Michelle Konzack wrote:

> The request was made on my Workstation <192.168.0.91> where  the  NS 
> is <192.168.0.74>.  So, from the AUTHORITY SECTION I can see, my NS 
> server has asked the Internet (as a forwarder) and the response came 
> from  the server <prisoner.iana.org> which is a part of the AS112
> project. 
> 
> Blocking anything except <192.168.0>, <192.168.1> and <192.168.2> 
> would mean I have to setup blocks on 1000th of subnets...

Surely someone has already suggested you run a local nameserver as
authoritative for the rfc1918 networks?  I agree that it has to be
possible to stop SA (or whoever it is) from making those lookups, but
until you've cured the problem, a local authoritative nameserver will
at least deal with the symptoms. 


/Per Jessen, Zürich

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