HP-UX IP Address and Client Management Administrator's Guide (October 2009)

Name Server Debugging............................................................................................................93
Dumping the Name Server Database.........................................................................................94
Problem Symptoms.........................................................................................................................94
Name Server Problems....................................................................................................................95
Understanding Name Server Debugging Output...........................................................................98
Example 1: No Retransmissions.................................................................................................98
Example 2: Retransmissions.....................................................................................................100
Name Server Statistics...................................................................................................................100
3 Configuring the BOOTP and TFTP Servers..............................................................103
Configuring the BOOTP Server..........................................................................................................103
Procedure for Configuring bootpd................................................................................................103
Verifying bootpd Installation.........................................................................................................104
Adding Client or Relay Information...................................................................................................104
Collecting Client Information........................................................................................................105
Collecting Relay Information.........................................................................................................105
Understanding Boot File Configurations......................................................................................105
Parameter Tags and Descriptions..................................................................................................106
Examples of Adding BOOTP Clients.............................................................................................107
Example 1: Adding an HP 700/X Terminal as a Client.............................................................107
Example 2: Adding a Relay Entry............................................................................................108
Configuring the TFTP Server..............................................................................................................110
Procedure for Configuring tftpd...................................................................................................110
Verifying the tftpd Installation......................................................................................................111
Command Options for Using TFTP....................................................................................................111
Troubleshooting BOOTP and TFTP Servers.......................................................................................112
Helpful Configuration Changes....................................................................................................112
Common bootpd Problems............................................................................................................112
Common tftpd Problems...............................................................................................................115
Error Logging.................................................................................................................................117
Information Log Level..............................................................................................................117
Notice Log Level.......................................................................................................................118
Error Log Level.........................................................................................................................118
4 Configuring DHCP.....................................................................................................121
Dynamic Updates to the DHCP Server...............................................................................................121
Dynamic DNS Server Update Pre-Requisites................................................................................121
Configuring the DHCP Server to Perform Dynamic Updates......................................................122
Configuring DHCP to Assign and Distribute IP Addresses...............................................................122
DHCP Device and Pool Group Configuration..............................................................................122
Pool Groups..............................................................................................................................122
DHCP Device Group................................................................................................................123
Complex DHCP Pool and Device Group Files ........................................................................124
DHCP Individual Device Configuration ......................................................................................125
DHCP Configuration through BOOTP Relay Agent.....................................................................125
Configuring PING Timeouts.........................................................................................................126
Monitoring and Troubleshooting DHCP Operations.........................................................................126
Troubleshooting Techniques..........................................................................................................127
Using Syslog with Debugging Turned On...............................................................................127
Tracing DHCP Packet Flow......................................................................................................127
Dumping the Internal State of the Daemon.............................................................................128
DHCP Troubleshooting Tools........................................................................................................128
Callbacks........................................................................................................................................129
6 Table of Contents