Bug#365140: debian-edu-config: enable-nat ignore other script that may exists to set up firewall rules

[Finn-Arne Johansen <faj@bzz.no>]

Package: debian-edu-config
Severity: normal

If you for any reason have some other firewall rules on a server were debian-edu-config is installed, the script enable-nat will most likely flush your natting rules. 

The best way to avoid this is to add an empty 
 NETWORK_TO_NAT= 
in the file /etc/default/enable-nat

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16-1-686
Locale: LANG=nb_NO.UTF-8, LC_CTYPE=nb_NO.UTF-8 (charmap=UTF-8)