Date: Wed, 4 May 2016 16:53:59 +0200 From: Kristof Provost <kristof@sigsegv.be> To: Alan Somers <asomers@freebsd.org> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: How to use pf with vimage jails? Message-ID: <4EBFFB72-B185-4272-ACDF-B6B576ADE0D2@sigsegv.be> In-Reply-To: <CAOtMX2hLhLGPU%2B6qb9ROd1P3vvazb_k3K6p0Q5A5a-znVzJQcg@mail.gmail.com> References: <CAOtMX2jtxjUxiOv_LqO8Gg5AhXrSBb%2BWatCktx7y03w=st=w3w@mail.gmail.com> <67045371-07B8-4718-8A8B-98E3FBFF994E@sigsegv.be> <CAOtMX2hLhLGPU%2B6qb9ROd1P3vvazb_k3K6p0Q5A5a-znVzJQcg@mail.gmail.com>
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> On 04 May 2016, at 16:48, Alan Somers <asomers@freebsd.org> wrote: > > On Wed, May 4, 2016 at 4:23 AM, Kristof Provost <kristof@sigsegv.be <mailto:kristof@sigsegv.be>> wrote: > > > On 04 May 2016, at 04:55, Alan Somers <asomers@freebsd.org <mailto:asomers@freebsd.org>> wrote: > > > > Is there any documentation on how to run pf on a host, using it to control > > access to vimage jails? I see that only ipfw can be run from _inside_ of > > the jail, but I'm interested in running pf _outside_ of the jail. > > That’s supported, and really no different from configuring pf otherwise. > Just treat the vimage jails as if they were on different machines, behind your firewall. > > Regards, > Kristof > > > Then maybe it's the bridged aspect that's screwing me up. Is there a guide for using pf on bridged interfaces? All I can find is this guide for ipfw. > Treat a bridge as a simple interface, pretend that the bridge members are just devices plugged into a switch connected to the bridge interface. > https://www.freebsd.org/doc/en/articles/filtering-bridges/article.html <https://www.freebsd.org/doc/en/articles/filtering-bridges/article.html>; > That’s a filtering bridge, which is a different use case. On a filtering bridge the firewall device doesn’t need an IP, instead interpreting the layer 2 packets. pf can do this (see the net.link.bridge.pfil_bridge sysctl), but there are major problems with the implementation. I’d discourage you from using this. Regards, Kristof
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