Traffic from internal network to internal address is being blocked?

Question

Hi Community, 
 i have a general question. I have some rules that allow internal network traffic to the internal network, like netbios for example. i now recognized that the traffic that is being sent to the UTM itself (which ist at 192.168.0.9) is being blocked. shouldn't the rule "ALLOW INTERNAL NETWORK --> NETBIOS --> INTERNAL NETWORK" include the traffic that is sent to the UTM itself? or do i have to explicitly include the INTERNAL ADDRESS into the rules as allowed targets? see picture below. 
 so, does this make sense or is this rule bulls....: 
 
 does this make any problems, if the internal address is not included in the sources and the targets of the rules, that only handle internal stuff? should i include the internal address always, when allowing traffic from internal to internal? i do not want to block out important internal things like internal dns resolution or lan traffic. 
 
 notes: 192.168.0.12 is my pc where i sit right now, 192.168.0.115 is my raspberry pihole adblocker that forwards dns requests from the utm, 192.168.0.9 is the utm internal address. 
 when i enable to rule from above in the picture, the traffic to the UTM is being allowed of course.

BAlfson · Answer

You can nuke your firewall rule #3, Chris, as it has no effect - traffic within the subnet should never be directed to the MAC address of the NIC used by your Internal interface. 
 The problem is that your PC is trying to send a NETBIOS Name Service query to the UTM. 
 What device is doing DHCP? Do you have an internal server doing that? It should be handing out a correct WINS server. 
 Cheers - Bob