Winreshark filter

1. IPV4 only  
ip 
2. IPV4 only    bacnet without dns 
ip && bacnet && (!dns)

3. only 192.168.3.31
ip && bacnet && (!dns) && (ip.addr == 192.168.3.31)

4. Single direction  

ip && bacnet && (!dns) && (ip.src == 192.168.3.31 || ip.dst != 192.168.3.255)