Information classes, and their types?

[Jason Gerfen]

Hello, I am looking through the documentation (man dhcpd.conf, dhcpd 
etc) and have only found limited information regarding classes, 
subclasses, match if options.

Besides sorting through tons of data on the mailing list (as I have seen 
a few posts regarding specific options such as 43 etc.) is there one 
location that lists the various class option types etc?

Thanks in advance.

-- 
Jas