pf

[Samuel Martín Moro]

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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>

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