Extremely simple redirect rule doesnt appear to be working

[Balázs Mátéffy]

Hi there,

I think you should check pfctl -sr and pfctl -sn that your rules are ok, and
you don't deny that traffic explicitly.

However, I don't want to start a war, but on a machine I experienced that
with FreeBSD 7.0 or 7.1 the pf redirections didn't work, after a minor
release update, the problem went away with the same ruleset! (I think it was
7.0 and updated to 7.1 to get it working again)

But rdr pass should add the permitting access rule for your redirection
entry.

Maybe logging can help you too: http://www.openbsd.org/faq/pf/logging.html

Hope this helps!

Best Regards,

MB.


2009/7/2 Tim Traver <tt-list at simplenet.com>

> Hi all,
>
> ok, I'm a little new to messing around with pf, but have come up for a need
> that it sounds like it should be able to solve.
>
> I want to be able to redirect outgoing http requests from the box back to
> local addresses on the box...
>
> In reading up, it appears that the redirect config line should do that, and
> in testing, I have a simple line like this in the pf.conf
>
> rdr pass inet proto tcp from any to 209.131.36.158 port 80 -> [internal
> address here] port 80
>
> now, I haven't made that internal address be an address on the local box
> yet, cause I'm testing to see how this works...
>
> I can manually telnet to [internal address here] port 80 with no problems
> and get the apache greeting.
>
> Once I turn on and load the pf.conf file (with pfctl -F all -f
> /etc/pf.conf), and I try to telnet to 209.131.36.158 port 80 (generic
> www.yahoo.com), I don't get redirected to the internal address port 80 and
> get the apache greeting that is expected...
>
> I did turn on port forwarding as per the instructions for NAT, although it
> didn't say if it was needed for rdr.
>
> net.inet.ip.forwarding=1
>
> in netstat, I see it trying to actually reach the ouside IP, which it cant,
> so the translation didn't appear to take affect...
>
> am I missing something ?
>
> Thanks,
>
> Tim.
>
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