If you're running the gui version of ettercap then click on "Plugins" and then select "Manage the plugins". From the list select the "autoadd" plugin. This should add computers to the list after you have started arp poisoning. I believe you should use this plugin only after you have arp poisoned the network.So is there something i don't know about to keep ettercap current to keep adding a new host after ettercap is already ran?



