Re: SCO 5.0.7 AS ROUTER

From: Brian K. White (brian_at_aljex.com)
Date: 05/23/05 

Date: 23 May 2005 13:46:16 -0400

----- Original Message -----
From: "Jean-Pierre Radley" <jpr@jpr.com>
Newsgroups: comp.unix.sco.misc
To: <distro@jpr.com>
Sent: Sunday, May 22, 2005 12:33 PM
Subject: Re: SCO 5.0.7 AS ROUTER

> Mainak Yajnik typed (on Sun, May 22, 2005 at 09:04:41AM -0700):
> | I refered the document mentioned above in the message,
> |
> | Issued the command after login as root
> |
> | ipnat -FC -f - <<EOF
> | >map net0 203.112.130.18/24 - 192.168.0.227/24
> | >EOF
> |
> | It still does not passon the packets from 192,168.0.227 network to the
> | internet 203.112.130.18 is the Public IP
>
> I assume that net0 is for the outside NIC, not the inside 192.168 NIC.
> If not, then you want the remapping to be on net1.
>
> Anyhow, you have it wrong. You want to map anything on 192.168.0 (a /24
> network) to the single public address at 203.112.130.18. And you need
> '->', not '-', in the map command.
>
> Put this into /etc/ipnat.rules:
>
> map net0 198.207.0.0/24 -> 203.112.130.18/32
>
> and run
> /etc/ipnat -CF -f /etc/ipnat.rules
>
> You should put that last command into /etc/rc.d/7/* so that it runs when
> you reboot,

/etc/init.d/ipfnat already exists in the base system and it looks for
/etc/ipnat.conf and /etc/ipf.conf
put nat rules like above in /etc/ipnat.conf
put firewall rules in /etc/ipf.conf
you can run /etc/init.d/ipfnat stop/start whenever you want and symlink it
to /etc/rc2.d/S99ipfnat so it runs at boot.

So I would:

  echo "map net0 198.207.0.0/24 -> 203.112.130.18/32" >/etc/ipnat.conf
  ln -s /etc/init.d/ipfnat /etc/rc2.d/S99ipfnat
  /etc/init.d/ipfnat stop
  /etc/init.d/ipfnat start

And from then on, edit ipnat.conf and ipf.conf to add/remove rules
and run /etc/init.d/ipfnat stop ; /etc/init.d/ipfnat start to get changes
into effect without rebooting.

Brian K. White -- brian@aljex.com -- http://www.aljex.com/bkw/
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