Using Comodo products with networking

I have my desktop networked wirelessly with my laptop. Do I need to install the firewall and antivirus on both machines, or do the desktop installations automatically find the laptop and monitor it? Thanks.

Can you be a bit specific please?

No, you need protection installed on both. The desktop securities will not prevent your laptop from going under attack. Just as a typical network as I have, all machines, laptops , must have their own securities installed.