I use an extra script to update my ipf.conf and ipnat.conf settings from
two template files.

If your using DHCP, check into /etc/dhclient-exit-hooks.

If your using ppp, check out /etc/ppp/ip-up.

Ron

On Sat, 1 Jun 2002, IvanK. wrote:

> Date: Sat, 1 Jun 2002 10:43:23 -0400
> From: IvanK. <chepati@yahoo.com>
> To: tech-net@netbsd.org
> Subject: rdr on a dynamic IP?
>
> Hi I need to redirect http traffic on port 80 of a dynamically assigned IP to
> an internal server.  The ipf documentations says the syntax is:
>
> rdr ne0 ExternalIP/mask port 80 -> InternalIP port 80 tcp
> rdr ne0 ExternalIP/mask port 80 -> InternalIP port 80 udp
>
> The problem is that ExternalIP is, as I mentioned, dynamic and I have no way
> of knowing what it is.  PF allows you to use an interface and the translation
> from interface to ip is done at run time.  This however doesn't seem to be
> the case with ipf.
>
> Anyone can help me?
>
> Thanks,
> chepati
>
>