$HTTP["remoteip"] !~ "192.168.2\.|192.168.0\.|^10.8.9\." {
url.access-deny = ( "" )
}
or to include for the 192.168.0.0 network only this range: 192.168.0.180 - 192.168.0.188
$HTTP["remoteip"] !~ "192.168.2\.|192.168.0.18[0-8]|^10.8.9\." {
url.access-deny = ( "" )
}