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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Verisign broke GTLDs again?
On Mon, 16 May 2005, Michael Tokarev wrote:
> They're returning FORMERR (which is wrong), *and* don't return the
> original query (numqd=0).
As others have already pointed out, the behavior of the com/net
authoritative name servers with regard to EDNS0 is correct according
to RFC 2671 (the EDNS0 spec). In particular, please see section 5.3:
5.3. Responders who do not understand these protocol extensions are
expected to send a response with RCODE NOTIMPL, FORMERR, or
SERVFAIL. Therefore use of extensions should be "probed" such that
a responder who isn't known to support them be allowed a retry with
no extensions if it responds with such an RCODE. [...]
Matt
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Matt Larson <[email protected]>
VeriSign Naming and Directory Services
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