dhcpd will not take option 150
 

I'm running centos 6 with dhcp-4.1.1-43.P1.el6.centos.1.x86_64
I cannot get dhcpd.conf to accept option 150, I've been trawling google seeing lots of examples but none of them work when I try them in dhcpd.conf, the log keeps complaining of 'unknown option'.
Does anyone know:
1) if my version actually supports option 150
2) when the correct syntax should be

Have you tried the format given here :-

http://askubuntu.com/questions/26779...r-cisco-phones

Note where you need to have each line as the first is a global option.

yes thankyou, that was the first page I found in my google searching, however it was late at night and I didn't read it properly. After a nights' sleep I've read it again and now I have option 150 working. Thanks for your help.