Date: Thu, 8 May 2008 10:12:52 +0200 From: CZUCZY Gergely <gergely.czuczy@harmless.hu> To: Oleksandr Samoylyk <oleksandr@samoylyk.sumy.ua> Cc: freebsd-pf@freebsd.org Subject: Re: iptables rule in pf Message-ID: <20080508101252.4d25b9eb@twoflower.in.publishing.hu> In-Reply-To: <4822B459.6090307@samoylyk.sumy.ua> References: <48222786.3050400@samoylyk.sumy.ua> <20080508085234.2cac29ca@twoflower.in.publishing.hu> <4822B459.6090307@samoylyk.sumy.ua>
next in thread | previous in thread | raw e-mail | index | archive | help
[-- Attachment #1 --] On Thu, 08 May 2008 11:05:45 +0300 Oleksandr Samoylyk <oleksandr@samoylyk.sumy.ua> wrote: > CZUCZY Gergely wrote: > > On Thu, 08 May 2008 01:04:54 +0300 > > Oleksandr Samoylyk <oleksandr@samoylyk.sumy.ua> wrote: > > > >> Dear Community, > >> > >> I want to move some of our firewalls from Linux/iptables to FreeBSD/pf. > >> > >> After reading man pf.conf for a couple of minutes I couldn't find the > >> realization of such iptables rule in pf: > >> > >> iptables -t nat -A PREROUTING -i ethX -d ! my.smtp.server -p tcp --dport > >> 25 -j DROP > > block in on $interface proto tcp from any to ! my.smtp.server port 25 > > > >> iptables -t nat -A PREROUTING -i ethX -p tcp --dport 2525 -j DNAT > >> --to-destination :25 > > rdr on $interface proto tcp from any to port 2525 -> > > <the_destionation_you_have_omitted> port 25 > > I meant _any_ destination with 25 port. > > That iptables rule worked for any destination. You cannot rewrite a packet's destination address to _any_ destination. It's like you cannot submit a package at the post office with the destination address "any". It's just meaningless. > > >> How it can be rewriting in pf.conf? > > be sure to read the openbsd faq: > > http://www.openbsd.org/faq/pf > > > > pf works quite differently then iptables, it has a different logic. you will > > get used to it. just forget these "tables" which you've got used to with > > iptables. > > > -- Üdvölettel, Czuczy Gergely Harmless Digital Bt mailto: gergely.czuczy@harmless.hu Tel: +36-30-9702963 [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.3 (FreeBSD) iD8DBQFIIrYGzrC0WyuMkpsRAiCZAJ0UDnS92X2rwCbxPGu24LFQM8s50ACdFaAN kzy6AVUv+J/ELAVXYWq/SME= =Kvrc -----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20080508101252.4d25b9eb>