No ANY records found for 17.171.2.72.
Try 171.2.72 instead?
id 55202, opcode QUERY, rcode NXDOMAIN, flags QR RD RA ;QUESTION 17.171.2.72. IN ANY ;ANSWER ;AUTHORITY . 86397 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2024122500 1800 900 604800 86400 ;ADDITIONAL
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