North American Network Operators Group
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Re: Net-24 top prefix generating bogus RFC-1918 queries

  • From: Roland Verlander
  • Date: Sun Jun 01 01:51:24 2003 
John Brown wrote:
> Operators within Net-24 (typically Cable Operators) would
> do good in setting up a AS112 anycasted DNS server within
> their networks.

Same with 68/8. A few large cable operators (Cox, Comcast, Charter,
RoadRunner, etc.) have netblocks in 68/8.
.
> Based on a 1,000,000 query (2 min period of time) here are the
> top 20 /8's that gen bogus queries for RFC-1918 related DNS
> data.
>
> 61637           24.0.0.0
> 51596           65.0.0.0

Why does 65/8 generate almost as many queries as 24/8?