1unknown: list before sort/uniq 2unknown: 168.100.3.2 3unknown: 168.100.3.2 4unknown: 168.100.3.1 5unknown: 168.100.3.3 6unknown: 168.100.3.3 7unknown: 168.100.3.3 8unknown: 168.100.3.4 9unknown: 168.100.3.1 10unknown: 168.100.3.4 11unknown: list after sort/uniq 12unknown: 168.100.3.1 13unknown: 168.100.3.2 14unknown: 168.100.3.3 15unknown: 168.100.3.4 16