NAT64 and matching identities

Owen DeLong owen at delong.com
Fri Nov 22 21:48:17 UTC 2013


So one has to wonder how those names made it into the top 100 list if it’s supposed to be a top 100 web sites, since they are obviously not web sites.
(at least in the case of the two in the top 100)

Owen

On Nov 22, 2013, at 1:28 PM, Tony Hain <alh-ietf at tndh.net> wrote:

> The only thing it explicitly strips out are dotted-quads, which don't occur
> until # 4255. The code makes five passes at getaddrinfo() for IPv4 before
> giving up, and then it checks for a leading www and if that exists it strips
> it off and does the 5 tries loop again, then later the same process for
> IPv6. For the top 100 run:
> akamaihd.net                    no IPv4   no IPv6
> bp.blogspot.com                 no IPv4   no IPv6
> 
> FWIW :::
> Dotted-quad's in the top 10,000
> 4255,92.242.195.24
> 4665,1.1.1.1
> 5079,92.242.195.231
> 6130,1.254.254.254
> 9518,208.98.30.70
> 
>> whois 92.242.195.24
> ...
> netname:        Respina
> descr:          BroadBand IP Pool
> country:        IR
> ...
> route:          92.242.195.0/24
> 
> Respina BroadBand IP Pool in the top 100,000
> 4255,92.242.195.24
> 5079,92.242.195.231
> 10059,92.242.195.233
> 23912,92.242.195.30
> 31520,92.242.195.111
> 35867,92.242.195.235
> 95233,92.242.195.129
> 
> 
>> -----Original Message-----
>> From: Owen DeLong [mailto:owen at delong.com]
>> Sent: Friday, November 22, 2013 12:16 PM
>> To: joel jaeggli
>> Cc: Valdis.Kletnieks at vt.edu; Tony Hain; NANOG List
>> Subject: Re: NAT64 and matching identities
>> 
>> It would be way more than 2 if it were CNAME, methinks.
>> 
>> Owen
>> 
>> On Nov 22, 2013, at 12:12 PM, joel jaeggli <joelja at bogus.com> wrote:
>> 
>>> On 11/22/13, 12:01 PM, Valdis.Kletnieks at vt.edu wrote:
>>>> On Fri, 22 Nov 2013 10:18:27 -0800, "Tony Hain" said:
>>>> 
>>>>> The top 100 websites: AAAA records and IPv6 connectivity
>>>>>          count with A:       98   ( 98.000%)
>>>>>       count with AAAA:       30   ( 30.000%)
>>>>> Of the 30 hosts with AAAA records, testing connectivity to TCP/80:
>>>>>    count with IPv6 ok:       30   (100.000%)
>>>> 
>>>> Statistics whoopsie, or are there actually 2 sites in the top100 that
>>>> are IPv6-only?
>>> 
>>> IN CNAME ? or is that being accounted for.
>>> 
>>> 
>>> 




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