You can have "bootpd" more verbose :
- edit /etc/inetd.conf and modify "bootps" line to add "-d 1", "-d 2" or "-d 3" (fix level of verbosity [man bootpd]). It could give something like :
bootps dgram udp wait root /usr/lbin/bootpd bootpd -d 3
- tell inetd to re-read its configuration file :
inetd -c
- if it is present kill "bootpd" daemon.
Now, you will have many informations in /var/adm/syslog ... maybe too much !
After you have troubleshoot your problem, don't forget to delete option "-d X" in /etc/inetd.conf
here you have more info: