Thanks for all your help. I tried to give you points, but don't have any yet. I also tried your code and I guess I wasn't too clear on what I exactly needed, although we are close. MY ISSUE: There are always entries for both Host and Server, but if the Server entry is not listed as a separate row in the HOST column I need to add it as a reciprocal row. Is there a way to do that with |outputnew ?
Example:
HOST SERVER
192.168..1.1 192.168.2.10
192.168.2.10 192.168.1.1 This pair is good
192.168.1.3 192.168.2.11
Missing reciprocal This row needs the reverse
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