I want to allow all LAN traffic to my Ubuntu server. I have read the documentation and see the command, but when I try to edit the command for my IP range I get an error. How can I allow all traffic starting at 192.168.15.0 - 192.168.15.255?
sudo ufw allow from 192.168.15.0/255 ERROR: Bad source address
It seems like the 15 (third octal) is causing the error. Almost like UFW does not expect a LAN to have a unique IP set.