BIND 10 #776: IXFR out: Share UDP Address/Port with b10-auth and xfrout

[BIND 10 Development]

#776: IXFR out: Share UDP Address/Port with b10-auth and xfrout
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                   Reporter:         |                 Owner:
  stephen                            |                Status:  new
                       Type:         |             Milestone:  Next-Sprint-
  enhancement                        |  Proposed
                   Priority:  major  |            Resolution:
                  Component:         |             Sensitive:  0
  Unclassified                       |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  0.0
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 We don't plan to support IXFR over UDP in a foreseeable future.

 The right solution for the foreseeable future is to have b10-auth
 return an appropriate response that causes the IXFR client to fall
 back to AXFR.  (BIND 9 returns a single SOA response.  We could do the
 same, but if even that is too much for our simplified b10-auth maybe
 NOTIMP is a better one).

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Ticket URL: <http://bind10.isc.org/ticket/776#comment:2>
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