I'm trying to configure the anti-spoofing on some newly installed Spark 1535 and 1555 gateways. These are all centrally managed so i'd expect to be able to manage this from the topology tab of the gateway object however when I edit the interfaces here and look at the anti-spoofing tab i'm seeing the settings all greyed out. I can see what appear to be the current settings but I can't change anything. I'm also seeing some enabled and some disabled which is strange as all gateways have been built in the same way.
There are no settings on the device directly (device-advanced settings), and nothing in global properties, but it's almost like there is a global setting somewhere on the SMS that is preventing me from changing the anti-spoofing settings on the spark devices.
I've been through the admin guide looking for options but it doesn't mention anything that suggests that there is a global control for this.
Can anyone advise what I'm missing here please?
Thanks, Steve