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<DIV dir=ltr align=left><SPAN class=202293113-18082009><FONT face=Verdana
color=#0000ff size=2>Since the CIDR block you have been allocated containing
63.250.251.0/24 is smaller than a /16, ARIN is delegating authority for the
IN-ADDR.ARPA zones for each of your /24's directly to your dns servers. In
order for your customer's dns servers to be authoritative for
251.250.63.IN-ADDR.ARPA, you're going to have to have ARIN delegate the
zone to your customer's servers. If you have not already SWIP'ed
the /24 to your customer, then you'll want to do so using the detailed
reassignment template (<A
href="https://www.arin.net/resources/templates/reassign-detailed.txt">https://www.arin.net/resources/templates/reassign-detailed.txt</A>,
I think). If you have already SWIP'ed the space to them, then you'll need
to submit the net-mod template (<A
href="https://www.arin.net/resources/templates/netmod.txt">https://www.arin.net/resources/templates/netmod.txt</A>,
I think) for the /24. (Note: I'm not the person who submits SWIP
templates in our organization, so I might be wrong about the particular
templates to use. But the principle is still valid. It's the SWIP
information filed with ARIN that determines what dns servers are authoritative
for the in-addr.arpa zones for your /24's.)</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=202293113-18082009><FONT face=Verdana
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=202293113-18082009><FONT face=Verdana
color=#0000ff size=2>Ben</FONT></SPAN></DIV><BR>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> bind-users-bounces@lists.isc.org
[mailto:bind-users-bounces@lists.isc.org] <B>On Behalf Of </B>Tim
Huffman<BR><B>Sent:</B> Tuesday, August 18, 2009 7:32 AM<BR><B>To:</B>
bind-users@lists.isc.org<BR><B>Subject:</B> Delegating reverse DNS to a
customer<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Guys,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">We’re a smallish (but growing)
ISP, and we’ve been asked by one of our customers to delegate reverse DNS for
63.250.251.0/24 to their DNS servers, ns1.emns.com – ns4.emns.com.
Unfortunately, we’ve never had to delegate DNS to a customer before, and we’re
having problems getting it to work.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">We’re running BIND 9.5.1 on
Fedora.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Can anyone give me an example of
how this should be done in named.conf and the file
251.250.63.in-addr.arpa.zone? I’d appreciate it!<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">--<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Tim<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>