TFTP on scope

[Beavis]

hi list,

   I have a scope that i want to activate a TFTP server option. can
someone point me to some docs for DHCPD v3.1.0 with a tftp option. I
tried putting the following

option tftp-server-name <ip>

result: breaks dhcpd.conf

option option-150 <IP>

result: breaks dhcpd.conf


any help will be greatly appreciated.

-bea