nanog mailing list archives

Re: Geoip lookup


From: Tom Vest <tvest () eyeconomics com>
Date: Fri, 24 May 2013 15:20:56 -0400


On May 24, 2013, at 3:27 AM, Paul Kelly :: Blacknight wrote:


    Just because I have operations in one region does not preclude me
from having operations
    in other regions.  YMMV of course.

/bill

That was exactly my point, Bill... If you have operations in RIPE and ARIN
regions, it is entirely possible for you to obtain addresses from RIPE or ARIN
and use them in both locations, or, obtain addresses from both RIPE and
ARIN and use them in their respective regions, or mix and match in just about
any imaginable way. Thus, IP addresses don't reside in regions, either. They
are merely issued somewhat regionally.


In theory Maxmind is quite accurate. From 1 x /20 that we own we tag different space with the country: flag in the 
RIPE db. Maxmind picks this up after approx 30 days and says it's in Country X vrs country Y.

Interesting.

I wonder how many days it takes the RIPE db to report the correct country for those more specifics that you've tagged...

TV

e.g.

$ geoiplookup 81.17.247.64
GeoIP Country Edition: US, United States
$ geoiplookup 81.17.247.1 
GeoIP Country Edition: IE, Ireland

Obviously the RIPE db structure makes this simple. As for other RIRs it's not as easy. Like someone else said, it's 
going to be an 80% solution and its really down to good administration from a network operator point of view. i.e. if 
you route some of your RIPE space in ARIN territory you should specify the country. There's numerous reasons for this 
but it's just good practice IMO.

Pk




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