Which of the following types of logs is shown below, and what can be discerned from its contents?
2015-07-19 12:33:31 reject UDP 146.64.21.212 192.141.173.72 1234 80
2015-07-19 12:33:31 reject UDP 166.32.22.12 192.141.173.72 1234 80
2015-07-19 12:33:31 reject UDP 123.56.71.145 192.141.173.72 1234 80
2015-07-19 12:33:31 reject UDP 146.64.21.212 192.141.173.72 1234 80
2015-07-19 12:33:32 reject UDP 166.32.22.12 192.141.173.72 1234 80
2015-07-19 12:33:32 reject UDP 123.56.71.145 192.141.173.72 1234 80
2015-07-19 12:33:32 reject UDP 146.64.21.212 192.141.173.72 1234 80
2015-07-19 12:33:33 reject UDP 166.32.22.12 192.141.173.72 1234 80
2015-07-19 12:33:33 reject UDP 123.56.71.145 192.141.173.72 1234 80
2015-07-19 12:33:33 reject UDP 146.64.21.212 192.141.173.72 1234 80
2015-07-19 12:33:34 reject UDP 166.32.22.12 192.141.173.72 1234 80
2015-07-19 12:33:34 reject UDP 123.56.71.145 192.141.173.72 1234 80
2015-07-19 12:33:34 reject UDP 146.64.21.212 192.141.173.72 1234 80
2015-07-19 12:33:35 reject UDP 166.32.22.12 192.141.173.72 1234 80
2015-07-19 12:33:35 reject UDP 123.56.71.145 192.141.173.72 1234 80