All of our products are running an embedded version of Linux (uClinux) that has a lot of common shell features available. IPs and ports can be firewalled on our products using ipfwadm. This is considered advanced and you should have Linux CLI experience. This is a non-supported feature.
Block port 80
Block Telnet
Block everything by IP
After you have tested your rules and they are working, you'll need to add the line(s) to the end of the /etc/config/start file, save the file and then permanently save the changes to flash memory by typing:
If you've blocked yourself and are no longer able to telnet/browse to the device, you will have to connnect using the serial cable to reset the camera (config clear) or change your firewall rules. Use ipfwadm -h for help.