# netstat -a | grep ntpudp4 0 0 localhost.ntp *.* udp6 0 0 localhost.ntp *.* udp6 0 0 fe90::4352:3aaf:.ntp *.* udp4 0 0 MyBigFirewall.ntp *.* udp4 0 0 *.ntp *.* udp6 0 0 *.ntp *.*