It has become clear that the BIND company's ``AXFR clarifications'' are never going to turn into an honest description of the AXFR protocol. Consequently, for the sake of interoperability, I sat down after my last message and wrote a web page saying how AXFR actually works: http://cr.yp.to/djbdns/axfr-notes.html Comments are welcome from anyone who wants to help future implementors. Comments are not welcome from people who are demanding (for commercial reasons or for religious reasons) that most of the DNS servers on the Internet be changed to imitate BIND 9. ---D. J. Bernstein, Associate Professor, Department of Mathematics, Statistics, and Computer Science, University of Illinois at Chicago