I would like to block, i.e. deny access to an entire IP range as source in CISCO ASA5505 firewall and ACL using Security Device Manager (SDM).
I know how to block any individual IP using SDM, but I do not know how to define an entire range, for example: 100.100.0.0. up to 100.100.255.255.
Please look at the attached .jpeg figure.
Any help on specific steps to make using SDM interface, please?