As far as I know, pf = no; an http (or ip) proxy = yes.
But, please explain how you expect www.google.com:p2 to work when client

wants www.google.com:p1 (meaning www.google.com:80)?
-----Original Message-----

From: Karel Galuska

To: scott <8f27e956@gmail.com>

Cc: misc@openbsd.org

Subject: Re: pf change destination port for outgoing traffic

Date: Wed, 9 Apr 2008 11:46:34 +0200

Mailer: Microsoft Outlook Express 6.00.2900.3138

Delivered-To: 8f27e956@gmail.com
any public server on the Internet
----- Original Message -----

From: "scott" <8f27e956@gmail.com>

To: "Karel Galuska"

Cc:

Sent: Wednesday, April 09, 2008 11:24 AM

Subject: Re: pf change destination port for outgoing traffic
> When you say, "...b.b.b.b represents every server the client wants," do

quoted text
> you mean (i) every server from a known set of servers, or do you mean

> (ii) any server --public and private-- on the Internet?

>

>

> -----Original Message-----

> From: Karel Galuska

> To: misc@openbsd.org

> Subject: pf change destination port for outgoing traffic

> Date: Wed, 9 Apr 2008 08:23:50 +0200

> Mailer: Microsoft Outlook Express 6.00.2900.3138

> Delivered-To: 8f27e956@gmail.com

>

> Hi all,

> I use OpenBSD as a firewall with nat function for local network.

> For special reason now I need change some destination ports for outgoing

> traffic to every

> internet server.

>

> For example when internal PC a.a.a.a wants to connect internet server

> b.b.b.b

> on port p1 I need transparently redirect connection to port p2 of the same

> internet server b.b.b.b.

> But b.b.b.b represents every internet server, which client wants to

> connect.

>

> Could you please help me construct the pf rule?

>

> Thanks

> Karel