Just switched ISPs and had to reconfigure firewall - looks like we are most of the way there but I can't seem to add secondary IPs under the WAN1 network interface.
Public IP information provided by our ISP is as follows:
IP range 2xx.xxx.xx.58 - 62
My addressing mode is set to manual with 2xx.xxx.xx.58/255.255.255.240 set as the primary
When I try adding 2xx.xxx.xx.59 / 255.255.255.40 then OK (or apply I've tried them both) the address does not appear in the secondary IP address list.
I'm probably missing something small but I'm stumped.....