nanog mailing list archives

Re: really facebook?


From: mike <mike () mtcc com>
Date: Thu, 27 Dec 2012 10:29:22 -0800

On 12/27/12 9:25 AM, joel jaeggli wrote:
On 12/27/12 9:04 AM, mike wrote:

I reloaded their app (yes, I know... sew me) and got this warning:

IP address:     2600:100f:b119:c6bc:bd6f:fabb:ff30:2a3d
Estimated location:     Livingston, NJ, US
That's a rather good estimation of where many verizon wireless customers appear to come from.

This can't mean that all of their v6 traffic is backhauled to NJ, right?


Which seems pretty bizarre. I'm guessing they must be getting it from
whois or something based on the address block for Verizon. The reverse
map according to

host 2600:100f:b119:c6bc:bd6f:fabb:ff30:2a3d
one assumes they have a an geoip database like they have for ipv4

comes back with NXDOMAIN. I suppose the real issue here is with Vz
and why they don't have v6 reverse maps, but it did throw me thinking that
somebody in New Jersey might have hacked my account.
Well could certainly wildcard their responses, not sure that dynamic dns updates would be either scalable or appropiate.

Right, brain fart on my part. Reverse map has nothing to do with a geoip database.
It's still strange that it has no reverse map though. I wonder what might break because
of that assumption :)

Mike

Mike




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