Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 25 Mar 2005 01:22:53 +0100
From:      Max Laier <max@love2party.net>
To:        freebsd-pf@freebsd.org, jon@abccomm.com
Subject:   Re: Isn't there a way to parse, don't load rules and complain about syntax errors or missing variables ?
Message-ID:  <200503250123.01060.max@love2party.net>
In-Reply-To: <8eea04080503241516211d5aea@mail.gmail.com>
References:  <787dcac20503241448430a7de2@mail.gmail.com> <8eea04080503241516211d5aea@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
--nextPart2524232.sBkiDuRPJc
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

On Friday 25 March 2005 00:16, Jon Simola wrote:
> On Thu, 24 Mar 2005 16:48:48 -0600, BB <brent.bolin@gmail.com> wrote:
> > However when I looked at the configuration file again the scrub rule
> > had the explicate interface name fxp0
> >
> > This new box doesn't have fxp0
>
> It will probably make sense if you think that some interfaces like
> vlan and tun are created and destroyed. You probably don't want to
> reload your firewall config everytime you bring up a PPP link.

That's part of the reasoning.  Also you usually want to have rules to block=
=20
PPP traffic *before* you bring up the link etc. ... in the end it's=20
hard^Wimpossible to satisfy everybody.  As for "detecting" this kind of=20
foot-shooting, you can do a "$pfctl -vsI | grep placeholder" after you load=
ed=20
the ruleset.  Something that should probably go to a TBD "Debugging PF - be=
st=20
pratices" article in our doc tree.  Any takers :-)

> ipfw has the same feature.

Not quite.  IPFW just does pattern matching on the interface name, somethin=
g=20
that is even more nasty and can be a lot of fun when you have vlan1 and=20
vlan11.  But that just as a sidenote.

=2D-=20
/"\  Best regards,                      | mlaier@freebsd.org
\ /  Max Laier                          | ICQ #67774661
 X   http://pf4freebsd.love2party.net/  | mlaier@EFnet
/ \  ASCII Ribbon Campaign              | Against HTML Mail and News

--nextPart2524232.sBkiDuRPJc
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (FreeBSD)

iD8DBQBCQ1nkXyyEoT62BG0RArFSAJ4xCSLncAgpN8mwbdz/p+b/i0JatACdFcF2
cfyfuFi620+NwJ6gWe3zqKA=
=1Vre
-----END PGP SIGNATURE-----

--nextPart2524232.sBkiDuRPJc--



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200503250123.01060.max>