blocking unallocated subnets
Jon Lewis
jlewis at lewis.org
Fri Dec 2 19:53:25 UTC 2005
On Fri, 2 Dec 2005, John S. Bucy wrote:
> I work for a large email provider and we've run into trouble
> delivering mail to certain sites after bringing up new servers in a
> recently allocated subnet of 72/8. Apparently, some folks decided it
> would be a good policy to protect their nameservers from ddos attacks
> to silently drop requests from unallocated subnets. So they obtained
> a list of subnets at some point in the past, deployed it and then
> never updated it.
Welcome to 2002. Have a look at http://69box.atlantic.net/
----------------------------------------------------------------------
Jon Lewis | I route
Senior Network Engineer | therefore you are
Atlantic Net |
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