Reverse problems

[Tony Huang]

Your ISP didn't delegate the zone to your name servers yet.
dig ns @c.ns.VERIO.NET 16.238.205.in-addr.arpa.

; <<>> DiG 8.2 <<>> ns @c.ns.VERIO.NET 16.238.205.in-addr.arpa.
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr aa rd; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 2
;; QUERY SECTION:
;;      16.238.205.in-addr.arpa, type = NS, class = IN

;; ANSWER SECTION:
16.238.205.in-addr.arpa.  4H IN NS  C.NS.VERIO.NET.
16.238.205.in-addr.arpa.  4H IN NS  U.NS.VERIO.NET.

;; ADDITIONAL SECTION:
C.NS.VERIO.NET.         10h4m42s IN A   129.250.35.33
U.NS.VERIO.NET.         10h4m42s IN A   192.67.14.17

Joseph S D Yao wrote:

> On Wed, Jul 05, 2000 at 03:23:07PM -0700, keith at mail.telestream.com wrote:
> > I have two /24's that my upstream is pulling ptr's from us for.
> > The problem is that one of the /24's will reverse just fine where the
> > other will not if querying from any ns not associated with verio or
> > myself. I'm curious if this could be a problem on my end or there
> > end. Here is all the info. Hope this isn't to general a question.
> >
> > /24 #1     205.238.16/24
> > /24 #2     205.238.4/24
> >
> > My name server  ns.telestream.com
> > Upstream name servers  c.ns.verio.net   u.ns.verio.net
> >
> > If I do a reverse lookup on any IP in either /24 they work fine if
> > querying my server or either of the verio ns servers. If using some other
> > ns to query the 205.238.16/24, it fails where the 205.238.4/24's
> > will work just fine.
> > Any idea's where the problem may be? Thanks for any and all info.
> > If I've not given enough info let me know.
>
> 16.238.205.in-addr.arpa nameserver = NS1.VERIO.NET
> 16.238.205.in-addr.arpa nameserver = NS2.VERIO.NET
> 16.238.205.in-addr.arpa nameserver = NS0.VERIO.NET
>
> 4.238.205.in-addr.arpa  nameserver = NS1.VERIO.NET
> 4.238.205.in-addr.arpa  nameserver = NS2.VERIO.NET
> 4.238.205.in-addr.arpa  nameserver = NS0.VERIO.NET
>
> *** No address information is available for "1.16.238.205.in-addr.arpa."
>
> 1.4.238.205.in-addr.arpa        name = router.telestream.com
> 4.238.205.in-addr.arpa  nameserver = C.NS.VERIO.NET
> 4.238.205.in-addr.arpa  nameserver = U.NS.VERIO.NET
> C.NS.VERIO.NET  internet address = 129.250.35.33
> U.NS.VERIO.NET  internet address = 192.67.14.17
>
> It looks like Verio has an inconsistency in its name server lists for
> 4.238.205.in-addr.arpa.  Nevertheless, Verio has a reverse-DNS entry
> for 1.4.238.205.in-addr.arpa.
>
> I have either picked a bad number for the 16.* network, or Verio does
> not have it entered correctly - or, possibly, in the right name servers.
>
> Good luck.
>
> --
> Joe Yao                         jsdy at cospo.osis.gov - Joseph S. D. Yao
> COSPO/OSIS Computer Support                                     EMT-B
> -----------------------------------------------------------------------
> This message is not an official statement of COSPO policies.