HP Comware 5 Debug Manual Vol 1

DHCP debugging commands
The output description tables in this document only contain fields and messages that require an
explanation.
debugging dhcp server
Use debugging dhcp server to enable DHCP server debugging.
Use undo debugging dhcp server to disabled DHCP server debugging.
Syntax
debugging dhcp server { all | error | event | packet }
undo debugging dhcp server { all | error | event | packet }
Default
DHCP server debugging is disabled.
Views
User view
Default command level
1: Monitor level
Parameters
all: Specifies all types of debugging for DHCP server.
error: Specifies DHCP server error debugging.
event: Specifies DHCP server event debugging.
packet: Specifies DHCP server packet debugging.
Examples
# Enable all types of DHCP server debugging. When a DHCP client requests an IP address from the
DHCP server, output similar to the following example is generated:
<Sysname> terminal debugging
<Sysname> debugging dhcp server all
*0.263828 Sysname DHCPS/7/DHCPS_EVENT:
Checking for expired lease.
// The DHCP server was checking for expired leases.
*0.278312 Sysname DHCPS/7/DHCPS_EVENT:
DHCPServer: Receive DHCPDISCOVER from 00e0.fc14.1601-Vlan-interface2 via 22.0.0.1.
*0.278312 Sysname DHCPS/7/DHCPS_PACKET:
Rx, interface Vlan-interface1
Message type: request
Hardware type: 1, Hardware address length: 6
Hops: 1, Transaction ID: 4281385283
Seconds: 0, Broadcast flag: 0
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