North American Network Operators Group

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RE: Where are static bogon filters appropriate? was: Bogons

  • From: Eric Ortega
  • Date: Fri Mar 02 16:39:40 2007

I think Sean raises a good point. I guess the larger picture is what are we
trying to protect and what are trying to protect that from. 

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Sean
Sent: Friday, March 02, 2007 3:19 PM
To: Roland Dobbins
Subject: Re: Where are static bogon filters appropriate? was:

On Fri, 2 Mar 2007, Roland Dobbins wrote:
>> Sometimes, network operators have to take the bull
>> by the horns and develop their own systems to do a job that vendors 
>> simply don't understand.
> Concur - but it seems that many seem to be looking for someone else to 
> do
> this for them (or, perhaps, the lack of someone to do it for them as an 
> excuse to do nothing at all).

How much of a problem is traffic from unallocated addresses?  Backbone 
operators probably have NetFlow data which they could mine to find out. On
the other hand, how much of a problem is obsolete bogon filters causing
everytime IANA delegates another block to an RIR?

Or by the way, how much spoofed traffic uses allocated addresses?