nanog mailing list archives

Re: [c-nsp] [Re: huge amount of weird traffic on poin-to-point ethernet link]


From: steve () telecomplete co uk
Date: Thu, 9 Nov 2006 14:47:12 +0000


On Thu, Nov 09, 2006 at 09:26:13AM -0500, Robert Boyle wrote:

At 09:23 AM 11/9/2006, you wrote:
On Thu, Nov 09, 2006, Robert Boyle wrote:

You should also create a bogons list for your BGP routes which you
accept from your upstream. Block all RFC1918 space and unassigned
public addresses too. Just keep on top of it when new allocations are
put into use. We see all kinds of crazy things which people try to
announce (and successfully too - up to our borders anyway.)

Is there a somewhat-reliable bogon BGP feed that can be subscribed to
these days?

We just maintain our own. I remember hearing about one a while ago, 
but we don't use it so I don't know any details.

I'd strongly advise against folks doing it statically.. there seems to be ongoing issues with stale filters each time 
new address space is released. Even with the best of intentions folks change role or employer and things can get left 
unmanaged.

The craziest stuff that gets announced isnt in the reserved/unallocated realm anyway so the effort seems to be 
disproportional to the benefits... and most issues I read about with reserved space is packets coming FROM them not TO 
them....

Steve




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