Re: simple macros?

In some email I received from Peter Postma, sie wrote:
> On Sun, Dec 05, 2004 at 06:46:02PM +0100, uhel wrote:
> > Hi,
> >
> > i've read that IPF 4.1.x supports simple macros but i've found no
> > example. I updated my NetBSD box to 2.0 which has IPF 4.1.3 but it
> > has an old manpage without macros..
> > Can anyone give me one or two examples howto use the marco thing?
> >
>
> Here are a few examples:
>
> ext_if="ex0";
> lo_if="lo0";
> tcp_flags="S/SA";
> tcp_services="(22, 80, 443)";
> private_nets="(192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8)";

You can also nest them...e.g.

net10="10.0.0.0/8";
private_nets="(192.168.0.0/16, 172.16.0.0/12, $net10)";

or....
ipf -nvf -
net10="10.0.0.0/8";
private_nets="(192.168.0.0/16, 172.16.0.0/12, $net10)";
pass in from $private_nets to any
^D
pass in from 192.168.0.0/16 to any
pass in from 172.16.0.0/12 to any
pass in from 10.0.0.0/8 to any

Darren