* add punch type log Signed-off-by: 21pages <sunboeasy@gmail.com> * show TCP/UDP/IPv6 in tooltip Signed-off-by: 21pages <sunboeasy@gmail.com> * Skip udp punch if udp nat port is 0 Signed-off-by: 21pages <sunboeasy@gmail.com> --------- Signed-off-by: 21pages <sunboeasy@gmail.com>