ip-up.d and portforwarding

Hi NG,

i´ve tried to write a script for automatic port forwarding.
manuall excecution is working fine, automatic excecution not what could be
problem.
i put the script in the /etc/ppp/ip-up.d directory.
a line like "echo >>test /etc/ppp" works, the other one not.



#!/bin/bash
extip=`/sbin/ifconfig ppp0 |awk '/inet /{print $2}'|sed -e s/addr://`
echo $extip
ipmasqadm portfw -f
ipmasqadm portfw -a -P tcp -L $extip vnc -R 192.168.0.43 vnc


there is an vnc entry in /etc/services

thanks
mick