Hey, just for curiosity. What are those internal UDP loop connections? You missed the hyphen before "p". Either netstat -tup or netstat -t -u -p
/home/user # netstat -t -u -p netstat: invalid option -- p BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) multi-call binary Usage: netstat [-laentuwxr] /home/user #