> Other problem is perhaps that cidr prefixes are not compatible
> to not continuous masks like 255.0.255.0 :(

I thought non-contiguous masks were officially deprecated by now, at
least in the context of BGP (which may not apply here, I know).  I
can't find the RFC quotation right now, though.  However, non-
contiguous masks makes for enough pain and potential confusion that
it's probably not wise to use them anyway.

- H=E5vard