Same Transaction ID queries

[Samer Khattab]

Hi all,

We have an observation for some queries where BIND caching server receives
multiple queries (three or four,  A or AAAA) for a domain name, with the
same transaction ID in the DNS header in all query packets, and one
response packet is sent back from the server only for these queries.

The client IP,source port and Server IP is the same in these queries.

Is this the right BIND behavior in this case or it is an issue.


Regards,
Samer Khattab
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