hosts.deny file question...

[John Roberts]

        If i'm trying to deny connections to my box from a certain set of
IP's, say everyone from 206.192.* for example, how would i go about adding
that to my hosts.deny file?  I've added that line, and in my logs i get an
error saying that line 10 doesn't have a ':' separator.  I know it has to
be something simple, that i'm just not seeing.

Thanks,
John