IP address defined on /8 network

I was reviewing the configuration for my hAPax3 and saw something that struck me as odd:

/ip address
add address=192.168.88.110/8 interface=bridge1 network=192.0.0.0

I don’t remember adding this to the configuration myself (although it has been several years since I set the hAPax3 up). I have some questions.

Where does this come from? Is it in the default configuration that ships with the device, or is it generated if you use Quick Set for your initial configuration (as I probably did)?

Why would the address of the bridge be configured this way? My home LAN (like most people’s) is configured as /24 - why would you want a wider network than that?

Is there any downside to leaving it this way? or should I define it as /24 as I would have expected?

You can use this CLI command to show the default configuration :

/system/default-configuration/print

If not in this default.... maybe you or a ghost... or me, who knows ! LOL
Whats is your dhcp pool ? if not "over 192.168.88" and if you don't use any manual ip "over 192.168.88", you can switch /8 to /24

There is no DHCP pool on the hAPax3. It is acting as an access point. DHCP is provided by an upstream RB5009.

I printed the default config as you suggested. There’s no /ip address add statement in the default config and no reference to a /8 network.

My money is on the idea that Quick Set did this on my initial setup. But perhaps I will never know.

[admmikrotik@ap70a] > /system/default-configuration/print
..................
                    #| LAN Configuration:                                                                                                        
                    #|     IP address 192.168.88.1/24 is set on bridge (LAN port)                                                                

..................
                                                            
                          /ip address add address=192.168.88.1/24 interface=ether1 comment="defconf";

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