Is not letting add an IP address to firewall

[ttime]

I am going through my list of bad evil IP addresses (intercepted by Norton Trojan.Danabot) and incorporate into my group policy blocking INbound to WAN LAN VLAN which did not let me add the following IP with error:

The following input errors were detected:

    35.205.124.153 is not a valid source IP address or alias.

Any reason why this would happen?  When manual input of IP what number next to it (1-32) should I select?

Also would like to see more undo or cancel option after clicking check marks in the GUI.  Many times there is no option to cancel and are prompted to apply changes that I do not want to proceed with.

Also would be nice to see every intrusion policy and that the check marks stay as going through the pages.  Annoying that they are no longer selected after leaving page and going to the next page of the same.

Thanks for making this available for everyone and I do enjoy it so far as it is my first deployed firewall.

[ttime]

Never mind the error.  I cut and paste when did not work and decided to input manually and it went through after I posted this.  OOPS!