[Adrian Schneider]

Here's an example for the subnet permissions:

global_start

PHP Code:

function cidr_match($ip, $range) 
{
    list($subnet, $bits) = explode('/', $range);

    $ip = ip2long($ip);
    $subnet = ip2long($subnet);
    
    $mask = -1 << (32 - $bits);
    $subnet &= $mask;

    return $subnet == ($ip & $mask);
}

// deny users who match this
if (!cidr_match($_SERVER['REMOTE_ADDR'], '192.168.12.0/23')) 
{
    print_no_permission();
} 


I can give a full example with forum permissions later this week. Not enough time at the moment.