Date: Tue, 28 Dec 2021 13:33:08 -0600 From: Alex Thomas <karlthane@gmail.com> To: questions@freebsd.org Subject: Re: PF and tun1 Message-ID: <CABMOuVer0Dy1D0sMAjTJCFee%2B9Lpjo8899c6KKOZyHtwZCh%2Bgg@mail.gmail.com> In-Reply-To: <5f2cca65-daab-989c-5fd0-6a5373f5bd56@pp.dyndns.biz> References: <CABMOuVfxHtXzR0EC7P1h1KPYjpyxX9FnTyexLW4sThDpaE8PfA@mail.gmail.com> <5f2cca65-daab-989c-5fd0-6a5373f5bd56@pp.dyndns.biz>
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I have tried that, and have commented out the table for rfc6890 and
the rules for it. Still not having any success.
On Tue, Dec 28, 2021 at 1:28 AM Morgan Wesstr=C3=B6m
<freebsd-database@pp.dyndns.biz> wrote:
>
> On 2021-12-28 02:55, Alex Thomas wrote:
> > I am trying to get nebula working on tun1 with pf as my firewall. If I
> > turn pf off, everything works. How to I tell pf to ignore / let
> > everything pass on the tun1 device.
> >
> > vtnet0 =3D "vtnet0"
> > nebula1 =3D "tun1"
> > icmp_types =3D "{ echoreq unreach }"
> > table <bruteforce> persist
> > table <rfc6890> { 0.0.0.0/8 10.0.0.0/8 100.64.0.0/10 127.0.0.0/8
> > 169.254.0.0/16 \
> > 172.16.0.0/12 192.0.0.0/24 192.0.0.0/29 192.0.2.0/24
> > 192.88.99.0/24 \
> > 192.168.0.0/16 198.18.0.0/15 198.51.100.0/24
> > 203.0.113.0/24 \
> > 240.0.0.0/4 255.255.255.255/32 }
> >
> > set skip on lo0
> > set skip on tun1
> > set skip on $nebula1
> > scrub in all fragment reassemble max-mss 1440
> > antispoof quick for $vtnet0
> > block in quick on egress from <rfc6890>
> > block return out quick on egress to <rfc6890>
> > block all
> > pass in on $vtnet0 proto tcp to port { 22222 } \
> > keep state (max-src-conn 15, max-src-conn-rate 3/1, \
> > overload <bruteforce> flush global)
> > pass out proto { tcp udp } to port { 22 53 80 123 443 }
> > pass out inet proto icmp icmp-type $icmp_types
> >
>
> In my experience the skip rules only work on interfaces that are availabl=
e when
> pf starts, which excludes tun-interfaces. I don't know if this is by desi=
gn.
> Remove your skip rules for tun1 and $nebula1 and just add a pass rule for=
that
> interface:
>
> pass on tun1 all
>
> Additionally, since you're quick blocking all traffic to and from private=
IP
> addresses, make sure you don't use any of those IP addresses on tun1.
>
> /Morgan
>
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