nanog mailing list archives

Re: IPv6


From: Mike Tancsa <mike () sentex net>
Date: Thu, 18 Nov 2010 17:50:20 -0500

On 11/18/2010 5:44 PM, Mike Tancsa wrote:
On 11/18/2010 5:14 PM, Lee Riemer wrote:
Try tracerouting to 2001:500:4:13::81 (www.arin.net) or 
2001:470:0:76::2 (www.he.net) via Cogent.


Interesting. I noticed a similar issue with  ipv6.cnn.com today. I dont
see it via TATA, but see it via Cogent.  So whats the story behind it
and ARIN not being seen through cogent ?  Is it due to no v6 relation
bewtween he.net and Cogent ?

2620:0:2200:8:8888:8888:8888:8901  (whats with the crazy 8s?)

see
http://lg.as6453.net/lg/

Router: gin-mtt-mcore3
Site: CA, Montreal - MTT, TATA COMM. INT. CENTER
Command: traceroute ipv6 2620:0:2200:8:8888:8888:8888:8901




I see it as 2620:0:2200::/48  from HE ( 6939 2828 5662 )  and Cogent (
174 2828 5662)

TATA says...

Router: gin-mtt-mcore3
Site: CA, Montreal - MTT, TATA COMM. INT. CENTER
Command: show bgp ipv6 unicast 2620:0:2200::/48


% Network not in table

I wonder how many 'holes' are like this...

        ---Mike


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