I don't know what they are, you can do a packet dump on wan interface facing internet and ip6 and see what is happening
diag sniffer packet wan1 "ip6 and port 53"
eg for ipv4
diag sniffer packet wan1 "ip and port 53 and dst net 208"interfaces=[wan1]filters=[ip and port 53 and dst net 208]0.296323 199.188.xxx.xxx.1981 -> 184.108.40.206.53: udp 301.117361 199.188.xxx.xxx.1981 -> 220.127.116.11.53: udp 341.147333 199.188.xxx.xxx.1981 -> 18.104.22.168.53: udp 34
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