How to create a secure rule for external access?

[BrunoMarques21]

Hello!

I created the rule below

But I'm having several bots going through this rule

I added an origin by geolocation

But they still have a lot of bot attacks

as the access is done by cell phone, there is no fixed IP address that can make the restriction, is it possible to do it by MAC address?

[PhoneBoy]

We do not offer any ability to create rules according to MAC address. 
Even if we did, MAC address is only useful if the machine is on the same LAN segment as the gateway.
Perhaps only allow the connection over a VPN connection?

[BrunoMarques21]

Thank you Phoneboy!

Aside from VPN connection would there be a way to apply greater security to mobile devices?

[PhoneBoy · Accepted solution]

Sure, you can use Harmony Mobile on the devices.
However, that won't translate to your Security Policy above.
In other words, you can't say "Only devices running Harmony Mobile can connect on these ports."
Sounds like an interesting RFE, though.