Well as far as code is concerned i cant make sense of it how to write that is why i seek help here and as far as my data is concerned i have already given in my first question the tracroute result where i have to match ip address in each line. once again trace route table is given below i want to check if ip address of line and the line before previous line are same it should display warning msg that says " routing loop". thanks for help

 1  10.0.0.110 (10.0.0.110)  0.449 ms  0.353 ms  0.385 ms
 2  10.0.0.109 (10.0.0.109)  0.367 ms  0.355 ms  0.412 ms
 3  10.0.0.110 (10.0.0.110)  0.660 ms  0.669 ms  0.644 ms
 4  10.0.0.109 (10.0.0.109)  0.794 ms  0.702 ms  0.665 ms
 5  10.0.0.110 (10.0.0.110)  1.113 ms  1.010 ms  0.997 ms
 6  10.0.0.109 (10.0.0.109)  1.039 ms  0.997 ms  1.001 ms
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