On Tue,  6 Sep 2005 17:56:40 +0200
"[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:

> I have an important question:
> it's possible to define a filter that have as srcaddr or dstaddr
> all ip-address different from a host or a subnet?

this does not make a whole lot of sense. you could however make a filter
rule like this:

pass in on $interface from 10.10.10.0/24 to any

pf filters at layer 3, which means it's above the ethernet layer, unless
it's a bridge, but it's still a layer 3 bridge all the same.

i do not think you can filter packets based on their subnet mask. you
certainly cant filter on host name, why would you want to? a dns attack
is not too hard, there are many bugs in bind.

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