Already there.. just specify ports you want to use for device, and seperate them with commas.. 
 
[HighPriority_Device] 
Host = 0.0.0.0 
Ports = 23,24,80,443 
 
But this isnt really needed, if you run your server at port 24, 25, 81 or 444 and use ACTIVE mode.
		 
		
		
		
		
		
		
		
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