I used the gui to create the rule and network object and the command line then to fill the IP’s i wanted adding to my block list. But from the command line you can create your object group doing the following – hostname (config)# object-group network BlockUnwanted hostname (config-network)# network-object 1.178.179.217 255.255.255.255 This will add Read more about Using a ACL to block unwanted IP’s – Cisco ASA[…]