In some use cases, it make sense to authorize the usage of some services only from specific hosts. Just like ACLS for Service Authorization , there can be a list of hosts for each service and this list can be checked during authorization.
Similar to ACLS, there can be a whitelist of ip and blacklist of ips. The default whitelist will be * and default blacklist will be empty. It should be possible to override the default whitelist and default blacklist. It should be possible to define whitelist and blacklist per service.
It should be possible to define ip ranges in blacklists and whitelists