nanog mailing list archives

Re: Google PTR?

From: nanog <nanog () afxr net>
Date: Fri, 26 Oct 2012 22:52:18 -0500

On 10/26/2012 7:13 PM, Blair Trosper wrote:

I'm sure I'm bringing up a topic that's been brought up before, but I
figured I'd have a go.

Anyone from Google around that could answer to why there is no reverse
DNS/PTR with most Google IP addresses (from traceroute, etc)?

Alternatively, is there a server that can be utilized by the net operators
community to at least get an answer on some of the IPs?

It's very frustrating to contend with no PTR records in traces for
troubleshooting and the like.

Any information (off list or on) would be greatly appreciated.

Thanks,
Blair Trosper
Updraft Networks & North Texas GigaPOP

Which particular address are you referring to?
I get PTR responses for the limited set of address I get from google.

such as
den03s06-in-x14.1e100.net [2607:f8b0:400f:801::1014]

Current thread:

Google PTR? Blair Trosper (Oct 26)
- Re: Google PTR? nanog (Oct 26)
  - Re: Google PTR? Christopher Morrow (Oct 26)
    - Re: Google PTR? Anurag Bhatia (Oct 27)
    - Re: Google PTR? Christopher Morrow (Oct 27)
    - Re: Google PTR? Randy Bush (Oct 27)
    - Re: Google PTR? Christopher Morrow (Oct 27)
    - Re: Google PTR? Nick Hilliard (Oct 28)
    - Re: Google PTR? Owen DeLong (Oct 28)