>>>>> On Tue, 22 Nov 2005 16:22:03 +1100,
>>>>> Mark Andrews <[EMAIL PROTECTED]> said:
>> I've noticed a strange response from gtld servers when I asked an A
>> RRset of "ns.apnic.net". In summary,
>>
>> - gtld servers returns an A RR whose IPv4 address is 203.37.255.97,
>> which is different from the authoritative data (according to
>> apnic.net's authoritative servers, it should be 202.12.29.25)
>> - the response from the gtld servers does not have AA or RA bit.
>> - but the TTL doesn't seem to decrease even if I repeatedly ask the
>> same name to the same server. So, it doesn't seem to be a cached
>> RRset at least in a normal sense.
>> (specific responses using dig are attached below)
> It's a glue record.
Hmm, so the gtld server returns a glue record for which it does not
have the authority in the answer section. While it does not
necessarily seem invalid according to RFC2181 (which prohibits an
authoritative server from returning an authoritative answer as
non-authoritative data, but doesn't say anything about the content of
the answer section), it's still annoying as we see now...
JINMEI, Tatuya
Communication Platform Lab.
Corporate R&D Center, Toshiba Corp.
[EMAIL PROTECTED]
.
dnsop resources:_____________________________________________________
web user interface: http://darkwing.uoregon.edu/~llynch/dnsop.html
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