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<DIV>I have spent three weeks with the ISP, and they are either incompetent or
unwilling to resolve, or both.</DIV>
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<DIV>And it is definitely not a case of them rolling out a new /24 and simply
forgetting to add it to their DNS server. I have done some digging around, and
they have massive amounts of IPs ranges that have no in-addr.arpa
mappings. </DIV>
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<DIV>I understand some people think that this is an ISP-and-customer issue,
but when an ISP who has a /16 or larger assignment and they engage in activity
that literally slows down external resolvers throughout the internet by
causing tons of excessive reverse DNS timeouts, I do feel it is ARIN's
responsibility to have a policy that will official denounce this practice<SPAN
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size=2> </FONT></SPAN></DIV>
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<DIV dir=ltr><FONT face=Arial><FONT size=2><FONT color=#0000ff><SPAN
class=343530809-11092007>Wrong!</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr><FONT face=Arial><FONT size=2><FONT color=#0000ff><SPAN
class=343530809-11092007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial><FONT size=2><FONT color=#0000ff><SPAN
class=343530809-11092007>It is not ARIN's responsibility to police the Internet.
And ARIN policy should not get involved in such things. And, in fact, it is not
an error to have missing in-addr.arpa delegations. My company has several such
missing delegations on purpose. And I know of at least one company whose
multibillion dollar per year business depends on a lame delegation for a
.com domain name. Reality is much stranger than you can
imagine. </SPAN></FONT></FONT></FONT></DIV>
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class=343530809-11092007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial><FONT size=2><FONT color=#0000ff><SPAN
class=343530809-11092007>If you want to make a formal suggestion to ARIN that it
contact ISPs who have not registered in-addr.arpa nameservers to suggest that it
is a good idea, if the address range is in use on the public Internet, then I
would support that. The formal suggestion box is
here:</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr><FONT face=Arial><FONT size=2><FONT color=#0000ff><SPAN
class=343530809-11092007><A
href="http://www.arin.net/acsp/index.html">http://www.arin.net/acsp/index.html</A></SPAN></FONT></FONT></FONT></DIV>
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class=343530809-11092007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial><FONT size=2><FONT color=#0000ff><SPAN
class=343530809-11092007>ARIN offers in-addr.arpa service to all holders of IP
allocations. It seems reasonable to contact organization who are not using this
service to inform them that the service is available and how to get their
nameservers properly registered. Further, it wouldn't hurt to point them to some
Internet DNS best practices documents so they have a guide that covers things
like putting some zone files into the registered nameservers as
well.</SPAN></FONT></FONT></FONT></DIV>
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class=343530809-11092007></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial><FONT size=2><FONT color=#0000ff><SPAN
class=343530809-11092007>--Michael Dillon</SPAN></FONT></FONT></FONT></DIV>
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