Re: [OPSAWG] Finding and Using Geofeed Data

Owen DeLong <> Mon, 28 September 2020 05:49 UTC

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From: Owen DeLong <>
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Date: Sun, 27 Sep 2020 22:49:44 -0700
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To: Massimo Candela <>
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Subject: Re: [OPSAWG] Finding and Using Geofeed Data
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I personally think it might be reasonable to add a standard for extended communities in BGP to represent prefix geo-data, but in general, I think it is preferable to discourage the idea that IP and physical addresses have any rational correlation whatsoever, since they really don’t and many of the instances I’ve encountered have wrong assumptions and sloppy thinking applied to create poor user experiences and those are the good ones.


> On Aug 31, 2020, at 1:45 PM, Massimo Candela <> wrote:
> Hi all,
> IP geolocation is often essential but hard to correct when wrong, mostly
> due to the lack of a unified way to provide geolocation data.
> Internet operators may wish to publish the location of some
> of their IP addresses. RFC 8805 (geofeeds) allows network operators
> to publish "a mapping of IP address prefixes to simplified geolocation".
> Unfortunately it doesn't provide any mechanism to actually *find* the
> geofeed files.
> Section 8  ("Finding Self-Published IP Geolocation Feeds") lists this
> as an open problem, and that:
>   Ad hoc mechanisms, while useful for early experimentation by
>   producers and consumers, are unlikely to be adequate for long-term,
>   widespread use by multiple parties.  Future versions of any such
>   self-published geolocation feed mechanism SHOULD address scalability
>   concerns by defining a means for automated discovery and verification
>   of operational authority of advertised prefixes.
> This document provides a (simple) solution to this issue by describing
> a way to include a URL to a geofeed file in an inetnum object, and
> how to prudently consume such geolocation data.
> Draft:
> Please, provide your feedback.
> Have a great day!
> Ciao,
> Massimo
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