Tracert IP address strange behavior

domain-name-systemipnetworking

I'm not the network admin, so bear with me please.

Is there a way to find out which DNS server is responding to a TRACERT?

When we type

TRACERT 123.45.67.89  

the wrong domain name comes back:

Tracing route to domain-A.com [123.45.67.89]

It should say:

Tracing route to domain-B.com [123.45.67.89]

When we look at the DNS records of domain-B.com, they point to the correct IP address, not to 123.45.67.89. Same for domain-A. The IP addresses look correct.

How do we troubleshoot this? How do we find out where 123.45.67.89 is being incorrectly linked to domain-A?

Best Answer

tracert will give you the PTR, the reverse DNS entry for the IP, not the hostname you supplied on commandline.

So, maybe domain-A.com AND domain-B.com both resolve to 123.45.67.89 (A-Record) and the reverse DNS entry is set to domain-B.com (PTR-Record)

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