pf

krad kraduk at gmail.com
Mon Sep 27 12:05:34 UTC 2010


On 26 September 2010 21:45, jhell <jhell at dataix.net> wrote:

> This is more for questions@ or pf@
>
> On 09/26/2010 11:43, Samuel Martín Moro wrote:
> > On Sun, Sep 26, 2010 at 3:34 PM, Michael Powell <nightrecon at hotmail.com
> >wrote:
> >
> >> Samuel Martín Moro wrote:
> >>
> >>> Hello,
> >>>
> >>>
> >>> I'm trying to set up pf on my soon-to-be new gateway (8.1-RELEASE
> amd64).
> >>> I used the sample configuration file available on
> >>> calomel<https://calomel.org/pf_config.html>
> >>> After a few tests, it appears that the gate has fully access to the
> >>> internet, but I can't open connections from clients to distant servers
> >>> (web, ssh, ...).
> >>> Checking pflog log file, I can't see anything about those timeouts,
> even
> >>> if I added the log directive in every block/pass command.
> >>> Everything else seems to work, I can talk with my DNS from the
> internet,
> >>> ssh redirections to another pc also seems to works.
> >>> I just can't access the Internet from a client of my network...
> >>>
> >>> For debugging, I commented out the options and the 'block all in/out'
> >>> directives.
> >>>
> >>> Here's my config file http://pastebin.com/Nim2zBCx
> >>>
> >>> Is there someone understanding what I'm doing wrong?
> >>>
> >> The firewall ruleset is a trifle overly complex for a quick glance;
> study
> >> and analysis would take some doing. However, if you can reach the
> internet
> >> from the firewall box and other client computers behind your NAT can't
> >> (which is what it sounds like you're describing) it may be just that you
> >> are
> >> missing gateway_enable="YES" in your /etc/rc.conf.
> >>
> >> Turning this "ON" makes your firewall box into a router. The status of
> this
> >> can be checked with: sysctl net.inet.ip.forwarding  - a "0" means no
> >> gateway
> >> and a "1" means gateway.
> >>
> >> -Mike
> >>
> >>
> >>
> >> _______________________________________________
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> >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> >> To unsubscribe, send any mail to "
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> >>
> >
> > the gateway is already enabled (and forwarding is correctly set)
> > whatever, I had to do quick, I started again
> > I think the missing thing on my old conf was the 'scrub' (at least)
> > I made a more simple configuration, as following:
> >
> > ext_if="bge0"
> > int_if="bge1"
> > localnet = $int_if:network
> > emma="10.242.42.200"
> > alpha="10.42.42.42"
> > delta="10.42.42.44"
> > set skip on lo0
> > scrub in on $ext_if all fragment reassemble
> > #INTERNETZ
> > nat         on $ext_if from $localnet to any -> ($ext_if)
> > #EMMA
> > rdr         on $ext_if inet proto tcp from any to ($ext_if) port 1101 ->
> > $emma port 22
> > rdr         on $ext_if inet proto tcp from any to ($ext_if) port 307 ->
> > $emma port 80
> > #WHAT.CD
> > rdr         on $ext_if inet proto tcp from any to ($ext_if) port 1666 ->
> > $alpha port 1666
> > #REMOTE ADM
> > rdr         on $ext_if inet proto tcp from any to ($ext_if) port 1667 ->
> > $delta port 22
> > rdr         on $ext_if inet proto tcp from any to ($ext_if) port 1668 ->
> > $alpha port 22
> > pass in log on $ext_if inet proto tcp from any to $ext_if port 22
> > pass in log on $ext_if inet proto tcp from any to $ext_if port 53
> > pass in log on $ext_if inet proto udp from any to $ext_if port 53
> > pass in log on $ext_if inet proto tcp from any to $ext_if port 1664
> > pass in log on $int_if inet proto tcp from any to any
> > pass in log on $int_if inet proto udp from any to any
> > block in log on $ext_if inet proto icmp from any to $ext_if
> >
> > it's basically working
> > i'll stuff it when I'll have time.
> >
> > Samuel Martín Moro
> > {EPITECH.} tek5
>
>
> --
>
>  jhell,v
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>


its worth doing as restart on pf rather than a reload. Ive seen nat rules
not take affect sometimes on reloads


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