP server, specifically, the debugging on the
events such as address allocation, ping detection timeout, etc.
packet: DHCP packet debugging, specifically, the debugging on the packets that the
DHCP server has received and sent and on the ping packets sent for the purpose of
detection and the received response packets.
Description
Use the debugging dhcp server command to enable debugging on the DHCP server.
Use the undo debugging dhcp server command to disable debugging.
By default, debugging is disabled on the DHCP server.
Example
# Enable event debugging on the DHCP server.
<3Com> debugging dhcp server events
*0.62496500-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: ICMP Timeout
*0.62496583-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: Still Need to ICMP detect for 1 times
*0.62497000-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: ICMP Timeout
*0.62497083-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: All Try finished
*0.62497166-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: Ack User's Lease
# Enable packet debugging on the DHCP server.
<3Com> debugging dhcp server packet
*0.62080906-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: receive DHCPRELEASE from 00.05.5D.85.D5.45.
*0.62081016-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: Release Lease for MAC 00.05.5D.85.D5.45. IP is 5.5.5.2
*0.62082240-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: receive DHCPDISCOVER from 00.05.5D.85.D5.45.
*0.62082350-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: Sending ICMP ECHO to Target IP: 5.5.5.2
*0.62082733-DHCP SER-8-DHCPS_DEBUG_COMMON:
DhcpServer: Sending ICMP ECHO to Target IP: 5.5.5.2