Retirar valores repetidos

Eu tenho essa lista d ips gostaria de saber como eu retiro os ips e macs repetidos dessa lista...tentei fazer alguma coisa usando array_unique mas não obtive sucesso preciso de ajuda uma luz no fim do tunel sei la...segue a lista172.7.71.7 00:30:4F:32:6B:CE 172.7.71.8 00:0E:2E:85:99:BD 172.7.71.11 00:01:36:10:93:17 172.7.71.12 00:0E:2E:BE:20:0D 172.7.71.18 08:10:73:07:9D:B2 172.7.71.22 00:40:F4:AD:63:C2 172.7.71.23 00:0E:2E:5D:40:F9 172.7.71.24 00:0A:52:01:9C:5B 172.7.71.28 00:40:F4:C4:21:D9 172.7.71.33 00:0E:2E:B1:A4:5C 172.7.71.37 00:40:F4:AB:9E:24 172.7.71.39 00:0E:2E:42:E8:68 172.7.71.46 00:0E:2E:BE:25:C2 172.7.71.48 00:40:F4:C5:80:F0 172.7.71.49 00:0E:2E:89:60:A8 172.7.71.50 00:08:54:AB:8C:4F 172.7.71.52 00:01:36:10:A0:26 172.7.71.54 00:0E:2E:B1:A6:F0 172.7.71.55 08:10:73:07:9B:F6 172.7.71.8 00:0E:2E:85:99:BD 172.7.71.9 00:40:F4:C5:17:AB 172.7.71.11 00:01:36:10:93:17 172.7.71.14 00:40:F4:D5:DF:DC 172.7.71.18 08:10:73:07:9D:B2 172.7.71.23 00:0E:2E:5D:40:F9 172.7.71.24 00:0A:52:01:9C:5B 172.7.71.28 00:40:F4:C4:21:D9 172.7.71.37 00:40:F4:AB:9E:24 172.7.71.39 00:0E:2E:42:E8:68 172.7.71.49 00:0E:2E:89:60:A8 172.7.71.52 00:01:36:10:A0:26 172.7.71.15 00:40:F4:E6:AB:25 172.7.71.16 00:30:4F:2E:3A:1C 172.7.71.18 08:10:73:07:9D:B2 172.7.71.22 00:40:F4:AD:63:C2 172.7.71.24 00:0A:52:01:9C:5B 172.7.71.29 00:40:F4:DD:29:CD 172.7.71.48 00:40:F4:C5:80:F0 172.7.71.50 00:08:54:AB:8C:4F 172.7.71.11 00:01:36:10:93:17 172.7.71.14 00:40:F4:D5:DF:DC 172.7.71.15 00:40:F4:E6:AB:25 172.7.71.16 00:30:4F:2E:3A:1C 172.7.71.19 00:05:9E:84:62:83 172.7.71.22 00:40:F4:AD:63:C2 172.7.71.29 00:40:F4:DD:29:CD 172.7.71.37 00:40:F4:AB:9E:24 172.7.71.39 00:0E:2E:42:E8:68 172.7.71.48 00:40:F4:C5:80:F0 172.7.71.50 00:08:54:AB:8C:4F 172.7.71.58 00:08:54:AB:9B:D2