3Com Router 3031, Command Reference Manual

Page: 408 / 838

408 C
HAPTER
5: N
ETWORK
P
ROTOCOL
DHCP Server
Configuration
Commands
debugging dhcp server Syntax
debugging dhcp server { all | error | events | packets }
undo debugging dhcp server { all | error | events | packets }
View
User view
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
Using the debugging dhcp server command, you can enable debugging on the
DHCP server. Using the undo debugging dhcp server command, you can 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: