{
    my $internalif = $InternalInterface{Name};
    my $outernet = ($SystemMode eq "serveronly") ?
			$LocalIP : '$(/sbin/e-smith/config get ExternalIP)';

    $OUT .= <<HERE;

    INTERNALIF=$internalif
    OUTERNET=$outernet
    if [ -z "\$OUTERNET" ]
    then
        OUTERNET=1.1.1.1 # Put in placeholder address, to ensure correct iptables syntax
    fi
HERE

    if ($SystemMode ne "serveronly")
        { $OUT .= "    OUTERIF=".$ExternalInterface{Name} }
    else
        { $OUT .= "#    OUTERIF='there_isnt_one'"; }
}
