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Re: blocking unallocated subnets
- From: Jon Lewis
- Date: Fri Dec 02 14:54:31 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/
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Jon Lewis | I route
Senior Network Engineer | therefore you are
Atlantic Net |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
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