Thanks. Yes, 'HelloWorld-5555' is my test tool.

I have reported it FB16656555

The issue seems to have been fixed on the 15.4 beta (24E5238a). After nslookup and dig continuously running, the ports are still not exhausted, and net.inet.udp.pcbcount has not continued to increase either.

The issue seems to have been fixed on the 15.4 beta (24E5238a). After nslookup and dig continuously running, the ports are still not exhausted, and net.inet.udp.pcbcount has not continued to increase either.

The issue seems to have been fixed on the 15.4 beta (24E5238a). After nslookup and dig continuously running, the ports are still not exhausted, and net.inet.udp.pcbcount has not continued to increase either.

The issue seems to have been fixed on the 15.4 beta (24E5238a). After nslookup and dig continuously running, the ports are still not exhausted, and net.inet.udp.pcbcount has not continued to increase either.

The issue seems to have been fixed on the 15.4 beta (24E5238a). After nslookup and dig continuously running, the ports are still not exhausted, and net.inet.udp.pcbcount has not continued to increase either.

The issue seems to have been fixed on the 15.4 beta (24E5238a). After nslookup and dig continuously running, the ports are still not exhausted, and net.inet.udp.pcbcount has not continued to increase either.