inet hosts question

Vincent Hoffman vince at
Fri Nov 14 07:17:48 PST 2008

Gary Hartl wrote:
> Hi all;
> I have a quick question, I am trying to block a range of ip's for the sake
> of example they are -
> For the life of me I can't remember how to do that.
What mechanism? null route, ipfw, ipf or pf
> I thought I could do it by using the /class ie /32 for class c but i can't
> remember what the class delegation is for that size of pool, I think it is a
> class B.
> for your example.
and yes this is a class B (not all /16s are though.)

the /x notation is called CIDR (classless interdomain routing.)

> All help would be appreciated.
> Cheers, 
> Gary 
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