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Re: Updating nat when external ip address changes

To: Chris Snow <Chris.Snow@hutchison3g.com>
Subject: Re: Updating nat when external ip address changes
From: Felix Kronlage <fkr-ml@grummel.net>
Date: Wed, 2 Oct 2002 10:45:12 +0200
Cc: "'misc@openbsd.org'" <misc@openbsd.org>
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Organization: we're mad and hazardous....*grrr*
References: <F3035F172B472247AED58C867616D0AB02164320@RETICULUM.h3guk.com>
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On Wed, Oct 02, 2002 at 09:36:40AM +0100, Chris Snow wrote:

> I have OpenBSD 3.1 as a firewall connected via cable modem to the internet.

do you run ppp on it?
then you could use ppp.linkup and ppp.linkdown (in /etc/ppp).

My ppp.linkup has following entries:

MYADDR:
    !bg /usr/local/bin/ddclient -daemon=0 -verbose
    ! /sbin/pfctl -N /etc/nat.conf

Thus, each time the link is established these things are executed.
hope this helps,
-fkr
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References:
- Updating nat when external ip address changes
  - From: Chris Snow <Chris.Snow@hutchison3g.com>

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