Tftp Troubleshooting

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I am trying to do a network install of Solaris 10 08_07 onto a Sunfire T2000. I have configured all my network-boot-arguments on the client server (named sundb1). I have installed my image of Solaris on my install server (sun1).

But when I try to install using
# boot net -s
I get the error message of:
tftp transfer Timed out

I have tried to troubleshoot tftp on my install server and below is some of the info
# more /etc/release
Solaris 9 s9_58shwpl3 SPARC
Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 15 April 2002

inetd appears to be configured ok
# more /etc/inetd.conf
# TFTPD - tftp server (primarily used for booting)
tftp dgram udp6 wait root /usr/sbin/in.tftpd in.tftpd -s /tftpboot

inetd appears to be running ok
# ps -ef
root 263 1 0 Feb 27 ? 0:00 /usr/sbin/inetd -s

permissions on tftp appear to be okay
# ls -ld /tftpboot
drwxrwxrwx 2 root other 512 Feb 28 16:55 /tftpboot

# ls -l /usr/sbin/in.tftpd
-r-xr-xr-x 1 root bin 27600 Apr 7 2002 /usr/sbin/in.tftpd

tftp appears to function ok within the install server
# cd /tmp
# tftp
tftp> get sun1:/tftpboot/services
# ls -l
total 720
-rw——- 1 akil support 360372 Feb 28 11:02 dtdbcache_:0
-rw-rw—- 1 akil support 0 Feb 28 11:03 sdtvolcheck19253
-rw-r–r– 1 root other 0 Feb 29 10:06 services
-rw-r–r– 1 akil support 6 Feb 28 11:02 speckeysd.lock

I have tried to tftp using another server to the sun1 server and I get tftp timed out so the problem is not specific to my client server.

There are no error messages in /var/adm/messages

Any help is greatly appreciated