Web GUI:
1. Advanced menu
a. Inbound Filter
- The 'Add Inbound Filter Rule' does not allow subnet based range.
Example: 192.168.1.224 255.255.255.224
It will result in error message "Invalid IP address: 255.255.255.224" when click on the Add button.
However, if I use specific ip address, eg. 192.168.1.230 255.255.255.255, it works fine when click on the Add button.
Use of subnet-based range used to work in previous firmwares, and I still have the configuration populated via configuration file. However, now with newer firmwares, when I tried to add new rules, the validation mechanism does not allow me to use subnet-based range.