https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7555
Jaap Keuter <jaap.keuter@xxxxxxxxx> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |DUPLICATE
--- Comment #3 from Jaap Keuter <jaap.keuter@xxxxxxxxx> 2012-08-02 14:46:58 PDT ---
Ref bug 2472
See RFC 2535, 4033, 4034 and 4035.
The AD bit has no place in a DNS query message, it is only relevant in DNS
responses.
It should not even be set in query, as per RFC 4035:
4.6. Handling of the CD and AD Bits
......
A security-aware resolver MUST clear the AD bit when composing query
messages to protect against buggy name servers that blindly copy
header bits that they do not understand from the query message to the
response message.
So we might want to add an expert item if the flag is set in a query.
This suggestion is _not_ in support of presenting this bit as AD flag.
*** This bug has been marked as a duplicate of bug 2472 ***
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